Malware Analysis Report

2025-04-13 22:09

Sample ID 240825-lvg2eaxgka
Target c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118
SHA256 9496905b33fbe997125795f10c41413bc7865d25bda644c8ae8dab71f4429d15
Tags
discovery
score
8/10

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
8/10

SHA256

9496905b33fbe997125795f10c41413bc7865d25bda644c8ae8dab71f4429d15

Threat Level: Likely malicious

The file c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

discovery

Drops file in Drivers directory

Loads dropped DLL

Deletes itself

Executes dropped EXE

Drops file in System32 directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: LoadsDriver

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 09:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-25 09:51

Reported

2024-08-25 09:53

Platform

win7-20240705-en

Max time kernel

16s

Max time network

18s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\drivers\beep.sys C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\drivers\beep.sys C:\Windows\SysWOW64\Manager.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Manager.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Manager.exe C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\Manager.exe C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\Manager.exe C:\Windows\SysWOW64\Manager.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\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\Manager.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: LoadsDriver

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\Manager.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1320 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\Manager.exe
PID 1320 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\Manager.exe
PID 1320 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\Manager.exe
PID 1320 wrote to memory of 2072 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\Manager.exe
PID 1320 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1320 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1320 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 1320 wrote to memory of 1992 N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2072 wrote to memory of 2764 N/A C:\Windows\SysWOW64\Manager.exe C:\Windows\SysWOW64\cmd.exe
PID 2072 wrote to memory of 2764 N/A C:\Windows\SysWOW64\Manager.exe C:\Windows\SysWOW64\cmd.exe
PID 2072 wrote to memory of 2764 N/A C:\Windows\SysWOW64\Manager.exe C:\Windows\SysWOW64\cmd.exe
PID 2072 wrote to memory of 2764 N/A C:\Windows\SysWOW64\Manager.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe"

C:\Windows\SysWOW64\Manager.exe

"C:\Windows\system32\Manager.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\C07A4A~1.EXE > nul

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Windows\SysWOW64\Manager.exe > nul

Network

N/A

Files

\Windows\SysWOW64\Manager.exe

MD5 c07a4a29b484aa8e9796c31341343aa2
SHA1 14f6fe6ffdf0645b5dac73f8aab0e1f820271dec
SHA256 9496905b33fbe997125795f10c41413bc7865d25bda644c8ae8dab71f4429d15
SHA512 59ac0befceeae0330ad35a8d4b7d941ea1f5eaadf97113f5308219b3b93138fdf127d2960c5ddbfc5db5b3eb157933d3cabba80997c8764a41561d13118cc416

C:\Windows\SysWOW64\drivers\beep.sys

MD5 2de9ca34e22d737cd652c4a03b286d30
SHA1 7cc13e24ba544265590b99f49a4c768d189ff447
SHA256 4c8fd01a26646ae36a763dfda0ee663bb92b59f7e09a58ea4441fa4d3aa612b4
SHA512 c6f12a4f52177bc128fd9752746ebe1800b412df43b64f861feb229b8ac8f884b8e9b663f3197e69f22c195aff0281b931440e462270764248a1d0173949cb05

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 09:51

Reported

2024-08-25 09:53

Platform

win10v2004-20240802-en

Max time kernel

144s

Max time network

135s

Command Line

"C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe"

Signatures

Drops file in Drivers directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\drivers\beep.sys C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\drivers\beep.sys C:\Windows\SysWOW64\Manager.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\Manager.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\Manager.exe C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\Manager.exe C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\Manager.exe C:\Windows\SysWOW64\Manager.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\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\Manager.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: LoadsDriver

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe N/A
Token: SeIncBasePriorityPrivilege N/A C:\Windows\SysWOW64\Manager.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\c07a4a29b484aa8e9796c31341343aa2_JaffaCakes118.exe"

C:\Windows\SysWOW64\Manager.exe

"C:\Windows\system32\Manager.exe"

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\C07A4A~1.EXE > nul

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c del C:\Windows\SysWOW64\Manager.exe > nul

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 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

C:\Windows\SysWOW64\Manager.exe

MD5 c07a4a29b484aa8e9796c31341343aa2
SHA1 14f6fe6ffdf0645b5dac73f8aab0e1f820271dec
SHA256 9496905b33fbe997125795f10c41413bc7865d25bda644c8ae8dab71f4429d15
SHA512 59ac0befceeae0330ad35a8d4b7d941ea1f5eaadf97113f5308219b3b93138fdf127d2960c5ddbfc5db5b3eb157933d3cabba80997c8764a41561d13118cc416

C:\Windows\SysWOW64\drivers\beep.sys

MD5 2de9ca34e22d737cd652c4a03b286d30
SHA1 7cc13e24ba544265590b99f49a4c768d189ff447
SHA256 4c8fd01a26646ae36a763dfda0ee663bb92b59f7e09a58ea4441fa4d3aa612b4
SHA512 c6f12a4f52177bc128fd9752746ebe1800b412df43b64f861feb229b8ac8f884b8e9b663f3197e69f22c195aff0281b931440e462270764248a1d0173949cb05