Malware Analysis Report

2025-01-18 12:33

Sample ID 240831-cy141s1bpd
Target ba67d6bb2d0999ec60d8f95bddb0cf5386a00a8bea67a72f2886ecdfebff10de
SHA256 ba67d6bb2d0999ec60d8f95bddb0cf5386a00a8bea67a72f2886ecdfebff10de
Tags
discovery formbook b48n 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

ba67d6bb2d0999ec60d8f95bddb0cf5386a00a8bea67a72f2886ecdfebff10de

Threat Level: Known bad

The file ba67d6bb2d0999ec60d8f95bddb0cf5386a00a8bea67a72f2886ecdfebff10de was found to be: Known bad.

Malicious Activity Summary

discovery formbook b48n rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-31 02:29

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-31 02:29

Reported

2024-08-31 02:32

Platform

win7-20240704-en

Max time kernel

117s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

Signatures

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\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2284 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2720 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2724 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2284 wrote to memory of 2784 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

Network

N/A

Files

memory/2284-0-0x00000000749EE000-0x00000000749EF000-memory.dmp

memory/2284-1-0x0000000000370000-0x0000000000412000-memory.dmp

memory/2284-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

memory/2284-3-0x00000000005E0000-0x00000000005F8000-memory.dmp

memory/2284-4-0x00000000749EE000-0x00000000749EF000-memory.dmp

memory/2284-5-0x00000000749E0000-0x00000000750CE000-memory.dmp

memory/2284-6-0x0000000004C80000-0x0000000004CF6000-memory.dmp

memory/2284-7-0x00000000749E0000-0x00000000750CE000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-31 02:29

Reported

2024-08-31 02:32

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

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\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1672 wrote to memory of 3692 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1672 wrote to memory of 3692 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1672 wrote to memory of 3692 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1672 wrote to memory of 3692 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1672 wrote to memory of 3692 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1672 wrote to memory of 3692 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

Processes

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe"

C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe

"C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/1672-0-0x00000000751EE000-0x00000000751EF000-memory.dmp

memory/1672-1-0x00000000007B0000-0x0000000000852000-memory.dmp

memory/1672-2-0x00000000057B0000-0x0000000005D54000-memory.dmp

memory/1672-3-0x00000000052A0000-0x0000000005332000-memory.dmp

memory/1672-4-0x0000000005260000-0x000000000526A000-memory.dmp

memory/1672-5-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/1672-6-0x00000000053E0000-0x00000000053F8000-memory.dmp

memory/1672-7-0x00000000751EE000-0x00000000751EF000-memory.dmp

memory/1672-8-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/1672-9-0x0000000006560000-0x00000000065D6000-memory.dmp

memory/1672-10-0x00000000067B0000-0x000000000684C000-memory.dmp

memory/3692-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1672-13-0x00000000751E0000-0x0000000075990000-memory.dmp

memory/3692-14-0x0000000000ED0000-0x000000000121A000-memory.dmp