Malware Analysis Report

2025-03-14 22:27

Sample ID 240407-3cea8she91
Target e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118
SHA256 1b15cc8ec2b087165e7b6f274c520b5a7cb4a065e69d025b49598e4274628afb
Tags
persistence
score
7/10

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
7/10

SHA256

1b15cc8ec2b087165e7b6f274c520b5a7cb4a065e69d025b49598e4274628afb

Threat Level: Shows suspicious behavior

The file e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118 was found to be: Shows suspicious behavior.

Malicious Activity Summary

persistence

Deletes itself

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-07 23:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-07 23:21

Reported

2024-04-07 23:22

Platform

win7-20240220-en

Max time kernel

6s

Max time network

6s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe"

Signatures

Deletes itself

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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows\CurrentVersion\Run\1245331720 = "C:\\Users\\Admin\\1245331720.exe" C:\Windows\SysWOW64\reg.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeIncBasePriorityPrivilege N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\SysWOW64\shutdown.exe N/A
Token: SeRemoteShutdownPrivilege N/A C:\Windows\SysWOW64\shutdown.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2292 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2292 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2292 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2292 wrote to memory of 2100 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2100 wrote to memory of 2540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2100 wrote to memory of 2540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2100 wrote to memory of 2540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2100 wrote to memory of 2540 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\reg.exe
PID 2292 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\shutdown.exe
PID 2292 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\shutdown.exe
PID 2292 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\shutdown.exe
PID 2292 wrote to memory of 2736 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\shutdown.exe
PID 2292 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2292 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2292 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe
PID 2292 wrote to memory of 2552 N/A C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe"

C:\Windows\SysWOW64\cmd.exe

cmd.exe /c REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1245331720 /t REG_SZ /d "%userprofile%\1245331720.exe" /f

C:\Windows\SysWOW64\reg.exe

REG ADD HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v 1245331720 /t REG_SZ /d "C:\Users\Admin\1245331720.exe" /f

C:\Windows\SysWOW64\shutdown.exe

"C:\Windows\System32\shutdown.exe" /r /f /t 3

C:\Windows\SysWOW64\cmd.exe

"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\E6195A~1.EXE > nul

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x0

C:\Windows\system32\LogonUI.exe

"LogonUI.exe" /flags:0x1

Network

N/A

Files

memory/2292-0-0x0000000000110000-0x000000000011E000-memory.dmp

memory/2292-2-0x0000000000120000-0x0000000000127000-memory.dmp

memory/2292-3-0x0000000001180000-0x00000000011A2000-memory.dmp

memory/2732-5-0x0000000002D90000-0x0000000002D91000-memory.dmp

memory/1892-6-0x0000000002B30000-0x0000000002B31000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-07 23:21

Reported

2024-04-07 23:24

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe"

Signatures

N/A

Processes

C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\e6195ab2ae4670896da889cea7b34fbf_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 130.118.77.104.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 198.111.78.13.in-addr.arpa udp

Files

N/A