Malware Analysis Report

2025-03-14 22:35

Sample ID 240406-1v8axsch59
Target e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118
SHA256 07bc6f8103736d804e382aeaaad737ef9319167521135bd180b569a1656f9eb7
Tags
persistence
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

07bc6f8103736d804e382aeaaad737ef9319167521135bd180b569a1656f9eb7

Threat Level: Known bad

The file e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

persistence

Adds autorun key to be loaded by Explorer.exe on startup

Loads dropped DLL

Executes dropped EXE

Drops file in Windows directory

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-06 21:59

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-06 21:59

Reported

2024-04-06 22:01

Platform

win7-20240221-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe"

Signatures

Adds autorun key to be loaded by Explorer.exe on startup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\System = "{258B10D9-E9E5-4467-842E-9573FBF7E90D}" C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Executes dropped EXE

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

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\kmc.dll C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
File created C:\Windows\csrss.exe C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{258B10D9-E9E5-4467-842E-9573FBF7E90D}\InProcServer32\ = "kmc.dll" C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{258B10D9-E9E5-4467-842E-9573FBF7E90D}\InProcServer32 C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{258B10D9-E9E5-4467-842E-9573FBF7E90D} C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\csrss.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe"

C:\Windows\csrss.exe

C:\Windows\csrss.exe

Network

Country Destination Domain Proto
US 8.8.8.8:53 irc.foofle.net udp
DE 64.190.63.222:6667 irc.foofle.net tcp
DE 64.190.63.222:6667 irc.foofle.net tcp
DE 64.190.63.222:6667 irc.foofle.net tcp
DE 64.190.63.222:6667 irc.foofle.net tcp
DE 64.190.63.222:6667 irc.foofle.net tcp

Files

C:\Windows\csrss.exe

MD5 ccdd35b1de5c2120cfee6131cf177d1c
SHA1 c9718bb0da8d8cb9d2e37da8f0d00bd85ab25882
SHA256 21c0e0476808fc9bc7df33d525cb1073952ea4acf6dbd290759f67be1bff3289
SHA512 0e74d71ee5e726b92b02c4759a331d4b67a126df9faf52cb169746404b58ddf1d3f4bd6a82ef557b71be3dd7c8c609c4a3e724a226cd3afd55f53d3c4b95ad18

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-06 21:59

Reported

2024-04-06 22:01

Platform

win10v2004-20231215-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe"

Signatures

Adds autorun key to be loaded by Explorer.exe on startup

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\System = "{E51026E3-7709-40C1-B02F-6874A3BD2F19}" C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\kmc.dll C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
File created C:\Windows\csrss.exe C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E51026E3-7709-40C1-B02F-6874A3BD2F19} C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E51026E3-7709-40C1-B02F-6874A3BD2F19}\InProcServer32\ = "kmc.dll" C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{E51026E3-7709-40C1-B02F-6874A3BD2F19}\InProcServer32 C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\csrss.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e3614ba296c9b4a5cd4537c90f072865_JaffaCakes118.exe"

C:\Windows\csrss.exe

C:\Windows\csrss.exe

Network

Country Destination Domain Proto
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 178.223.142.52.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 17.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 irc.foofle.net udp
DE 64.190.63.222:6667 irc.foofle.net tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 159.113.53.23.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
DE 64.190.63.222:6667 irc.foofle.net tcp
US 8.8.8.8:53 8.192.122.92.in-addr.arpa udp
DE 64.190.63.222:6667 irc.foofle.net tcp
DE 64.190.63.222:6667 irc.foofle.net tcp
US 8.8.8.8:53 233.17.178.52.in-addr.arpa udp
DE 64.190.63.222:6667 irc.foofle.net tcp

Files

C:\Windows\kmc.dll

MD5 6a8bab35163020812bc332b14307f3a1
SHA1 9e9218e2b36ebbe74edd92101a74aed5f9ab6c84
SHA256 69c1c4ebea0829a8936a83c7f8f8704c168456b87da0a446bf34550bfdced349
SHA512 8ba9ea1b9cc30d088a01d03f1c320a6ef202f6cc0938ffbfa7b59a22949f55694c3058055d8e6b72cb3016eb4bf4cdfd7b085d3c8a35a0d1496a737b4a61773a

C:\Windows\csrss.exe

MD5 ccdd35b1de5c2120cfee6131cf177d1c
SHA1 c9718bb0da8d8cb9d2e37da8f0d00bd85ab25882
SHA256 21c0e0476808fc9bc7df33d525cb1073952ea4acf6dbd290759f67be1bff3289
SHA512 0e74d71ee5e726b92b02c4759a331d4b67a126df9faf52cb169746404b58ddf1d3f4bd6a82ef557b71be3dd7c8c609c4a3e724a226cd3afd55f53d3c4b95ad18