Malware Analysis Report

2025-04-14 05:10

Sample ID 250107-kjm8lstjbt
Target 28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe
SHA256 28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3
Tags
revengerat discovery stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3

Threat Level: Known bad

The file 28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe was found to be: Known bad.

Malicious Activity Summary

revengerat discovery stealer trojan

RevengeRAT

Revengerat family

RevengeRat Executable

Executes dropped EXE

Loads dropped DLL

System Location Discovery: System Language Discovery

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-07 08:37

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-07 08:37

Reported

2025-01-07 08:40

Platform

win7-20240903-en

Max time kernel

15s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

RevengeRat Executable

stealer
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe

"C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe"

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54415075 -chipde -e33652a8fabc46ce8a92e38e4f18054b - -BLUB1 -pnnpuzjwyygalsop -524634

Network

Country Destination Domain Proto
US 8.8.8.8:53 thinklabs-ltd.de udp
DE 176.9.175.237:80 thinklabs-ltd.de tcp
US 8.8.8.8:53 bin.download-sponsor.de udp
DE 176.9.175.234:443 bin.download-sponsor.de tcp

Files

\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/2476-12-0x000007FEF5C9E000-0x000007FEF5C9F000-memory.dmp

memory/2476-13-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\OCS\pnnpuzjwyygalsop.dat

MD5 155d9825080bd9262b151466a30cadc2
SHA1 fe79ed0c9b86fd239b20c6fdf7e1c8685a146f5b
SHA256 f6e7b0231a4ca12894bc7ac5dd60741df89b50cde8ee0da83493a23a19c9b9e2
SHA512 c1b0ba62ae9668f8603ceb682368d55780b8597784ab32be11552bf80720ff8e88e2bce69a5a35e50a302147410f76d60196448b6740848cfa384ca1c3cf126b

memory/2476-15-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-16-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-17-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-18-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-19-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-20-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-21-0x000007FEF5C9E000-0x000007FEF5C9F000-memory.dmp

memory/2476-22-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-23-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

memory/2476-24-0x000007FEF59E0000-0x000007FEF637D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-07 08:37

Reported

2025-01-07 08:40

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

97s

Command Line

"C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe"

Signatures

RevengeRAT

trojan revengerat

Revengerat family

revengerat

RevengeRat Executable

stealer
Description Indicator Process Target
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe

"C:\Users\Admin\AppData\Local\Temp\28d73c805bdc4eb8ccfd0fcb8caa6d6e825c8ea9f0b79c2f4f6c169c30b54aa3.exe"

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54415075 -chipde -e33652a8fabc46ce8a92e38e4f18054b - -BLUB1 -ihnqskpmhiykuhwk -786490

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 thinklabs-ltd.de udp
DE 176.9.175.237:80 thinklabs-ltd.de tcp
US 8.8.8.8:53 bin.download-sponsor.de udp
DE 176.9.175.234:443 bin.download-sponsor.de tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 234.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 167.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/3336-8-0x00007FFF66735000-0x00007FFF66736000-memory.dmp

memory/3336-10-0x000000001B8B0000-0x000000001BD7E000-memory.dmp

memory/3336-9-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-11-0x000000001B1E0000-0x000000001B286000-memory.dmp

memory/3336-12-0x000000001BD80000-0x000000001BE1C000-memory.dmp

memory/3336-13-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-14-0x0000000000C00000-0x0000000000C08000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\OCS\ihnqskpmhiykuhwk.dat

MD5 155d9825080bd9262b151466a30cadc2
SHA1 fe79ed0c9b86fd239b20c6fdf7e1c8685a146f5b
SHA256 f6e7b0231a4ca12894bc7ac5dd60741df89b50cde8ee0da83493a23a19c9b9e2
SHA512 c1b0ba62ae9668f8603ceb682368d55780b8597784ab32be11552bf80720ff8e88e2bce69a5a35e50a302147410f76d60196448b6740848cfa384ca1c3cf126b

memory/3336-16-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-17-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-18-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-19-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-20-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-21-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-22-0x00007FFF66735000-0x00007FFF66736000-memory.dmp

memory/3336-23-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp

memory/3336-25-0x00007FFF66480000-0x00007FFF66E21000-memory.dmp