Malware Analysis Report

2025-04-14 08:32

Sample ID 240923-rf6n4s1hpf
Target DHL documents_PDF.exe
SHA256 a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655
Tags
formbook b31a 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

a9ca3955156a843f095203a36d37f40d305926be366fbc1238e73e8590284655

Threat Level: Known bad

The file DHL documents_PDF.exe was found to be: Known bad.

Malicious Activity Summary

formbook b31a discovery rat spyware stealer trojan

Formbook

Formbook payload

Deletes itself

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-23 14:09

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-23 14:09

Reported

2024-09-23 14:11

Platform

win7-20240704-en

Max time kernel

148s

Max time network

124s

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

Deletes itself

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1648 set thread context of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 2532 set thread context of 1176 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Windows\Explorer.EXE
PID 2824 set thread context of 1176 N/A C:\Windows\SysWOW64\systray.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\DHL documents_PDF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\systray.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A
N/A N/A C:\Windows\SysWOW64\systray.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\systray.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1648 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2020 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1648 wrote to memory of 2532 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1176 wrote to memory of 2824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\systray.exe
PID 1176 wrote to memory of 2824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\systray.exe
PID 1176 wrote to memory of 2824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\systray.exe
PID 1176 wrote to memory of 2824 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\systray.exe
PID 2824 wrote to memory of 2212 N/A C:\Windows\SysWOW64\systray.exe C:\Windows\SysWOW64\cmd.exe
PID 2824 wrote to memory of 2212 N/A C:\Windows\SysWOW64\systray.exe C:\Windows\SysWOW64\cmd.exe
PID 2824 wrote to memory of 2212 N/A C:\Windows\SysWOW64\systray.exe C:\Windows\SysWOW64\cmd.exe
PID 2824 wrote to memory of 2212 N/A C:\Windows\SysWOW64\systray.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

C:\Windows\SysWOW64\systray.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

Network

N/A

Files

memory/1648-0-0x00000000745DE000-0x00000000745DF000-memory.dmp

memory/1648-1-0x0000000000100000-0x000000000019E000-memory.dmp

memory/1648-2-0x00000000745D0000-0x0000000074CBE000-memory.dmp

memory/1648-3-0x0000000000460000-0x0000000000472000-memory.dmp

memory/1648-4-0x00000000745DE000-0x00000000745DF000-memory.dmp

memory/1648-5-0x00000000745D0000-0x0000000074CBE000-memory.dmp

memory/1648-6-0x00000000052C0000-0x0000000005336000-memory.dmp

memory/2532-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2532-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2532-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2532-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1648-14-0x00000000745D0000-0x0000000074CBE000-memory.dmp

memory/2532-15-0x0000000000A80000-0x0000000000D83000-memory.dmp

memory/2532-18-0x0000000000340000-0x0000000000354000-memory.dmp

memory/2532-17-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1176-19-0x0000000000230000-0x0000000000330000-memory.dmp

memory/1176-20-0x0000000005160000-0x0000000005296000-memory.dmp

memory/2824-22-0x0000000000C00000-0x0000000000C05000-memory.dmp

memory/2824-21-0x0000000000C00000-0x0000000000C05000-memory.dmp

memory/2824-23-0x0000000000080000-0x00000000000AF000-memory.dmp

memory/1176-24-0x0000000005160000-0x0000000005296000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-23 14:09

Reported

2024-09-23 14:11

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

149s

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 1948 set thread context of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 216 set thread context of 2992 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Windows\Explorer.EXE
PID 2716 set thread context of 2992 N/A C:\Windows\SysWOW64\control.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\DHL documents_PDF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\control.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cmd.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A
N/A N/A C:\Windows\SysWOW64\control.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\control.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1948 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1948 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1948 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1948 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1948 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 1948 wrote to memory of 216 N/A C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe
PID 2992 wrote to memory of 2716 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\control.exe
PID 2992 wrote to memory of 2716 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\control.exe
PID 2992 wrote to memory of 2716 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\control.exe
PID 2716 wrote to memory of 212 N/A C:\Windows\SysWOW64\control.exe C:\Windows\SysWOW64\cmd.exe
PID 2716 wrote to memory of 212 N/A C:\Windows\SysWOW64\control.exe C:\Windows\SysWOW64\cmd.exe
PID 2716 wrote to memory of 212 N/A C:\Windows\SysWOW64\control.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

C:\Windows\SysWOW64\control.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\DHL documents_PDF.exe"

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 45.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 www.enjamin-paaac.buzz udp
US 52.111.229.48:443 tcp
US 8.8.8.8:53 36.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 www.lc-driving-school.net udp
US 8.8.8.8:53 www.algrup.net udp
RO 92.80.198.37:80 www.algrup.net tcp
US 8.8.8.8:53 www.algrup.net udp
RO 92.80.198.37:80 www.algrup.net tcp
US 8.8.8.8:53 www.iefi6834.vip udp

Files

memory/1948-0-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

memory/1948-1-0x0000000000430000-0x00000000004CE000-memory.dmp

memory/1948-2-0x00000000053D0000-0x0000000005974000-memory.dmp

memory/1948-3-0x0000000004EC0000-0x0000000004F52000-memory.dmp

memory/1948-5-0x0000000074CC0000-0x0000000075470000-memory.dmp

memory/1948-4-0x0000000004E80000-0x0000000004E8A000-memory.dmp

memory/1948-6-0x00000000067F0000-0x0000000006802000-memory.dmp

memory/1948-7-0x0000000074CCE000-0x0000000074CCF000-memory.dmp

memory/1948-8-0x0000000074CC0000-0x0000000075470000-memory.dmp

memory/1948-9-0x0000000006AA0000-0x0000000006B16000-memory.dmp

memory/1948-10-0x0000000009190000-0x000000000922C000-memory.dmp

memory/216-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1948-13-0x0000000074CC0000-0x0000000075470000-memory.dmp

memory/216-17-0x00000000012D0000-0x00000000012E4000-memory.dmp

memory/216-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/216-14-0x0000000001370000-0x00000000016BA000-memory.dmp

memory/2992-18-0x0000000008490000-0x000000000859F000-memory.dmp

memory/2716-19-0x0000000000690000-0x00000000006B7000-memory.dmp

memory/2716-20-0x0000000000690000-0x00000000006B7000-memory.dmp

memory/2716-21-0x0000000000750000-0x000000000077F000-memory.dmp

memory/2992-22-0x0000000008490000-0x000000000859F000-memory.dmp

memory/2992-26-0x0000000002A90000-0x0000000002B6B000-memory.dmp

memory/2992-27-0x0000000002A90000-0x0000000002B6B000-memory.dmp

memory/2992-29-0x0000000002A90000-0x0000000002B6B000-memory.dmp