Malware Analysis Report

2025-01-18 12:24

Sample ID 240829-tzbdessgnp
Target 8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
SHA256 8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b
Tags
formbook d16h 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

8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b

Threat Level: Known bad

The file 8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe was found to be: Known bad.

Malicious Activity Summary

formbook d16h 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 AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-29 16:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-29 16:29

Reported

2024-08-29 16:31

Platform

win7-20240729-en

Max time kernel

16s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.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\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2388 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2808 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 2388 wrote to memory of 2812 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe"

C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe"

C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe"

Network

N/A

Files

memory/2388-0-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2388-1-0x00000000013A0000-0x0000000001452000-memory.dmp

memory/2388-2-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2388-3-0x00000000012D0000-0x0000000001374000-memory.dmp

memory/2388-4-0x0000000000510000-0x0000000000528000-memory.dmp

memory/2388-5-0x000000007496E000-0x000000007496F000-memory.dmp

memory/2388-6-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2388-7-0x0000000005240000-0x00000000052B6000-memory.dmp

memory/2812-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2812-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2812-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2812-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2388-13-0x0000000074960000-0x000000007504E000-memory.dmp

memory/2812-14-0x0000000000930000-0x0000000000C33000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-29 16:29

Reported

2024-08-29 16:31

Platform

win10v2004-20240802-en

Max time kernel

141s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.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\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4296 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 4296 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 4296 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 4296 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 4296 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe
PID 4296 wrote to memory of 1192 N/A C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

Processes

C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe"

C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe

"C:\Users\Admin\AppData\Local\Temp\8c92b39496a1f938d9c16ad3e1a7948b48923fd028e23a422c5bf8f0b7e1138b.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 34.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.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
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/4296-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

memory/4296-1-0x0000000000D00000-0x0000000000DB2000-memory.dmp

memory/4296-2-0x0000000005C70000-0x0000000006214000-memory.dmp

memory/4296-3-0x00000000057A0000-0x0000000005832000-memory.dmp

memory/4296-4-0x0000000005960000-0x000000000596A000-memory.dmp

memory/4296-5-0x00000000745D0000-0x0000000074D80000-memory.dmp

memory/4296-6-0x0000000006E90000-0x0000000006F34000-memory.dmp

memory/4296-7-0x0000000005AA0000-0x0000000005AB8000-memory.dmp

memory/4296-8-0x00000000745DE000-0x00000000745DF000-memory.dmp

memory/4296-9-0x00000000745D0000-0x0000000074D80000-memory.dmp

memory/4296-10-0x0000000006A20000-0x0000000006A96000-memory.dmp

memory/4296-11-0x00000000092A0000-0x000000000933C000-memory.dmp

memory/1192-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4296-14-0x00000000745D0000-0x0000000074D80000-memory.dmp

memory/1192-15-0x00000000012A0000-0x00000000015EA000-memory.dmp