Malware Analysis Report

2025-01-18 12:39

Sample ID 240403-we6d6sgf29
Target a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118
SHA256 1944e3560e3f0e997900d664726e2b3bd4cc3991000bbaf9888a92ff41e62c08
Tags
formbook mknl rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

1944e3560e3f0e997900d664726e2b3bd4cc3991000bbaf9888a92ff41e62c08

Threat Level: Known bad

The file a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

formbook mknl rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-03 17:51

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-03 17:51

Reported

2024-04-03 17:53

Platform

win10v2004-20240226-en

Max time kernel

144s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Processes

C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe"

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3804 --field-trial-handle=2264,i,15001568551143786084,90255922961447677,262144 --variations-seed-version /prefetch:8

C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 38.117.19.2.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 0.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 93.65.42.20.in-addr.arpa udp

Files

memory/2172-0-0x0000000075290000-0x0000000075A40000-memory.dmp

memory/2172-1-0x0000000000060000-0x00000000000F2000-memory.dmp

memory/2172-2-0x0000000005110000-0x00000000056B4000-memory.dmp

memory/2172-3-0x0000000004A90000-0x0000000004B22000-memory.dmp

memory/2172-4-0x0000000004BF0000-0x0000000004C00000-memory.dmp

memory/2172-5-0x0000000004B40000-0x0000000004B4A000-memory.dmp

memory/2172-6-0x0000000006360000-0x000000000636A000-memory.dmp

memory/2172-7-0x0000000075290000-0x0000000075A40000-memory.dmp

memory/2172-8-0x0000000004BF0000-0x0000000004C00000-memory.dmp

memory/2172-9-0x0000000006690000-0x000000000672C000-memory.dmp

memory/2172-10-0x0000000006820000-0x000000000689E000-memory.dmp

memory/2384-11-0x0000000000400000-0x000000000042E000-memory.dmp

memory/2384-13-0x0000000001390000-0x00000000016DA000-memory.dmp

memory/2172-14-0x0000000075290000-0x0000000075A40000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-03 17:51

Reported

2024-04-03 17:53

Platform

win7-20240221-en

Max time kernel

122s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe
PID 2020 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe

Processes

C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\a29902cf02373bfc6e3c93f122ae6455_JaffaCakes118.exe"

Network

N/A

Files

memory/2020-1-0x0000000074330000-0x0000000074A1E000-memory.dmp

memory/2020-0-0x0000000001220000-0x00000000012B2000-memory.dmp

memory/2020-2-0x0000000004BE0000-0x0000000004C20000-memory.dmp

memory/2020-3-0x00000000004F0000-0x00000000004FA000-memory.dmp

memory/2020-4-0x0000000074330000-0x0000000074A1E000-memory.dmp

memory/2020-5-0x0000000004BE0000-0x0000000004C20000-memory.dmp

memory/2020-6-0x00000000053F0000-0x000000000546E000-memory.dmp

memory/2396-7-0x0000000000400000-0x000000000042E000-memory.dmp

memory/2396-8-0x0000000000400000-0x000000000042E000-memory.dmp

memory/2396-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2396-11-0x0000000000400000-0x000000000042E000-memory.dmp

memory/2020-12-0x0000000074330000-0x0000000074A1E000-memory.dmp

memory/2396-13-0x0000000000AE0000-0x0000000000DE3000-memory.dmp