Malware Analysis Report

2025-01-18 12:39

Sample ID 240404-ngaraadd9x
Target b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118
SHA256 1856475ff71d7db6386ed4818b0cdb575f2cabedeaf7231c6b8148259c184475
Tags
formbook cb2k 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

1856475ff71d7db6386ed4818b0cdb575f2cabedeaf7231c6b8148259c184475

Threat Level: Known bad

The file b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook cb2k rat spyware stealer trojan

Formbook

Formbook payload

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Creates scheduled task(s)

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-04 11:21

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-04 11:21

Reported

2024-04-04 11:24

Platform

win7-20240221-en

Max time kernel

118s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_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\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1100 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1100 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1100 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1100 wrote to memory of 2484 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 1100 wrote to memory of 2556 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gLKHNRIss" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1507.tmp"

C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe"

Network

N/A

Files

memory/1100-0-0x0000000000F50000-0x0000000000FDA000-memory.dmp

memory/1100-1-0x0000000074700000-0x0000000074DEE000-memory.dmp

memory/1100-2-0x0000000004860000-0x00000000048A0000-memory.dmp

memory/1100-3-0x0000000000510000-0x000000000051E000-memory.dmp

memory/1100-4-0x0000000074700000-0x0000000074DEE000-memory.dmp

memory/1100-5-0x0000000004860000-0x00000000048A0000-memory.dmp

memory/1100-6-0x00000000048A0000-0x00000000048F8000-memory.dmp

memory/2556-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2556-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2556-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2556-18-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1100-19-0x0000000074700000-0x0000000074DEE000-memory.dmp

memory/2556-20-0x00000000008F0000-0x0000000000BF3000-memory.dmp

memory/2556-21-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-04 11:21

Reported

2024-04-04 11:24

Platform

win10v2004-20240226-en

Max time kernel

92s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_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-1-5-21-566096764-1992588923-1249862864-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_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 392 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 392 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 392 wrote to memory of 2592 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 392 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 392 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 392 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 392 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 392 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe
PID 392 wrote to memory of 4688 N/A C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gLKHNRIss" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC44A.tmp"

C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b6fbeb5b6ef2e8e43c6987781634d4c5_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 218.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 81.171.91.138.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/392-0-0x0000000000360000-0x00000000003EA000-memory.dmp

memory/392-1-0x0000000074680000-0x0000000074E30000-memory.dmp

memory/392-2-0x0000000005410000-0x00000000059B4000-memory.dmp

memory/392-3-0x0000000004D90000-0x0000000004E22000-memory.dmp

memory/392-4-0x0000000004F20000-0x0000000004F30000-memory.dmp

memory/392-5-0x0000000004E40000-0x0000000004E4A000-memory.dmp

memory/392-6-0x00000000052B0000-0x00000000052BE000-memory.dmp

memory/392-7-0x0000000074680000-0x0000000074E30000-memory.dmp

memory/392-8-0x0000000004F20000-0x0000000004F30000-memory.dmp

memory/392-9-0x0000000005BA0000-0x0000000005C3C000-memory.dmp

memory/392-10-0x0000000005B50000-0x0000000005BA8000-memory.dmp

memory/4688-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/392-18-0x0000000074680000-0x0000000074E30000-memory.dmp

memory/4688-19-0x0000000000F80000-0x00000000012CA000-memory.dmp

memory/4688-20-0x0000000000F80000-0x00000000012CA000-memory.dmp