Malware Analysis Report

2025-04-14 05:10

Sample ID 250104-ybcc2awjbn
Target JaffaCakes118_7b699a3705ab6157f6309fada4e7c500
SHA256 9f9908fe91dd22d95895dfe26c7059bf84de1d7201019150c14a105821bb55c2
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

9f9908fe91dd22d95895dfe26c7059bf84de1d7201019150c14a105821bb55c2

Threat Level: Known bad

The file JaffaCakes118_7b699a3705ab6157f6309fada4e7c500 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

2025-01-04 19:36

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-04 19:36

Reported

2025-01-04 19:38

Platform

win7-20241023-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.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\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.exe"

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

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54372629 -chipde -c5c41b73ab2a4185aa02f0dc090f4c97 - -BLUB1 -urbggifpfxhbujnx -393562

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

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

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/1696-12-0x000007FEF55AE000-0x000007FEF55AF000-memory.dmp

memory/1696-13-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-14-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

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

MD5 1cf4bf6b18756598471c38f1f49a08a7
SHA1 dd4cf2b390cd7c868433ba371f633d4d77e657b3
SHA256 d9d1574f2917cb8a43b835562f0cabf34e930fc17105d483d1605e094d97cd1f
SHA512 2c46bc1db4fa7450086d706714e59da83f5f8b403f9aefb7ddb0ed53df3fedda342aab6e869453322ad5aa8129ffa983bf1b4dc832eafd141de4efa88d97f6a8

memory/1696-16-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-17-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-19-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-18-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-20-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-21-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

memory/1696-22-0x000007FEF52F0000-0x000007FEF5C8D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-04 19:36

Reported

2025-01-04 19:38

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.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\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.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\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_7b699a3705ab6157f6309fada4e7c500.exe"

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

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71a.exe -install -54372629 -chipde -c5c41b73ab2a4185aa02f0dc090f4c97 - -BLUB1 -rmkzreefrlxmrlhq -327822

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 20.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.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 8.8.8.8:53 237.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 234.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 241.42.69.40.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 21.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 182.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp

Files

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

MD5 317ec5f92cfbf04a53e8125b66b3b4af
SHA1 16068b8977b4dc562ae782d91bc009472667e331
SHA256 7612ef3877c3e4e305a6c22941141601b489a73bc088622a40ebd93bee25bae5
SHA512 ed772da641a5c128677c4c285c648c1d8e539c34522b95c14f614797bb0d188571c7c257441d45598809aa3f8b4690bd53230282726e077c86c8d9fe71c1db65

memory/856-8-0x00007FFC0D665000-0x00007FFC0D666000-memory.dmp

memory/856-10-0x000000001BB90000-0x000000001C05E000-memory.dmp

memory/856-11-0x000000001B4F0000-0x000000001B596000-memory.dmp

memory/856-9-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-12-0x000000001C060000-0x000000001C0FC000-memory.dmp

memory/856-13-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-14-0x0000000000E30000-0x0000000000E38000-memory.dmp

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

MD5 1cf4bf6b18756598471c38f1f49a08a7
SHA1 dd4cf2b390cd7c868433ba371f633d4d77e657b3
SHA256 d9d1574f2917cb8a43b835562f0cabf34e930fc17105d483d1605e094d97cd1f
SHA512 2c46bc1db4fa7450086d706714e59da83f5f8b403f9aefb7ddb0ed53df3fedda342aab6e869453322ad5aa8129ffa983bf1b4dc832eafd141de4efa88d97f6a8

memory/856-16-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-17-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-18-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-19-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-20-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-21-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-22-0x00007FFC0D665000-0x00007FFC0D666000-memory.dmp

memory/856-23-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp

memory/856-25-0x00007FFC0D3B0000-0x00007FFC0DD51000-memory.dmp