Malware Analysis Report

2025-01-18 12:40

Sample ID 240402-nk8sgsge4w
Target 12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.zip
SHA256 494287b94d735d029f5882eb5a39577e43f0e0cac6cf44646a17c6bf1f690373
Tags
formbook ns03 rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

494287b94d735d029f5882eb5a39577e43f0e0cac6cf44646a17c6bf1f690373

Threat Level: Known bad

The file 12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.zip was found to be: Known bad.

Malicious Activity Summary

formbook ns03 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-02 11:28

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 11:28

Reported

2024-04-02 11:31

Platform

win7-20240221-en

Max time kernel

118s

Max time network

127s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2176 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2824 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2540 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2492 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2492 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2492 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2492 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 2176 wrote to memory of 2512 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Network

N/A

Files

memory/2176-1-0x0000000074BA0000-0x000000007528E000-memory.dmp

memory/2176-0-0x0000000000040000-0x00000000000DC000-memory.dmp

memory/2176-2-0x0000000004DF0000-0x0000000004E30000-memory.dmp

memory/2176-3-0x00000000003E0000-0x00000000003F4000-memory.dmp

memory/2176-4-0x0000000000530000-0x000000000053A000-memory.dmp

memory/2176-5-0x0000000000540000-0x000000000054C000-memory.dmp

memory/2176-6-0x0000000004F30000-0x0000000004FA6000-memory.dmp

memory/2512-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2512-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2512-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2512-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2176-14-0x0000000074BA0000-0x000000007528E000-memory.dmp

memory/2512-15-0x00000000009C0000-0x0000000000CC3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 11:28

Reported

2024-04-02 11:31

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

165s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4512 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 2312 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 3564 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 3564 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 3564 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 3564 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 3564 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4512 wrote to memory of 3564 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.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=1424 --field-trial-handle=2180,i,12780723798465539942,12010519452607841069,262144 --variations-seed-version /prefetch:8

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 24.66.18.2.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 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
NL 172.217.23.202:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 202.23.217.172.in-addr.arpa udp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/4512-0-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/4512-1-0x0000000000880000-0x000000000091C000-memory.dmp

memory/4512-2-0x00000000057E0000-0x0000000005D84000-memory.dmp

memory/4512-3-0x00000000052F0000-0x0000000005382000-memory.dmp

memory/4512-4-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/4512-5-0x0000000005450000-0x0000000005460000-memory.dmp

memory/4512-6-0x0000000005430000-0x000000000543A000-memory.dmp

memory/4512-7-0x0000000005450000-0x0000000005460000-memory.dmp

memory/4512-8-0x0000000000D00000-0x0000000000D14000-memory.dmp

memory/4512-9-0x0000000000D20000-0x0000000000D2A000-memory.dmp

memory/4512-10-0x0000000000D30000-0x0000000000D3C000-memory.dmp

memory/4512-11-0x0000000006F80000-0x0000000006FF6000-memory.dmp

memory/4512-12-0x0000000009610000-0x00000000096AC000-memory.dmp

memory/3564-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3564-14-0x00000000010B0000-0x00000000013FA000-memory.dmp

memory/4512-16-0x00000000751E0000-0x0000000075990000-memory.dmp