Malware Analysis Report

2025-01-18 12:27

Sample ID 240831-bzszcsydlk
Target 7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe
SHA256 7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce
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

7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce

Threat Level: Known bad

The file 7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe was found to be: Known bad.

Malicious Activity Summary

formbook bi05 discovery rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

AutoIT Executable

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 01:35

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

2024-08-31 01:35

Reported

2024-08-31 01:38

Platform

win7-20240705-en

Max time kernel

148s

Max time network

150s

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 1856 set thread context of 3020 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 3020 set thread context of 1212 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 1640 set thread context of 1212 N/A C:\Windows\SysWOW64\mstsc.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\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mstsc.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\mstsc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1856 wrote to memory of 3020 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 1856 wrote to memory of 3020 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 1856 wrote to memory of 3020 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 1856 wrote to memory of 3020 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 1856 wrote to memory of 3020 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 1212 wrote to memory of 1640 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1212 wrote to memory of 1640 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1212 wrote to memory of 1640 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1212 wrote to memory of 1640 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\mstsc.exe
PID 1640 wrote to memory of 756 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 756 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 756 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe
PID 1640 wrote to memory of 756 N/A C:\Windows\SysWOW64\mstsc.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe

"C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe"

C:\Windows\SysWOW64\mstsc.exe

"C:\Windows\SysWOW64\mstsc.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.uckyheart.xyz udp
US 8.8.8.8:53 www.isualquotations.xyz udp
US 8.8.8.8:53 www.istinctcsolutions.net udp
US 8.8.8.8:53 www.panish-classes-87877.bond udp
US 8.8.8.8:53 www.ucknowgames.info udp

Files

memory/1856-10-0x00000000007D0000-0x00000000007D4000-memory.dmp

memory/3020-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3020-12-0x0000000000700000-0x0000000000A03000-memory.dmp

memory/3020-16-0x00000000001D0000-0x00000000001E4000-memory.dmp

memory/1212-15-0x0000000003EC0000-0x00000000040C0000-memory.dmp

memory/1212-17-0x0000000004D90000-0x0000000004EE5000-memory.dmp

memory/3020-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1640-18-0x0000000000DA0000-0x0000000000EA4000-memory.dmp

memory/1640-19-0x0000000000DA0000-0x0000000000EA4000-memory.dmp

memory/1640-20-0x00000000000C0000-0x00000000000EF000-memory.dmp

memory/1212-21-0x0000000004D90000-0x0000000004EE5000-memory.dmp

memory/1212-27-0x0000000004550000-0x00000000045E7000-memory.dmp

memory/1212-28-0x0000000004550000-0x00000000045E7000-memory.dmp

memory/1212-30-0x0000000004550000-0x00000000045E7000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 01:35

Reported

2024-08-31 01:38

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

147s

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 1328 set thread context of 4904 N/A C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe C:\Windows\SysWOW64\svchost.exe
PID 4904 set thread context of 3388 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 4904 set thread context of 3388 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 2808 set thread context of 3388 N/A C:\Windows\SysWOW64\mstsc.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\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\mstsc.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.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
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\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\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.exe N/A
N/A N/A C:\Windows\SysWOW64\mstsc.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: 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\mstsc.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: 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

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\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe

"C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\7d58c8bd03c166d6a74bcec471538b4803d1ca9aa9d32f5a5286dd5aafea62ce.exe"

C:\Windows\SysWOW64\autoconv.exe

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

C:\Windows\SysWOW64\mstsc.exe

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

C:\Windows\SysWOW64\cmd.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 www.ashion247.shop udp
US 8.8.8.8:53 www.mail-marketing-91020.bond udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 www.sjin.info udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.hisismylguana.xyz 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
US 8.8.8.8:53 www.hyma.cyou udp
US 8.8.8.8:53 www.ruises-treatment-93183.bond udp

Files

memory/1328-10-0x0000000001590000-0x0000000001594000-memory.dmp

memory/4904-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4904-12-0x0000000001500000-0x000000000184A000-memory.dmp

memory/3388-16-0x0000000008E80000-0x000000000900F000-memory.dmp

memory/4904-15-0x0000000001870000-0x0000000001884000-memory.dmp

memory/4904-14-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3388-20-0x000000000AA90000-0x000000000AB58000-memory.dmp

memory/4904-19-0x00000000019B0000-0x00000000019C4000-memory.dmp

memory/4904-18-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2808-21-0x0000000000050000-0x000000000018A000-memory.dmp

memory/3388-23-0x0000000008E80000-0x000000000900F000-memory.dmp

memory/2808-24-0x0000000000050000-0x000000000018A000-memory.dmp

memory/2808-25-0x0000000000CB0000-0x0000000000CDF000-memory.dmp

memory/3388-26-0x000000000AA90000-0x000000000AB58000-memory.dmp

memory/3388-29-0x000000000ACE0000-0x000000000AD86000-memory.dmp

memory/3388-30-0x000000000ACE0000-0x000000000AD86000-memory.dmp

memory/3388-32-0x000000000ACE0000-0x000000000AD86000-memory.dmp