Malware Analysis Report

2025-01-18 12:28

Sample ID 240901-xnla2ayhlp
Target b6a9be2713b7637f854550ad474b5214e18bb760da0142e02b288510d2c6175e
SHA256 b6a9be2713b7637f854550ad474b5214e18bb760da0142e02b288510d2c6175e
Tags
formbook oy1n 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

b6a9be2713b7637f854550ad474b5214e18bb760da0142e02b288510d2c6175e

Threat Level: Known bad

The file b6a9be2713b7637f854550ad474b5214e18bb760da0142e02b288510d2c6175e was found to be: Known bad.

Malicious Activity Summary

formbook oy1n discovery rat spyware stealer trojan

Formbook

Formbook payload

Checks computer location settings

Suspicious use of SetThreadContext

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-09-01 19:00

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-09-01 19:00

Reported

2024-09-01 19:03

Platform

win7-20240708-en

Max time kernel

121s

Max time network

129s

Command Line

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.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

Enumerates physical storage devices

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\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2864 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 2864 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 2864 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 2864 wrote to memory of 2800 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 2864 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

Processes

C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dVujTFoJVTvyEe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp8B8D.tmp"

C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe"

Network

N/A

Files

memory/2864-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

memory/2864-1-0x0000000001060000-0x00000000010E8000-memory.dmp

memory/2864-2-0x00000000003E0000-0x00000000003EE000-memory.dmp

memory/2864-3-0x00000000744E0000-0x0000000074BCE000-memory.dmp

memory/2864-4-0x00000000744EE000-0x00000000744EF000-memory.dmp

memory/2864-5-0x00000000744E0000-0x0000000074BCE000-memory.dmp

memory/2864-6-0x00000000047C0000-0x0000000004818000-memory.dmp

memory/3048-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3048-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3048-13-0x0000000000400000-0x000000000042F000-memory.dmp

memory/3048-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2864-17-0x00000000744E0000-0x0000000074BCE000-memory.dmp

memory/3048-18-0x0000000000920000-0x0000000000C23000-memory.dmp

memory/3048-19-0x0000000000920000-0x0000000000C23000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-09-01 19:00

Reported

2024-09-01 19:03

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe N/A

Enumerates physical storage devices

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\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1948 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 1948 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 1948 wrote to memory of 656 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Windows\SysWOW64\schtasks.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 1136 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 1136 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 1136 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 1136 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 1136 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe
PID 1948 wrote to memory of 1136 N/A C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

Processes

C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe"

C:\Windows\SysWOW64\schtasks.exe

"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\dVujTFoJVTvyEe" /XML "C:\Users\Admin\AppData\Local\Temp\tmp13B7.tmp"

C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe"

C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe

"C:\Users\Admin\AppData\Local\Temp\51b54616de868dfaa1addcc28e0ca99f66a061de672858c2cdccafcce04aa335.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 42.56.20.217.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 152.141.79.40.in-addr.arpa udp

Files

memory/1948-0-0x00000000745FE000-0x00000000745FF000-memory.dmp

memory/1948-1-0x0000000000170000-0x00000000001F8000-memory.dmp

memory/1948-2-0x0000000005280000-0x0000000005824000-memory.dmp

memory/1948-3-0x0000000004BD0000-0x0000000004C62000-memory.dmp

memory/1948-4-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/1948-5-0x0000000004CA0000-0x0000000004CAA000-memory.dmp

memory/1948-6-0x0000000004D90000-0x0000000004D9E000-memory.dmp

memory/1948-7-0x00000000745FE000-0x00000000745FF000-memory.dmp

memory/1948-8-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/1948-9-0x0000000005A30000-0x0000000005ACC000-memory.dmp

memory/1948-10-0x0000000005C20000-0x0000000005C78000-memory.dmp

memory/1136-16-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1948-18-0x00000000745F0000-0x0000000074DA0000-memory.dmp

memory/1136-19-0x0000000001670000-0x00000000019BA000-memory.dmp

memory/1136-20-0x0000000001670000-0x00000000019BA000-memory.dmp