Malware Analysis Report

2025-01-18 12:33

Sample ID 240901-eavcns1djh
Target 4847acf64d3432d3ec137f4c713f34fb1f36c9da8ba7782246dc9502d4a7e00e
SHA256 4847acf64d3432d3ec137f4c713f34fb1f36c9da8ba7782246dc9502d4a7e00e
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: 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

4847acf64d3432d3ec137f4c713f34fb1f36c9da8ba7782246dc9502d4a7e00e

Threat Level: Known bad

The file 4847acf64d3432d3ec137f4c713f34fb1f36c9da8ba7782246dc9502d4a7e00e 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

Program crash

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Suspicious use of FindShellTrayWindow

Suspicious behavior: MapViewOfSection

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 03:44

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: behavioral1

Detonation Overview

Submitted

2024-09-01 03:44

Reported

2024-09-01 03:47

Platform

win7-20240705-en

Max time kernel

141s

Max time network

120s

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2572 set thread context of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 2536 set thread context of 1256 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE

Program crash

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

System Location Discovery: System Language Discovery

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.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

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

Suspicious use of FindShellTrayWindow

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe N/A
N/A N/A C:\Windows\Explorer.EXE N/A
N/A N/A C:\Windows\Explorer.EXE N/A

Suspicious use of SendNotifyMessage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2572 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 2572 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 2572 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 2572 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 2572 wrote to memory of 2536 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 1256 wrote to memory of 2792 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\msiexec.exe
PID 2792 wrote to memory of 2024 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2792 wrote to memory of 2024 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2792 wrote to memory of 2024 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe
PID 2792 wrote to memory of 2024 N/A C:\Windows\SysWOW64\msiexec.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe

"C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe"

C:\Windows\SysWOW64\msiexec.exe

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

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2792 -s 268

Network

N/A

Files

memory/2572-11-0x00000000000C0000-0x00000000000C4000-memory.dmp

memory/2536-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2536-13-0x0000000000940000-0x0000000000C43000-memory.dmp

memory/2536-17-0x00000000001E0000-0x00000000001F4000-memory.dmp

memory/2536-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1256-18-0x0000000006940000-0x0000000006AAB000-memory.dmp

memory/2792-20-0x00000000009A0000-0x00000000009B4000-memory.dmp

memory/2792-19-0x00000000009A0000-0x00000000009B4000-memory.dmp

memory/2792-22-0x00000000009A0000-0x00000000009B4000-memory.dmp

memory/1256-24-0x0000000006940000-0x0000000006AAB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 03:44

Reported

2024-09-01 03:47

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe"

Signatures

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Users\Admin\AppData\Local\Temp\Updated SOA.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\Updated SOA.exe N/A

Suspicious behavior: MapViewOfSection

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

Suspicious use of FindShellTrayWindow

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

Suspicious use of SendNotifyMessage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 876 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 876 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe
PID 876 wrote to memory of 4740 N/A C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe C:\Windows\SysWOW64\svchost.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe

"C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\Updated SOA.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 876 -ip 876

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 876 -s 692

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 24.139.73.23.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 26.35.223.20.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 10.28.171.150.in-addr.arpa udp

Files

memory/876-11-0x00000000021D0000-0x00000000021D4000-memory.dmp