Malware Analysis Report

2025-01-18 12:25

Sample ID 240831-b4rxvsyfqq
Target 9e3b07c4808bd0ecdbbe542bc8f1f589dc9e8838add5626fdd9d4dacdbe006a2.rar
SHA256 9e3b07c4808bd0ecdbbe542bc8f1f589dc9e8838add5626fdd9d4dacdbe006a2
Tags
formbook he2a 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

9e3b07c4808bd0ecdbbe542bc8f1f589dc9e8838add5626fdd9d4dacdbe006a2

Threat Level: Known bad

The file 9e3b07c4808bd0ecdbbe542bc8f1f589dc9e8838add5626fdd9d4dacdbe006a2.rar was found to be: Known bad.

Malicious Activity Summary

formbook he2a 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 WriteProcessMemory

Suspicious use of UnmapMainImage

Suspicious use of AdjustPrivilegeToken

Modifies registry class

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 01:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 01:42

Reported

2024-08-31 01:44

Platform

win7-20240704-en

Max time kernel

148s

Max time network

19s

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 2488 set thread context of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 596 set thread context of 1208 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Windows\Explorer.EXE
PID 2720 set thread context of 1208 N/A C:\Windows\SysWOW64\cscript.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\DPPLYAD_12872 PDF.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\cscript.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:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\cscript.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 2488 wrote to memory of 596 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 1208 wrote to memory of 2720 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1208 wrote to memory of 2720 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1208 wrote to memory of 2720 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 1208 wrote to memory of 2720 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\cscript.exe
PID 2720 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe
PID 2720 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe
PID 2720 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe
PID 2720 wrote to memory of 2684 N/A C:\Windows\SysWOW64\cscript.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

C:\Windows\SysWOW64\cscript.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

Network

N/A

Files

memory/2488-0-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

memory/2488-1-0x0000000001070000-0x0000000001128000-memory.dmp

memory/2488-2-0x0000000073D30000-0x000000007441E000-memory.dmp

memory/2488-3-0x0000000000560000-0x0000000000578000-memory.dmp

memory/2488-4-0x0000000073D3E000-0x0000000073D3F000-memory.dmp

memory/2488-5-0x0000000073D30000-0x000000007441E000-memory.dmp

memory/2488-6-0x00000000052F0000-0x0000000005366000-memory.dmp

memory/596-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/596-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/596-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/596-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2488-12-0x0000000073D30000-0x000000007441E000-memory.dmp

memory/596-13-0x0000000000970000-0x0000000000C73000-memory.dmp

memory/596-16-0x0000000000140000-0x0000000000154000-memory.dmp

memory/596-15-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1208-18-0x0000000004B10000-0x0000000004C5F000-memory.dmp

memory/2720-20-0x00000000003F0000-0x0000000000412000-memory.dmp

memory/2720-19-0x00000000003F0000-0x0000000000412000-memory.dmp

memory/2720-21-0x0000000000170000-0x000000000019F000-memory.dmp

memory/1208-22-0x0000000004B10000-0x0000000004C5F000-memory.dmp

memory/1208-24-0x0000000003760000-0x0000000003860000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 01:42

Reported

2024-08-31 01:44

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

140s

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 3500 set thread context of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 4280 set thread context of 3532 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Windows\Explorer.EXE
PID 4576 set thread context of 3532 N/A C:\Windows\SysWOW64\help.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\help.exe N/A
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\DPPLYAD_12872 PDF.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\ C:\Windows\Explorer.EXE N/A
Key created \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_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:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A
N/A N/A C:\Windows\SysWOW64\help.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\SysWOW64\help.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 3500 wrote to memory of 872 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 872 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 872 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3500 wrote to memory of 4280 N/A C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe
PID 3532 wrote to memory of 4576 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 3532 wrote to memory of 4576 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 3532 wrote to memory of 4576 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\help.exe
PID 4576 wrote to memory of 1504 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 4576 wrote to memory of 1504 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe
PID 4576 wrote to memory of 1504 N/A C:\Windows\SysWOW64\help.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe

"C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

C:\Windows\SysWOW64\help.exe

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

C:\Windows\SysWOW64\cmd.exe

/c del "C:\Users\Admin\AppData\Local\Temp\DPPLYAD_12872 PDF.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 147.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 www.walk-in-tubs-65827.bond udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 www.ethost.biz udp
US 72.14.185.43:80 www.ethost.biz tcp
US 8.8.8.8:53 43.185.14.72.in-addr.arpa udp
US 8.8.8.8:53 www.spanish-classes-76893.bond udp
DE 185.53.179.90:80 www.spanish-classes-76893.bond tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 90.179.53.185.in-addr.arpa 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.sdcollections.shop udp
CA 23.227.38.74:80 www.sdcollections.shop tcp
US 8.8.8.8:53 74.38.227.23.in-addr.arpa udp
US 8.8.8.8:53 www.online-gaming-66785.bond udp
DE 185.53.179.92:80 www.online-gaming-66785.bond tcp
US 8.8.8.8:53 92.179.53.185.in-addr.arpa udp

Files

memory/3500-0-0x000000007486E000-0x000000007486F000-memory.dmp

memory/3500-1-0x0000000000490000-0x0000000000548000-memory.dmp

memory/3500-2-0x0000000005550000-0x0000000005AF4000-memory.dmp

memory/3500-3-0x0000000004EE0000-0x0000000004F72000-memory.dmp

memory/3500-4-0x00000000050B0000-0x00000000050BA000-memory.dmp

memory/3500-5-0x0000000074860000-0x0000000075010000-memory.dmp

memory/3500-6-0x0000000005530000-0x0000000005548000-memory.dmp

memory/3500-7-0x000000007486E000-0x000000007486F000-memory.dmp

memory/3500-8-0x0000000074860000-0x0000000075010000-memory.dmp

memory/3500-9-0x0000000006110000-0x0000000006186000-memory.dmp

memory/3500-10-0x00000000063D0000-0x000000000646C000-memory.dmp

memory/4280-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3500-13-0x0000000074860000-0x0000000075010000-memory.dmp

memory/4280-14-0x00000000019D0000-0x0000000001D1A000-memory.dmp

memory/4280-17-0x00000000016A0000-0x00000000016B4000-memory.dmp

memory/4280-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3532-18-0x00000000036C0000-0x0000000003785000-memory.dmp

memory/4576-20-0x0000000000750000-0x0000000000757000-memory.dmp

memory/4576-19-0x0000000000750000-0x0000000000757000-memory.dmp

memory/4576-21-0x00000000012B0000-0x00000000012DF000-memory.dmp

memory/3532-25-0x0000000004BC0000-0x0000000004C8F000-memory.dmp

memory/3532-27-0x0000000004BC0000-0x0000000004C8F000-memory.dmp