Malware Analysis Report

2025-04-14 05:12

Sample ID 250104-kxtbsasmfz
Target JaffaCakes118_78ce19e041faa67ab75a560d21eec820
SHA256 3d66a969bd3e6d40bcc4a84d7cb45fb246e9d3178853a0542c703c5f74f2d9ba
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

3d66a969bd3e6d40bcc4a84d7cb45fb246e9d3178853a0542c703c5f74f2d9ba

Threat Level: Known bad

The file JaffaCakes118_78ce19e041faa67ab75a560d21eec820 was found to be: Known bad.

Malicious Activity Summary

revengerat discovery stealer trojan

RevengeRAT

Revengerat family

RevengeRat Executable

Loads dropped DLL

Executes dropped EXE

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-01-04 08:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-01-04 08:59

Reported

2025-01-04 09:01

Platform

win7-20240903-en

Max time kernel

144s

Max time network

128s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.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_v71b.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.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_78ce19e041faa67ab75a560d21eec820.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.exe"

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe -install -4871177 -techradar -0b74502c2fe34db2ae29d84d3485c7c0 - - -gyjxklautxmbwtnn -524486

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 admin.download-sponsor.de udp
DE 176.9.175.235:80 admin.download-sponsor.de tcp

Files

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe

MD5 ac5b9b93e6300b94aa36bdb4dd478972
SHA1 972db9071c719922142be77cf935c208b66f8de2
SHA256 c3cd658e9d163ab548f9d2e37cd03d997069d146755a45283b48b9b3e07bd6e9
SHA512 65e4fe7ccc1f338e09559ad7d3a17c55d26500342c1bc29cf79e50d5452ee8b3e2968bd0505127db644d7307dd24a899d39820d0df55bb5fbbfca837ad163603

memory/1632-9-0x000007FEF5B63000-0x000007FEF5B64000-memory.dmp

memory/1632-10-0x0000000000BB0000-0x0000000000C06000-memory.dmp

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

MD5 0a3f15c0799a6131415052bca7a1240f
SHA1 55db59d7918eb56a8f0619c18abea844d8d1ac20
SHA256 b195bce571a284d6402cd66e09cfcd82f09e15e28c997205ee3cc6fde87cff59
SHA512 b5762f1f2d27d488ee445cf9d3354e297ea2502849cb6453bc5a766932bd9953b33c77690bad2d38d1c4043ce752063ca1722760f355373091eabafe3eb1bd81

memory/1632-12-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-13-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-14-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-15-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-16-0x000007FEF5B63000-0x000007FEF5B64000-memory.dmp

memory/1632-17-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-18-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-19-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-20-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-21-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-22-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-23-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-24-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-25-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-26-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

memory/1632-27-0x000007FEF5B60000-0x000007FEF654C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-01-04 08:59

Reported

2025-01-04 09:01

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.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_v71b.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_78ce19e041faa67ab75a560d21eec820.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.exe

"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_78ce19e041faa67ab75a560d21eec820.exe"

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe -install -4871177 -techradar -0b74502c2fe34db2ae29d84d3485c7c0 - - -rizsgkqhdzmfdyyc -589926

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 admin.download-sponsor.de udp
US 8.8.8.8:53 133.130.81.91.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 237.175.9.176.in-addr.arpa udp
DE 176.9.175.235:80 admin.download-sponsor.de tcp
US 8.8.8.8:53 235.175.9.176.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 22.49.80.91.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 181.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

C:\Users\Admin\AppData\Local\Temp\OCS\ocs_v71b.exe

MD5 ac5b9b93e6300b94aa36bdb4dd478972
SHA1 972db9071c719922142be77cf935c208b66f8de2
SHA256 c3cd658e9d163ab548f9d2e37cd03d997069d146755a45283b48b9b3e07bd6e9
SHA512 65e4fe7ccc1f338e09559ad7d3a17c55d26500342c1bc29cf79e50d5452ee8b3e2968bd0505127db644d7307dd24a899d39820d0df55bb5fbbfca837ad163603

memory/116-8-0x00007FFD37FB3000-0x00007FFD37FB5000-memory.dmp

memory/116-9-0x00000000001C0000-0x0000000000216000-memory.dmp

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

MD5 0a3f15c0799a6131415052bca7a1240f
SHA1 55db59d7918eb56a8f0619c18abea844d8d1ac20
SHA256 b195bce571a284d6402cd66e09cfcd82f09e15e28c997205ee3cc6fde87cff59
SHA512 b5762f1f2d27d488ee445cf9d3354e297ea2502849cb6453bc5a766932bd9953b33c77690bad2d38d1c4043ce752063ca1722760f355373091eabafe3eb1bd81

memory/116-11-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-12-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-13-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-14-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-15-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-16-0x00007FFD37FB3000-0x00007FFD37FB5000-memory.dmp

memory/116-17-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-18-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-19-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-20-0x000000001D590000-0x000000001DCE7000-memory.dmp

memory/116-21-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-22-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-26-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp

memory/116-28-0x00007FFD37FB0000-0x00007FFD38A71000-memory.dmp