Malware Analysis Report

2025-01-18 12:25

Sample ID 240831-btrjcaxfme
Target 594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe
SHA256 594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730
Tags
formbook bi05 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

594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730

Threat Level: Known bad

The file 594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe was found to be: Known bad.

Malicious Activity Summary

formbook bi05 discovery rat spyware stealer trojan

Formbook

Formbook payload

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Modifies registry class

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 01:26

Signatures

AutoIT Executable

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

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 01:26

Reported

2024-08-31 01:29

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

136s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4260 set thread context of 3288 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 3288 set thread context of 3516 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 3288 set thread context of 3516 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 708 set thread context of 3516 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\Explorer.EXE

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\msiexec.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ C:\Windows\Explorer.EXE N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\svchost.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A
N/A N/A C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\svchost.exe N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeShutdownPrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeCreatePagefilePrivilege N/A C:\Windows\Explorer.EXE N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\msiexec.exe N/A

Suspicious use of UnmapMainImage

Description Indicator Process Target
N/A N/A C:\Windows\Explorer.EXE N/A

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe

"C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe"

C:\Windows\SysWOW64\autofmt.exe

"C:\Windows\SysWOW64\autofmt.exe"

C:\Windows\SysWOW64\autofmt.exe

"C:\Windows\SysWOW64\autofmt.exe"

C:\Windows\SysWOW64\autofmt.exe

"C:\Windows\SysWOW64\autofmt.exe"

C:\Windows\SysWOW64\autofmt.exe

"C:\Windows\SysWOW64\autofmt.exe"

C:\Windows\SysWOW64\autofmt.exe

"C:\Windows\SysWOW64\autofmt.exe"

C:\Windows\SysWOW64\msiexec.exe

"C:\Windows\SysWOW64\msiexec.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\SysWOW64\svchost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 www.14ra567dp.autos udp
US 8.8.8.8:53 www.oudya.shop udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 www.ridgenexttechnologies.partners udp
US 8.8.8.8:53 14.227.111.52.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 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.28.171.150.in-addr.arpa udp
US 8.8.8.8:53 www.hnbakery.shop udp
US 8.8.8.8:53 www.sjin.info udp

Files

memory/4260-11-0x00000000028F0000-0x00000000028F4000-memory.dmp

memory/3288-12-0x0000000000450000-0x000000000047F000-memory.dmp

memory/3288-15-0x0000000001000000-0x000000000134A000-memory.dmp

memory/3288-17-0x0000000000780000-0x0000000000794000-memory.dmp

memory/3288-16-0x0000000000450000-0x000000000047F000-memory.dmp

memory/3516-18-0x0000000006E40000-0x0000000006F1D000-memory.dmp

memory/3516-22-0x0000000008990000-0x0000000008B39000-memory.dmp

memory/3288-21-0x0000000002CA0000-0x0000000002CB4000-memory.dmp

memory/3288-20-0x0000000000450000-0x000000000047F000-memory.dmp

memory/3516-23-0x0000000006E40000-0x0000000006F1D000-memory.dmp

memory/708-24-0x00000000008A0000-0x00000000008B2000-memory.dmp

memory/708-28-0x00000000008A0000-0x00000000008B2000-memory.dmp

memory/708-26-0x00000000008A0000-0x00000000008B2000-memory.dmp

memory/708-29-0x0000000000710000-0x000000000073F000-memory.dmp

memory/708-30-0x0000000002890000-0x0000000002BDA000-memory.dmp

memory/708-31-0x0000000000710000-0x000000000073F000-memory.dmp

memory/3516-32-0x0000000008990000-0x0000000008B39000-memory.dmp

memory/708-34-0x00000000026D0000-0x0000000002763000-memory.dmp

memory/3516-36-0x00000000090C0000-0x00000000091BC000-memory.dmp

memory/3516-37-0x00000000090C0000-0x00000000091BC000-memory.dmp

memory/3516-39-0x00000000090C0000-0x00000000091BC000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 01:26

Reported

2024-08-31 01:29

Platform

win7-20240704-en

Max time kernel

148s

Max time network

148s

Command Line

C:\Windows\Explorer.EXE

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2540 set thread context of 2096 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 2096 set thread context of 1188 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 2284 set thread context of 1188 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE

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\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\svchost.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\svchost.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\svchost.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2540 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 2540 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 2540 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 2540 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 2540 wrote to memory of 2096 N/A C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe C:\Windows\SysWOW64\svchost.exe
PID 1188 wrote to memory of 2284 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1188 wrote to memory of 2284 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1188 wrote to memory of 2284 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 1188 wrote to memory of 2284 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\svchost.exe
PID 2284 wrote to memory of 2832 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe
PID 2284 wrote to memory of 2832 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe
PID 2284 wrote to memory of 2832 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe
PID 2284 wrote to memory of 2832 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe

"C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\594d99b2f426271d893550e00f7931e2b25ec0179e0e52887a77e3ade825b730.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Windows\SysWOW64\svchost.exe"

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Windows\SysWOW64\svchost.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 www.hisismylguana.xyz udp
US 8.8.8.8:53 www.7winvn.net udp
US 8.8.8.8:53 www.x-scissor-lifts-glob-512.today udp
US 8.8.8.8:53 www.ata-protection-30362.bond udp
US 8.8.8.8:53 www.mail-marketing-91020.bond udp

Files

memory/2540-11-0x00000000002C0000-0x00000000002C4000-memory.dmp

memory/2096-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2096-13-0x0000000000930000-0x0000000000C33000-memory.dmp

memory/2096-16-0x00000000001C0000-0x00000000001D4000-memory.dmp

memory/2096-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1188-18-0x0000000005120000-0x0000000005225000-memory.dmp

memory/1188-17-0x0000000000010000-0x0000000000020000-memory.dmp

memory/2284-19-0x0000000000F80000-0x0000000000F88000-memory.dmp

memory/2284-21-0x0000000000F80000-0x0000000000F88000-memory.dmp

memory/2284-22-0x00000000000C0000-0x00000000000EF000-memory.dmp

memory/1188-23-0x0000000005120000-0x0000000005225000-memory.dmp

memory/1188-28-0x0000000006980000-0x0000000006AD6000-memory.dmp

memory/1188-29-0x0000000006980000-0x0000000006AD6000-memory.dmp

memory/1188-31-0x0000000006980000-0x0000000006AD6000-memory.dmp