Malware Analysis Report

2025-01-18 12:31

Sample ID 240901-bzz3nsxdnj
Target 5c9ae21073af32232996e56ea997bd90f612831cc82809260bc47d83cfe291f6
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: 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

5c9ae21073af32232996e56ea997bd90f612831cc82809260bc47d83cfe291f6

Threat Level: Known bad

The file 5c9ae21073af32232996e56ea997bd90f612831cc82809260bc47d83cfe291f6 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

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 01:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 01:35

Reported

2024-09-01 01:39

Platform

win7-20240708-en

Max time kernel

117s

Max time network

122s

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 behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1264 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1264 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1264 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1264 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1264 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1264 wrote to memory of 2764 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1264 wrote to memory of 2764 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:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe

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

Network

N/A

Files

memory/1264-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

memory/1264-1-0x0000000001370000-0x000000000145E000-memory.dmp

memory/1264-2-0x0000000074C90000-0x000000007537E000-memory.dmp

memory/1264-3-0x0000000000910000-0x000000000091E000-memory.dmp

memory/1264-4-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

memory/1264-5-0x0000000074C90000-0x000000007537E000-memory.dmp

memory/1264-6-0x00000000049C0000-0x0000000004A18000-memory.dmp

memory/2764-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2764-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2764-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2764-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1264-14-0x0000000074C90000-0x000000007537E000-memory.dmp

memory/2764-15-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 01:35

Reported

2024-09-01 01:38

Platform

win10v2004-20240802-en

Max time kernel

135s

Max time network

149s

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 1888 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1888 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1888 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1888 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1888 wrote to memory of 2240 N/A C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe C:\Users\Admin\AppData\Local\Temp\8b10a744ecc77aa0c6ed8596d46513a3de252356f9a1b52cc7c6e8ed459c36b9.exe
PID 1888 wrote to memory of 2240 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:\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 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 45.19.74.20.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.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/1888-0-0x000000007528E000-0x000000007528F000-memory.dmp

memory/1888-1-0x0000000000DD0000-0x0000000000EBE000-memory.dmp

memory/1888-2-0x0000000008260000-0x0000000008804000-memory.dmp

memory/1888-3-0x0000000007D90000-0x0000000007E22000-memory.dmp

memory/1888-4-0x00000000031A0000-0x00000000031AA000-memory.dmp

memory/1888-5-0x0000000075280000-0x0000000075A30000-memory.dmp

memory/1888-6-0x0000000008010000-0x000000000801E000-memory.dmp

memory/1888-7-0x000000007528E000-0x000000007528F000-memory.dmp

memory/1888-8-0x0000000075280000-0x0000000075A30000-memory.dmp

memory/1888-9-0x0000000009260000-0x00000000092FC000-memory.dmp

memory/1888-10-0x0000000009350000-0x00000000093A8000-memory.dmp

memory/2240-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1888-13-0x0000000075280000-0x0000000075A30000-memory.dmp

memory/2240-14-0x00000000011A0000-0x00000000014EA000-memory.dmp