Malware Analysis Report

2025-01-18 12:40

Sample ID 240402-q3tsdscc32
Target 8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118
SHA256 370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e
Tags
formbook u1bs rat spyware stealer trojan
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

370b7d8656ddabeb6669b24da32cd047ebbd977efce6047bd26e8326a98c768e

Threat Level: Known bad

The file 8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook u1bs rat spyware stealer trojan

Formbook

Formbook payload

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Creates scheduled task(s)

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-02 13:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 13:47

Reported

2024-04-02 13:50

Platform

win7-20240319-en

Max time kernel

119s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2164 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2164 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2164 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2164 wrote to memory of 2428 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 2164 wrote to memory of 1976 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FlmzgpptIOIuw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD5E5.tmp"

C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe"

Network

N/A

Files

memory/2164-0-0x0000000001100000-0x0000000001184000-memory.dmp

memory/2164-1-0x0000000074A30000-0x000000007511E000-memory.dmp

memory/2164-2-0x0000000000630000-0x0000000000670000-memory.dmp

memory/2164-3-0x0000000000290000-0x000000000029E000-memory.dmp

memory/2164-4-0x0000000074A30000-0x000000007511E000-memory.dmp

memory/2164-5-0x0000000000630000-0x0000000000670000-memory.dmp

memory/2164-6-0x00000000045E0000-0x0000000004638000-memory.dmp

memory/1976-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1976-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1976-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1976-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2164-17-0x0000000074A30000-0x000000007511E000-memory.dmp

memory/1976-18-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 13:47

Reported

2024-04-02 13:50

Platform

win10v2004-20240226-en

Max time kernel

146s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe N/A

Enumerates physical storage devices

Creates scheduled task(s)

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4996 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 4996 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 4996 wrote to memory of 4496 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 4996 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 4996 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 4996 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 4996 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 4996 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe
PID 4996 wrote to memory of 2040 N/A C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FlmzgpptIOIuw" /XML "C:\Users\Admin\AppData\Local\Temp\tmp191.tmp"

C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\8e3ffb0282c016ce500a81a4e7a5f13e_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 219.135.221.88.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 41.110.86.104.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 40.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 42.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 92.16.208.104.in-addr.arpa udp

Files

memory/4996-0-0x0000000000E70000-0x0000000000EF4000-memory.dmp

memory/4996-1-0x0000000075220000-0x00000000759D0000-memory.dmp

memory/4996-2-0x00000000082A0000-0x0000000008844000-memory.dmp

memory/4996-3-0x0000000007D90000-0x0000000007E22000-memory.dmp

memory/4996-4-0x0000000007D00000-0x0000000007D10000-memory.dmp

memory/4996-5-0x0000000007F30000-0x0000000007F3A000-memory.dmp

memory/4996-6-0x0000000009180000-0x000000000918E000-memory.dmp

memory/4996-7-0x0000000075220000-0x00000000759D0000-memory.dmp

memory/4996-8-0x0000000007D00000-0x0000000007D10000-memory.dmp

memory/4996-9-0x000000000CE30000-0x000000000CECC000-memory.dmp

memory/4996-10-0x000000000CF20000-0x000000000CF78000-memory.dmp

memory/2040-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4996-18-0x0000000075220000-0x00000000759D0000-memory.dmp

memory/2040-19-0x0000000001900000-0x0000000001C4A000-memory.dmp