Malware Analysis Report

2025-01-18 12:33

Sample ID 240831-z2e3aawble
Target 42f46f9dccecd88e438399b21d2e65df9168e5e09106ba44c1f745053ec1005e
SHA256 42f46f9dccecd88e438399b21d2e65df9168e5e09106ba44c1f745053ec1005e
Tags
formbook s2wt 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

42f46f9dccecd88e438399b21d2e65df9168e5e09106ba44c1f745053ec1005e

Threat Level: Known bad

The file 42f46f9dccecd88e438399b21d2e65df9168e5e09106ba44c1f745053ec1005e was found to be: Known bad.

Malicious Activity Summary

formbook s2wt discovery rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 21:12

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 21:12

Reported

2024-08-31 21:15

Platform

win7-20240705-en

Max time kernel

121s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.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\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 2360 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe"

C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe"

Network

N/A

Files

memory/2360-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

memory/2360-1-0x0000000000070000-0x0000000000106000-memory.dmp

memory/2360-2-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/2360-3-0x0000000000360000-0x000000000036E000-memory.dmp

memory/2360-4-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

memory/2360-5-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/2360-6-0x0000000004370000-0x00000000043C8000-memory.dmp

memory/2500-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2500-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2500-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2500-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2360-13-0x0000000074A70000-0x000000007515E000-memory.dmp

memory/2500-14-0x0000000000A00000-0x0000000000D03000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 21:12

Reported

2024-08-31 21:15

Platform

win10v2004-20240802-en

Max time kernel

140s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.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\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4316 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 752 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 5068 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 5068 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 5068 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 4572 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 4572 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 4572 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 4572 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 4572 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe
PID 4316 wrote to memory of 4572 N/A C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe"

C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe"

C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe"

C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe

"C:\Users\Admin\AppData\Local\Temp\8195d90a65592855ca10dc169e75e02dd055f91462c9993d18c879ee8431cfbf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 65.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/4316-0-0x0000000074FDE000-0x0000000074FDF000-memory.dmp

memory/4316-1-0x0000000000EF0000-0x0000000000F86000-memory.dmp

memory/4316-2-0x0000000008390000-0x0000000008934000-memory.dmp

memory/4316-3-0x0000000007E80000-0x0000000007F12000-memory.dmp

memory/4316-4-0x0000000003250000-0x000000000325A000-memory.dmp

memory/4316-5-0x0000000074FD0000-0x0000000075780000-memory.dmp

memory/4316-6-0x00000000080E0000-0x00000000080EE000-memory.dmp

memory/4316-7-0x0000000074FDE000-0x0000000074FDF000-memory.dmp

memory/4316-8-0x0000000074FD0000-0x0000000075780000-memory.dmp

memory/4316-9-0x00000000094D0000-0x000000000956C000-memory.dmp

memory/4316-10-0x0000000009570000-0x00000000095C8000-memory.dmp

memory/4572-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4316-13-0x0000000074FD0000-0x0000000075780000-memory.dmp

memory/4572-14-0x0000000001390000-0x00000000016DA000-memory.dmp