Malware Analysis Report

2025-01-18 12:24

Sample ID 240830-cxhlaavajp
Target f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
SHA256 f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c
Tags
formbook b48n 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

f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c

Threat Level: Known bad

The file f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe was found to be: Known bad.

Malicious Activity Summary

formbook b48n discovery rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Program crash

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-30 02:27

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-30 02:27

Reported

2024-08-30 02:29

Platform

win7-20240704-en

Max time kernel

119s

Max time network

125s

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
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 1948 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2340 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2076 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1948 wrote to memory of 2148 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 2148 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Windows\SysWOW64\WerFault.exe
PID 2148 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Windows\SysWOW64\WerFault.exe
PID 2148 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Windows\SysWOW64\WerFault.exe
PID 2148 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Windows\SysWOW64\WerFault.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:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2148 -s 36

Network

N/A

Files

memory/1948-0-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

memory/1948-1-0x0000000000170000-0x0000000000212000-memory.dmp

memory/1948-2-0x0000000074AB0000-0x000000007519E000-memory.dmp

memory/1948-3-0x00000000005F0000-0x0000000000608000-memory.dmp

memory/1948-4-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

memory/1948-5-0x0000000074AB0000-0x000000007519E000-memory.dmp

memory/1948-6-0x0000000004C70000-0x0000000004CE6000-memory.dmp

memory/2148-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2148-12-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2148-9-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2148-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1948-13-0x0000000074AB0000-0x000000007519E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-30 02:27

Reported

2024-08-30 02:29

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

151s

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 1668 wrote to memory of 4408 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1668 wrote to memory of 4408 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1668 wrote to memory of 4408 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1668 wrote to memory of 4408 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1668 wrote to memory of 4408 N/A C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe C:\Users\Admin\AppData\Local\Temp\f19194ff1ec767b06e63a0239670106f598b4df2b660c5c2e6f6707646c07d2c.exe
PID 1668 wrote to memory of 4408 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 8.8.8.8:53 228.249.119.40.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 8.8.8.8:53 138.32.126.40.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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 24.139.73.23.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.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 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp

Files

memory/1668-0-0x00000000751DE000-0x00000000751DF000-memory.dmp

memory/1668-1-0x0000000000E20000-0x0000000000EC2000-memory.dmp

memory/1668-2-0x0000000005D00000-0x00000000062A4000-memory.dmp

memory/1668-3-0x00000000057F0000-0x0000000005882000-memory.dmp

memory/1668-4-0x0000000005780000-0x000000000578A000-memory.dmp

memory/1668-5-0x00000000751D0000-0x0000000075980000-memory.dmp

memory/1668-6-0x0000000005A90000-0x0000000005AA8000-memory.dmp

memory/1668-7-0x00000000751DE000-0x00000000751DF000-memory.dmp

memory/1668-8-0x00000000751D0000-0x0000000075980000-memory.dmp

memory/1668-9-0x00000000069B0000-0x0000000006A26000-memory.dmp

memory/1668-10-0x0000000006C30000-0x0000000006CCC000-memory.dmp

memory/4408-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1668-13-0x00000000751D0000-0x0000000075980000-memory.dmp

memory/4408-14-0x0000000001710000-0x0000000001A5A000-memory.dmp