Malware Analysis Report

2025-01-18 12:40

Sample ID 240402-l945gsfa33
Target 12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.zip
SHA256 0ee8e79e519453a0d7219a76d531cc5a6e84afe03a60530bd5e425b4754772ab
Tags
formbook ns03 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

0ee8e79e519453a0d7219a76d531cc5a6e84afe03a60530bd5e425b4754772ab

Threat Level: Known bad

The file 12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.zip was found to be: Known bad.

Malicious Activity Summary

formbook ns03 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-04-02 10:14

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 10:14

Reported

2024-04-02 10:18

Platform

win7-20240221-en

Max time kernel

117s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 1676 wrote to memory of 2712 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Network

N/A

Files

memory/1676-0-0x0000000000F00000-0x0000000000F9C000-memory.dmp

memory/1676-1-0x00000000743D0000-0x0000000074ABE000-memory.dmp

memory/1676-2-0x0000000004FB0000-0x0000000004FF0000-memory.dmp

memory/1676-3-0x0000000000280000-0x0000000000294000-memory.dmp

memory/1676-4-0x0000000000450000-0x000000000045A000-memory.dmp

memory/1676-5-0x0000000000460000-0x000000000046C000-memory.dmp

memory/1676-6-0x0000000004A60000-0x0000000004AD6000-memory.dmp

memory/2712-7-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2712-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2712-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2712-13-0x0000000000A00000-0x0000000000D03000-memory.dmp

memory/1676-12-0x00000000743D0000-0x0000000074ABE000-memory.dmp

memory/2712-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 10:14

Reported

2024-04-02 10:18

Platform

win10v2004-20240226-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Signatures

Formbook

trojan spyware stealer formbook

Formbook payload

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4736 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4736 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4736 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4736 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4736 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe
PID 4736 wrote to memory of 5004 N/A C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

Processes

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe

"C:\Users\Admin\AppData\Local\Temp\12c7ec6f047ebf12cb9f142bb71fb0de5a61de79286776440b5814c94d93e2e4.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 9.66.18.2.in-addr.arpa udp
US 8.8.8.8:53 218.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 202.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 105.193.132.51.in-addr.arpa udp

Files

memory/4736-1-0x0000000075120000-0x00000000758D0000-memory.dmp

memory/4736-0-0x00000000005C0000-0x000000000065C000-memory.dmp

memory/4736-2-0x00000000056B0000-0x0000000005C54000-memory.dmp

memory/4736-3-0x0000000005020000-0x00000000050B2000-memory.dmp

memory/4736-4-0x00000000052C0000-0x00000000052D0000-memory.dmp

memory/4736-5-0x00000000050E0000-0x00000000050EA000-memory.dmp

memory/4736-6-0x00000000053E0000-0x00000000053F4000-memory.dmp

memory/4736-8-0x0000000005410000-0x000000000541C000-memory.dmp

memory/4736-7-0x0000000005400000-0x000000000540A000-memory.dmp

memory/4736-9-0x0000000006260000-0x00000000062D6000-memory.dmp

memory/4736-10-0x0000000008CD0000-0x0000000008D6C000-memory.dmp

memory/5004-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4736-13-0x0000000075120000-0x00000000758D0000-memory.dmp

memory/5004-14-0x0000000001780000-0x0000000001ACA000-memory.dmp

memory/5004-15-0x0000000001780000-0x0000000001ACA000-memory.dmp