Malware Analysis Report

2024-10-19 09:26

Sample ID 240714-l3amasycne
Target d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.zip
SHA256 ee6ff36a258348f1942c0d31e8eb460fdb368e99953307f7acb3b15a74ff628f
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

ee6ff36a258348f1942c0d31e8eb460fdb368e99953307f7acb3b15a74ff628f

Threat Level: Known bad

The file d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.zip was found to be: Known bad.

Malicious Activity Summary

formbook rn94 rat spyware stealer trojan

Formbook

Formbook payload

Suspicious use of SetThreadContext

Unsigned PE

Program crash

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2024-07-14 10:02

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-07-14 10:02

Reported

2024-07-14 10:03

Platform

win7-20240708-en

Max time kernel

16s

Max time network

17s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.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 AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2116 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 3068 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 2116 wrote to memory of 1808 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 1808 wrote to memory of 2108 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Windows\SysWOW64\WerFault.exe
PID 1808 wrote to memory of 2108 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Windows\SysWOW64\WerFault.exe
PID 1808 wrote to memory of 2108 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Windows\SysWOW64\WerFault.exe
PID 1808 wrote to memory of 2108 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Windows\SysWOW64\WerFault.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe"

C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe"

C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe"

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 36

Network

N/A

Files

memory/2116-0-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

memory/2116-1-0x0000000000260000-0x0000000000316000-memory.dmp

memory/2116-2-0x0000000074E60000-0x000000007554E000-memory.dmp

memory/2116-3-0x0000000000250000-0x0000000000260000-memory.dmp

memory/2116-4-0x0000000000550000-0x000000000055E000-memory.dmp

memory/2116-5-0x0000000004EF0000-0x0000000004F66000-memory.dmp

memory/1808-6-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1808-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/1808-8-0x0000000000400000-0x000000000042F000-memory.dmp

memory/1808-11-0x0000000000400000-0x000000000042F000-memory.dmp

memory/2116-12-0x0000000074E60000-0x000000007554E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-07-14 10:02

Reported

2024-07-14 10:04

Platform

win10v2004-20240709-en

Max time kernel

34s

Max time network

35s

Command Line

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.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 4648 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 4648 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 4648 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 4648 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 4648 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe
PID 4648 wrote to memory of 4992 N/A C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe

Processes

C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe"

C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe

"C:\Users\Admin\AppData\Local\Temp\d16d34e4b1d1ef563842f3a0e691642da9f814bf240827e704caa57dc3106db0.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp

Files

memory/4648-0-0x00000000747AE000-0x00000000747AF000-memory.dmp

memory/4648-1-0x0000000000F80000-0x0000000001036000-memory.dmp

memory/4648-2-0x0000000005FF0000-0x0000000006594000-memory.dmp

memory/4648-3-0x0000000005A40000-0x0000000005AD2000-memory.dmp

memory/4648-4-0x0000000005AE0000-0x0000000005AEA000-memory.dmp

memory/4648-5-0x00000000747A0000-0x0000000074F50000-memory.dmp

memory/4648-6-0x0000000005BE0000-0x0000000005BF0000-memory.dmp

memory/4648-7-0x0000000006BB0000-0x0000000006BBE000-memory.dmp

memory/4648-8-0x0000000006BE0000-0x0000000006C56000-memory.dmp

memory/4648-9-0x0000000009450000-0x00000000094EC000-memory.dmp

memory/4992-10-0x0000000000400000-0x000000000042F000-memory.dmp

memory/4648-12-0x00000000747A0000-0x0000000074F50000-memory.dmp

memory/4992-13-0x00000000010D0000-0x000000000141A000-memory.dmp