Malware Analysis Report

2025-01-02 09:36

Sample ID 240507-hdxtragc24
Target 1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118
SHA256 5847b4b9dfde0cbd35a1dbd452c409f542c38378b6452ac9e96c92e6821dcf41
Tags
gcleaner loader
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

5847b4b9dfde0cbd35a1dbd452c409f542c38378b6452ac9e96c92e6821dcf41

Threat Level: Known bad

The file 1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

gcleaner loader

GCleaner

Deletes itself

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Kills process with taskkill

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-07 06:37

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-07 06:37

Reported

2024-05-07 06:40

Platform

win7-20231129-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe"

Signatures

GCleaner

loader gcleaner

Deletes itself

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

Enumerates physical storage devices

Kills process with taskkill

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe" /f

Network

N/A

Files

memory/2924-2-0x0000000000400000-0x0000000000447000-memory.dmp

memory/2924-1-0x00000000008E0000-0x00000000009E0000-memory.dmp

memory/2924-3-0x0000000000400000-0x00000000007F1000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-07 06:37

Reported

2024-05-07 06:40

Platform

win10v2004-20240419-en

Max time kernel

138s

Max time network

107s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe"

Signatures

GCleaner

loader gcleaner

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2818691465-3043947619-2475182763-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe N/A

Enumerates physical storage devices

Kills process with taskkill

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\taskkill.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\System32\cmd.exe" /c taskkill /im "1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe" & exit

C:\Windows\SysWOW64\taskkill.exe

taskkill /im "1fc41c7afda7b69a74ef89e3f6f0f2a6_JaffaCakes118.exe" /f

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 209.14.97.104.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp

Files

memory/884-1-0x0000000000AC0000-0x0000000000BC0000-memory.dmp

memory/884-2-0x0000000000400000-0x0000000000447000-memory.dmp

memory/884-3-0x0000000000400000-0x00000000007F1000-memory.dmp