Monster Libra (TA551/Shathak) --> IcedID (Bokbot) --> Cobalt Strike & DarkVNC
Introduction
On Monday, 2022-08-22, I generated an IcedID (Bokbot) infection based on Monster Libra (also known as TA551 or Shathak). See this tweet thread from @pr0xylife and @Max_Mal_ for details on Monday's specific wave of IcedID infection. My flow chart on this activity follows.
Shown above: Flow chart from Monster Libra (TA551/Shathak) IcedID infection on Monday 2022-08-22.
Malware and Artifacts
SHA256 hash: 7d0f80026a49bdc5c9e6b6bb614b37a9edbb0ca50127c7078ff52d4fc729afa8
- File size: 285,184 bytes
- File location: hxxp://138.124.183[.]50/barkss/u2lj2R9GN67SRsb7DZYKzF1jBt-yY6AVrA~~/5B6_95Swfy8TXGHD58qeEjYyxRXTL1bqhw~~/
- File location: File location: C:\Users\[username]\AppData\Local\Temp\iQG29uba.dll
- File description: 64-bit DLL installer for IcedID from Monster Libra (TA551) URL
- Run method: rundll32.exe [filename], #1
SHA256 hash: a969f17bf162032878417da351a229a3ef428cac99b485aedbded04f62291dee
- File size: 615,868 bytes
- File location: hxxp://satisfyammyz[.]com/
- File description: gzip binary from satisfyammyz[.]com used to create license.dat and persistent IcedID DLL
SHA256 hash: 1de8b101cf9f0fabc9f086bddb662c89d92c903c5db107910b3898537d4aa8e7
- File size: 342,218 bytes
- File location: C:\Users\[username]\AppData\Roaming\IslandDose\license.dat
- File description: data binary used to run persistent DLL for IcedID
- Note: this data binary was first submitted to VirusTotal on 2020-07-15
SHA256 hash: 501c05b11d90bbcc5b9439a41a66f9a4e1704447f795ce336492eb5e25c4ef8a
- File size: 272,896 bytes
- File location: C:\Users\[username]\AppData\Roaming\[username]\[username]\Kiroepdn3.dll
- File description: 64-bit persistent DLL for IcedID
- Run method: rundll32.exe [filename],#1 --tapeeb="[path to license.dat]"
SHA256 hash: e4ffdbfb5878a94d27139e2e7ff3b5b91944e1434935028a3c34894988b353bf
- File size: 1,018,880 bytes
- File location: hxxps://rosiyife[.]com/je.dll
- File location: C:\Users\[username]\AppData\Local\Temp\Ehki64.dll
- File description: 64-bit DLL for Cobalt Strike stager
- Run method: regsvr32.exe [filename]
Infection Traffic
MONSTER LIBRA (TA551) URL FOR ICEDID INSTALLER DLL:
- hxxp://138.124.183[.]50/barkss/u2lj2R9GN67SRsb7DZYKzF1jBt-yY6AVrA~~/5B6_95Swfy8TXGHD58qeEjYyxRXTL1bqhw~~/
ICEDID INSTALLER TRAFFIC FOR GZIP BINARY:
- 164.92.65[.]3:80 - hxxp://satisfyammyz[.]com/
ICEDID C2 TRAFFIC:
- 142.93.145[.]128:443 - klareqvino[.]com - HTTPS traffic
- 46.21.153[.]211:443 - wiandukachelly[.]com - HTTPS traffic
- 146.190.24[.]131:443 - alohasockstaina[.]com - HTTPS traffic
TRAFFIC FOR COBALT STRIKE STAGER:
- 213.227.154[.]24:80 - hxxp://rosiyife[.]com/je.dll (redirects to HTTPS URL)
- 213.227.154[.]24:443 - hxxps://rosiyife[.]com/je.dll
COBALT STRIKE C2 TRAFFIC:
- 23.82.141[.]241:443 - jejonebew[.]com - HTTPS traffic
POSSIBLE COBALT STRIKE-RELATED DOMAIN:
- 64.44.135[.]116:443 - xizojize[.]com - HTTPS traffic
DARK VNC TRAFFIC:
- 135.181.175[.]108:8080 - encoded/encrypted traffic
Images from the Infection Traffic
Shown above: Traffic from the infection filtered in Wireshark (1 of 4).
Shown above: Traffic from the infection filtered in Wireshark (2 of 4).
Shown above: Traffic from the infection filtered in Wireshark (3 of 4).
Shown above: Traffic from the infection filtered in Wireshark (4 of 4).
Final Words
We expect to see more of this activity in the coming weeks.
Brad Duncan
brad [at] malware-traffic-analysis.net
Comments
Anonymous
Dec 3rd 2022
9 months ago
Anonymous
Dec 3rd 2022
9 months ago
<a hreaf="https://technolytical.com/">the social network</a> is described as follows because they respect your privacy and keep your data secure. The social networks are not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go.
<a hreaf="https://technolytical.com/">the social network</a> is not interested in collecting data about you. They don't care about what you're doing, or what you like. They don't want to know who you talk to, or where you go. The social networks only collect the minimum amount of information required for the service that they provide. Your personal information is kept private, and is never shared with other companies without your permission
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> nearest public toilet to me</a>
<a hreaf="https://defineprogramming.com/the-public-bathroom-near-me-find-nearest-public-toilet/"> public bathroom near me</a>
Anonymous
Dec 26th 2022
9 months ago
Anonymous
Dec 26th 2022
9 months ago
https://defineprogramming.com/
Dec 26th 2022
9 months ago
distribute malware. Even if the URL listed on the ad shows a legitimate website, subsequent ad traffic can easily lead to a fake page. Different types of malware are distributed in this manner. I've seen IcedID (Bokbot), Gozi/ISFB, and various information stealers distributed through fake software websites that were provided through Google ad traffic. I submitted malicious files from this example to VirusTotal and found a low rate of detection, with some files not showing as malware at all. Additionally, domains associated with this infection frequently change. That might make it hard to detect.
https://clickercounter.org/
https://defineprogramming.com/
Dec 26th 2022
9 months ago
rthrth
Jan 2nd 2023
8 months ago