Malware Analysis Report

2024-10-19 09:26

Sample ID 240716-pxbtyswbqa
Target DHL_TOC2_2407081728458457.pdf.exe
SHA256 05b3ae9c167cf06edf52dc99127dfd516e24ead51e9da7d3fbf230124e7063e1
Tags
formbook rn94 rat spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

05b3ae9c167cf06edf52dc99127dfd516e24ead51e9da7d3fbf230124e7063e1

Threat Level: Known bad

The file DHL_TOC2_2407081728458457.pdf.exe was found to be: Known bad.

Malicious Activity Summary

formbook rn94 rat spyware stealer trojan

Formbook

Formbook payload

Drops startup file

Loads dropped DLL

Executes dropped EXE

AutoIT Executable

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: MapViewOfSection

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-16 12:42

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

2024-07-16 12:42

Reported

2024-07-16 12:44

Platform

win7-20240705-en

Max time kernel

149s

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
N/A N/A N/A N/A
N/A N/A N/A N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.vbs C:\Users\Admin\AppData\Local\directory\name.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\directory\name.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2776 set thread context of 2636 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 2636 set thread context of 1260 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 2636 set thread context of 1260 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 2572 set thread context of 1260 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\Explorer.EXE

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\explorer.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2708 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe C:\Users\Admin\AppData\Local\directory\name.exe
PID 2708 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe C:\Users\Admin\AppData\Local\directory\name.exe
PID 2708 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe C:\Users\Admin\AppData\Local\directory\name.exe
PID 2708 wrote to memory of 2776 N/A C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe C:\Users\Admin\AppData\Local\directory\name.exe
PID 2776 wrote to memory of 2636 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 2776 wrote to memory of 2636 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 2776 wrote to memory of 2636 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 2776 wrote to memory of 2636 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 2776 wrote to memory of 2636 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 1260 wrote to memory of 2572 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 1260 wrote to memory of 2572 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 1260 wrote to memory of 2572 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 1260 wrote to memory of 2572 N/A C:\Windows\Explorer.EXE C:\Windows\SysWOW64\explorer.exe
PID 2572 wrote to memory of 2540 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe
PID 2572 wrote to memory of 2540 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe
PID 2572 wrote to memory of 2540 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe
PID 2572 wrote to memory of 2540 N/A C:\Windows\SysWOW64\explorer.exe C:\Windows\SysWOW64\cmd.exe

Processes

C:\Windows\Explorer.EXE

C:\Windows\Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe"

C:\Users\Admin\AppData\Local\directory\name.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe"

C:\Windows\SysWOW64\explorer.exe

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

C:\Windows\SysWOW64\cmd.exe

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

Network

N/A

Files

memory/2708-10-0x00000000000A0000-0x00000000000A4000-memory.dmp

\Users\Admin\AppData\Local\directory\name.exe

MD5 f6ed869b733b1f2aa3bdd06040f3372a
SHA1 7075acf1c62e44653f5c834a14b56cd342f0ae5a
SHA256 05b3ae9c167cf06edf52dc99127dfd516e24ead51e9da7d3fbf230124e7063e1
SHA512 cba7753022eaa43f2d1bc77c73c7276824545e3083eee5e321f8be5b729bad3b01fe84108cbc5bdbe5fca7df1e802a55b36ef19292b1874a1cb514af5c16c582

C:\Users\Admin\AppData\Local\Temp\niellists

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/2636-30-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2636-34-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2636-33-0x0000000000180000-0x0000000000195000-memory.dmp

memory/2636-32-0x0000000000910000-0x0000000000C13000-memory.dmp

memory/1260-35-0x00000000052A0000-0x00000000053A0000-memory.dmp

memory/1260-37-0x00000000052A0000-0x00000000053A0000-memory.dmp

memory/2636-39-0x0000000000210000-0x0000000000225000-memory.dmp

memory/1260-40-0x0000000007640000-0x000000000779A000-memory.dmp

memory/2636-38-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2572-41-0x0000000000690000-0x0000000000911000-memory.dmp

memory/2572-42-0x0000000000690000-0x0000000000911000-memory.dmp

memory/2572-43-0x00000000000C0000-0x00000000000EF000-memory.dmp

memory/1260-46-0x0000000007640000-0x000000000779A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-16 12:42

Reported

2024-07-16 12:44

Platform

win10v2004-20240709-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

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.vbs C:\Users\Admin\AppData\Local\directory\name.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\directory\name.exe N/A

AutoIT Executable

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

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 3884 set thread context of 1628 N/A C:\Users\Admin\AppData\Local\directory\name.exe C:\Windows\SysWOW64\svchost.exe
PID 1628 set thread context of 3548 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE
PID 1628 set thread context of 3548 N/A C:\Windows\SysWOW64\svchost.exe C:\Windows\Explorer.EXE

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

Suspicious behavior: MapViewOfSection

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\directory\name.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

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\DHL_TOC2_2407081728458457.pdf.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe"

C:\Users\Admin\AppData\Local\directory\name.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe"

C:\Windows\SysWOW64\svchost.exe

"C:\Users\Admin\AppData\Local\Temp\DHL_TOC2_2407081728458457.pdf.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp

Files

memory/3936-10-0x00000000017B0000-0x00000000017B4000-memory.dmp

C:\Users\Admin\AppData\Local\directory\name.exe

MD5 f6ed869b733b1f2aa3bdd06040f3372a
SHA1 7075acf1c62e44653f5c834a14b56cd342f0ae5a
SHA256 05b3ae9c167cf06edf52dc99127dfd516e24ead51e9da7d3fbf230124e7063e1
SHA512 cba7753022eaa43f2d1bc77c73c7276824545e3083eee5e321f8be5b729bad3b01fe84108cbc5bdbe5fca7df1e802a55b36ef19292b1874a1cb514af5c16c582

C:\Users\Admin\AppData\Local\Temp\niellists

MD5 204e9c43a5bb5c91ac25d36f3a11db97
SHA1 66270bfeea6cf6e6b68cd38d53fa17ce743adb1d
SHA256 7d30817f346c1deadf47d6863d231c90c9521887573d8b90ec0aa6a66be37520
SHA512 891b745a4c488b0415a0a1424613256a7a8f8631a31f096abf4050efea7613b2199b0828c76072b86e05c96befe599038815210b080bd2a984bf4a9a371bfb23

C:\Users\Admin\AppData\Local\Temp\Mazatl

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/1628-28-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1628-29-0x0000000001400000-0x000000000174A000-memory.dmp

memory/1628-31-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1628-32-0x0000000000F20000-0x0000000000F35000-memory.dmp

memory/3548-33-0x0000000008490000-0x000000000860F000-memory.dmp

memory/3548-37-0x0000000002CF0000-0x0000000002DD8000-memory.dmp

memory/1628-36-0x0000000000FB0000-0x0000000000FC5000-memory.dmp

memory/1628-35-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3548-38-0x0000000002CF0000-0x0000000002DD8000-memory.dmp