Malware Analysis Report

2025-08-10 22:11

Sample ID 231011-svvqtshe35
Target Invoice#23615B001.exe
SHA256 02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec
Tags
formbook sn26 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

02971b038e3224fb89a5aa824cd4388ab3108e86571312d127e32b6a59b1b3ec

Threat Level: Known bad

The file Invoice#23615B001.exe was found to be: Known bad.

Malicious Activity Summary

formbook sn26 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Enumerates system info in registry

Suspicious behavior: GetForegroundWindowSpam

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2023-10-11 15:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-10-11 15:27

Reported

2023-10-12 05:28

Platform

win7-20230831-en

Max time kernel

119s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3044 set thread context of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3044 wrote to memory of 2996 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2996 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\WerFault.exe
PID 2996 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\WerFault.exe
PID 2996 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\WerFault.exe
PID 2996 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"{path}"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 36

Network

N/A

Files

memory/3044-0-0x0000000074310000-0x00000000749FE000-memory.dmp

memory/3044-1-0x0000000000FE0000-0x0000000001086000-memory.dmp

memory/3044-2-0x0000000004970000-0x00000000049B0000-memory.dmp

memory/3044-3-0x0000000000420000-0x000000000042C000-memory.dmp

memory/3044-4-0x0000000074310000-0x00000000749FE000-memory.dmp

memory/3044-5-0x0000000004970000-0x00000000049B0000-memory.dmp

memory/3044-6-0x0000000004880000-0x000000000491A000-memory.dmp

memory/3044-7-0x0000000004920000-0x0000000004968000-memory.dmp

memory/2996-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2996-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2996-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2996-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3044-14-0x0000000074310000-0x00000000749FE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2023-10-11 15:27

Reported

2023-10-12 05:27

Platform

win10v2004-20230915-en

Max time kernel

150s

Max time network

152s

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4752 set thread context of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 2272 set thread context of 3152 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Windows\Explorer.EXE
PID 2160 set thread context of 3152 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\Explorer.EXE

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier C:\Windows\SysWOW64\chkdsk.exe N/A

Suspicious behavior: GetForegroundWindowSpam

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

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\chkdsk.exe N/A

Suspicious use of UnmapMainImage

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4752 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4752 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4752 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4752 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4752 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 4752 wrote to memory of 2272 N/A C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe
PID 3152 wrote to memory of 2160 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 3152 wrote to memory of 2160 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 3152 wrote to memory of 2160 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\chkdsk.exe
PID 2160 wrote to memory of 5100 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe
PID 2160 wrote to memory of 5100 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe
PID 2160 wrote to memory of 5100 N/A C:\Windows\SysWOW64\chkdsk.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe"

C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.exe

"{path}"

C:\Windows\SysWOW64\chkdsk.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\Invoice#23615B001.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 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 254.7.248.8.in-addr.arpa udp
US 8.8.8.8:53 146.78.124.51.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 39.142.81.104.in-addr.arpa udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 2.136.104.51.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 254.210.247.8.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 www.wlxzjlny.cfd udp
US 8.8.8.8:53 www.hawskio26.click udp
US 172.96.186.176:80 www.hawskio26.click tcp
US 8.8.8.8:53 176.186.96.172.in-addr.arpa udp
US 8.8.8.8:53 10.173.189.20.in-addr.arpa udp

Files

memory/4752-0-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/4752-1-0x0000000000550000-0x00000000005F6000-memory.dmp

memory/4752-2-0x0000000005000000-0x000000000509C000-memory.dmp

memory/4752-3-0x0000000005650000-0x0000000005BF4000-memory.dmp

memory/4752-4-0x00000000050A0000-0x0000000005132000-memory.dmp

memory/4752-5-0x0000000005200000-0x0000000005210000-memory.dmp

memory/4752-6-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

memory/4752-7-0x00000000051A0000-0x00000000051F6000-memory.dmp

memory/4752-8-0x0000000005C00000-0x0000000005F54000-memory.dmp

memory/4752-9-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/4752-10-0x0000000005200000-0x0000000005210000-memory.dmp

memory/4752-11-0x00000000083A0000-0x00000000083AC000-memory.dmp

memory/4752-12-0x0000000000F10000-0x0000000000FAA000-memory.dmp

memory/4752-13-0x0000000000FB0000-0x0000000000FF8000-memory.dmp

memory/2272-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4752-16-0x0000000074910000-0x00000000750C0000-memory.dmp

memory/2272-17-0x00000000015D0000-0x000000000191A000-memory.dmp

memory/2272-20-0x0000000001570000-0x0000000001585000-memory.dmp

memory/2272-19-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3152-21-0x0000000007670000-0x0000000007766000-memory.dmp

memory/2160-22-0x00000000008F0000-0x00000000008FA000-memory.dmp

memory/2160-23-0x00000000008F0000-0x00000000008FA000-memory.dmp

memory/2160-24-0x0000000000C00000-0x0000000000C2F000-memory.dmp

memory/2160-25-0x0000000001430000-0x000000000177A000-memory.dmp

memory/2160-26-0x0000000000C00000-0x0000000000C2F000-memory.dmp

memory/3152-27-0x0000000007670000-0x0000000007766000-memory.dmp

memory/2160-29-0x00000000012B0000-0x0000000001344000-memory.dmp

memory/3152-30-0x0000000008B10000-0x0000000008C72000-memory.dmp

memory/3152-31-0x0000000008B10000-0x0000000008C72000-memory.dmp

memory/3152-33-0x0000000008B10000-0x0000000008C72000-memory.dmp