Malware Analysis Report

2025-01-18 12:36

Sample ID 240901-aw81qsvbnj
Target abf416a9f8f2da1f9bd6e44a9369ae21.zip
SHA256 5c9ae21073af32232996e56ea997bd90f612831cc82809260bc47d83cfe291f6
Tags
formbook cnp0 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: 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

5c9ae21073af32232996e56ea997bd90f612831cc82809260bc47d83cfe291f6

Threat Level: Known bad

The file abf416a9f8f2da1f9bd6e44a9369ae21.zip was found to be: Known bad.

Malicious Activity Summary

formbook cnp0 discovery rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 00:34

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 00:34

Reported

2024-09-01 00:38

Platform

win10v2004-20240802-en

Max time kernel

136s

Max time network

130s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.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\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2132 wrote to memory of 924 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2132 wrote to memory of 924 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2132 wrote to memory of 924 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2132 wrote to memory of 924 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2132 wrote to memory of 924 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2132 wrote to memory of 924 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe

"C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.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 --field-trial-handle=2264,i,8231329449558834090,4540802069600791165,262144 --variations-seed-version --mojo-platform-channel-handle=1436 /prefetch:8

C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe

"C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 49.192.11.51.in-addr.arpa udp

Files

memory/2132-0-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

memory/2132-1-0x0000000000270000-0x000000000035E000-memory.dmp

memory/2132-2-0x0000000007750000-0x0000000007CF4000-memory.dmp

memory/2132-3-0x0000000007240000-0x00000000072D2000-memory.dmp

memory/2132-4-0x00000000027E0000-0x00000000027EA000-memory.dmp

memory/2132-5-0x0000000074F00000-0x00000000756B0000-memory.dmp

memory/2132-6-0x0000000007550000-0x000000000755E000-memory.dmp

memory/2132-7-0x0000000074F0E000-0x0000000074F0F000-memory.dmp

memory/2132-8-0x0000000074F00000-0x00000000756B0000-memory.dmp

memory/2132-9-0x00000000086E0000-0x000000000877C000-memory.dmp

memory/2132-10-0x0000000008690000-0x00000000086E8000-memory.dmp

memory/924-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2132-13-0x0000000074F00000-0x00000000756B0000-memory.dmp

memory/924-14-0x0000000001180000-0x00000000014CA000-memory.dmp

memory/924-15-0x0000000001180000-0x00000000014CA000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 00:34

Reported

2024-09-01 00:37

Platform

win7-20240729-en

Max time kernel

120s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.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\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 2408 wrote to memory of 3036 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 3036 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Windows\SysWOW64\WerFault.exe
PID 3036 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Windows\SysWOW64\WerFault.exe
PID 3036 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Windows\SysWOW64\WerFault.exe
PID 3036 wrote to memory of 2948 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe

"C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe"

C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe

"C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 36

Network

N/A

Files

memory/2408-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

memory/2408-1-0x0000000000A40000-0x0000000000B2E000-memory.dmp

memory/2408-2-0x00000000745A0000-0x0000000074C8E000-memory.dmp

memory/2408-3-0x0000000000370000-0x000000000037E000-memory.dmp

memory/2408-4-0x00000000745AE000-0x00000000745AF000-memory.dmp

memory/2408-5-0x00000000745A0000-0x0000000074C8E000-memory.dmp

memory/2408-6-0x0000000004900000-0x0000000004958000-memory.dmp

memory/3036-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3036-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3036-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3036-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2408-13-0x00000000745A0000-0x0000000074C8E000-memory.dmp