Malware Analysis Report

2025-03-14 22:57

Sample ID 240406-12j7nscd71
Target e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118
SHA256 ef8d6fb4b842c10688f48506482656bc2dc6f383809e2055c5a62b589d1cce66
Tags
persistence
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

ef8d6fb4b842c10688f48506482656bc2dc6f383809e2055c5a62b589d1cce66

Threat Level: Likely malicious

The file e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118 was found to be: Likely malicious.

Malicious Activity Summary

persistence

Sets service image path in registry

Deletes itself

Executes dropped EXE

Drops file in System32 directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 22:08

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 22:08

Reported

2024-04-06 22:12

Platform

win7-20240221-en

Max time kernel

122s

Max time network

144s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe"

Signatures

Sets service image path in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\632554BC\ImagePath = "C:\\Windows\\system32\\4F110C58.EXE -a" C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.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\4F110C58.EXE N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\4F110C58.EXE C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\4F110C58.EXE C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\4F110C58.EXE C:\Windows\SysWOW64\4F110C58.EXE N/A
File created C:\Windows\SysWOW64\delme.bat C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\6C8F6E52.DLL C:\Windows\SysWOW64\4F110C58.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe"

C:\Windows\SysWOW64\4F110C58.EXE

C:\Windows\SysWOW64\4F110C58.EXE -a

C:\Windows\SysWOW64\cmd.exe

cmd /c C:\Windows\system32\delme.bat

Network

N/A

Files

memory/2640-0-0x0000000000400000-0x0000000000418000-memory.dmp

C:\Windows\SysWOW64\4F110C58.EXE

MD5 e36575fe8a6ea4cfbd22593052f360ae
SHA1 1457fe3e6205b4d6e06d0666439a5ba1f2d88d9c
SHA256 ef8d6fb4b842c10688f48506482656bc2dc6f383809e2055c5a62b589d1cce66
SHA512 d8ac50f5c31661a3ba0bafd3551932ee5b0469bcd70d1182c26183ddff6181e0ebb0d51afed6f9658af65a2129ddd36c949e65470da78bc8377a750605383483

memory/2592-5-0x0000000000230000-0x0000000000270000-memory.dmp

memory/2592-3-0x0000000000400000-0x0000000000418000-memory.dmp

C:\Windows\SysWOW64\delme.bat

MD5 30746eeec4f3fe6c38ffe918289bd676
SHA1 8979a9a0c15445ea109dc23c34c3be0b285b3cc8
SHA256 12f0796c02158df416927fb6589d1bff3c0744e94a863216b972813abcfe4ff8
SHA512 d65be7dc30a388e1549cc1bf77adebacd435687daee7561a26542cb86d776c7dfbfafffcccc941fdc2f66446c5fc60ecf0ac6418094d3cf43b69b26f1f734815

memory/2592-15-0x0000000000400000-0x0000000000418000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 22:08

Reported

2024-04-06 22:11

Platform

win10v2004-20240226-en

Max time kernel

92s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe"

Signatures

Sets service image path in registry

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\A6734928\ImagePath = "C:\\Windows\\system32\\E9AFBE1C.EXE -a" C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\E9AFBE1C.EXE N/A

Drops file in System32 directory

Description Indicator Process Target
File created C:\Windows\SysWOW64\delme.bat C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\F02008C8.DLL C:\Windows\SysWOW64\E9AFBE1C.EXE N/A
File created C:\Windows\SysWOW64\E9AFBE1C.EXE C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A
File opened for modification C:\Windows\SysWOW64\E9AFBE1C.EXE C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe N/A
File created C:\Windows\SysWOW64\E9AFBE1C.EXE C:\Windows\SysWOW64\E9AFBE1C.EXE N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e36575fe8a6ea4cfbd22593052f360ae_JaffaCakes118.exe"

C:\Windows\SysWOW64\E9AFBE1C.EXE

C:\Windows\SysWOW64\E9AFBE1C.EXE -a

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c C:\Windows\system32\delme.bat

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 17.83.221.88.in-addr.arpa udp

Files

memory/4704-0-0x0000000000400000-0x0000000000418000-memory.dmp

C:\Windows\SysWOW64\E9AFBE1C.EXE

MD5 e36575fe8a6ea4cfbd22593052f360ae
SHA1 1457fe3e6205b4d6e06d0666439a5ba1f2d88d9c
SHA256 ef8d6fb4b842c10688f48506482656bc2dc6f383809e2055c5a62b589d1cce66
SHA512 d8ac50f5c31661a3ba0bafd3551932ee5b0469bcd70d1182c26183ddff6181e0ebb0d51afed6f9658af65a2129ddd36c949e65470da78bc8377a750605383483

memory/1936-4-0x0000000000400000-0x0000000000418000-memory.dmp

memory/4704-8-0x0000000000400000-0x0000000000418000-memory.dmp

C:\Windows\SysWOW64\delme.bat

MD5 30746eeec4f3fe6c38ffe918289bd676
SHA1 8979a9a0c15445ea109dc23c34c3be0b285b3cc8
SHA256 12f0796c02158df416927fb6589d1bff3c0744e94a863216b972813abcfe4ff8
SHA512 d65be7dc30a388e1549cc1bf77adebacd435687daee7561a26542cb86d776c7dfbfafffcccc941fdc2f66446c5fc60ecf0ac6418094d3cf43b69b26f1f734815

memory/1936-10-0x0000000000400000-0x0000000000418000-memory.dmp