Malware Analysis Report

2025-04-14 08:32

Sample ID 240921-vmwn9stbrg
Target f0420dfdd25909430646c7655e25415e_JaffaCakes118
SHA256 a9a23a0d9df00e223a3c3b5c9ab750ae576b3217752e7a054435291b4d10a970
Tags
formbook cza discovery 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

a9a23a0d9df00e223a3c3b5c9ab750ae576b3217752e7a054435291b4d10a970

Threat Level: Known bad

The file f0420dfdd25909430646c7655e25415e_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook cza discovery rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-21 17:06

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-21 17:06

Reported

2024-09-21 17:09

Platform

win7-20240903-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe"

Network

N/A

Files

memory/1812-3-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2180-2-0x00000000002C0000-0x00000000002C1000-memory.dmp

memory/2180-4-0x0000000000400000-0x00000000004CD000-memory.dmp

memory/2180-1-0x00000000002A0000-0x00000000002A8000-memory.dmp

memory/2180-0-0x0000000000220000-0x0000000000221000-memory.dmp

memory/1812-6-0x0000000000930000-0x0000000000C33000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-21 17:06

Reported

2024-09-21 17:09

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe N/A

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\f0420dfdd25909430646c7655e25415e_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp

Files

memory/4960-0-0x0000000002250000-0x0000000002251000-memory.dmp

memory/4960-1-0x00000000022B0000-0x00000000022B8000-memory.dmp

memory/4960-2-0x00000000022D0000-0x00000000022D1000-memory.dmp

memory/4452-3-0x0000000000400000-0x000000000042D000-memory.dmp

memory/4960-4-0x0000000000400000-0x00000000004CD000-memory.dmp