Malware Analysis Report

2024-09-23 05:54

Sample ID 240602-bh7q7aeb56
Target aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0
SHA256 aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0
Tags
gandcrab persistence
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0

Threat Level: Known bad

The file aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0 was found to be: Known bad.

Malicious Activity Summary

gandcrab persistence

Detects Reflective DLL injection artifacts

Detects ransomware indicator

GandCrab payload

Gandcrab Payload

Gandcrab family

Adds Run key to start application

Unsigned PE

Program crash

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Checks processor information in registry

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-02 01:09

Signatures

Detects Reflective DLL injection artifacts

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

Detects ransomware indicator

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

GandCrab payload

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

Gandcrab Payload

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

Gandcrab family

gandcrab

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-02 01:09

Reported

2024-06-02 01:12

Platform

win7-20240508-en

Max time kernel

121s

Max time network

122s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0.dll,#1

Signatures

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2976 -s 228

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 01:09

Reported

2024-06-02 01:12

Platform

win10v2004-20240226-en

Max time kernel

145s

Max time network

153s

Command Line

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0.dll,#1

Signatures

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\qmdapwbfgmf = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\hqxskc.exe\"" C:\Windows\SysWOW64\rundll32.exe N/A

Program crash

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\WerFault.exe C:\Windows\SysWOW64\rundll32.exe

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Windows\SysWOW64\rundll32.exe N/A
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Windows\SysWOW64\rundll32.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A
N/A N/A C:\Windows\SysWOW64\rundll32.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4400 wrote to memory of 2512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4400 wrote to memory of 2512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe
PID 4400 wrote to memory of 2512 N/A C:\Windows\system32\rundll32.exe C:\Windows\SysWOW64\rundll32.exe

Processes

C:\Windows\system32\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0.dll,#1

C:\Windows\SysWOW64\rundll32.exe

rundll32.exe C:\Users\Admin\AppData\Local\Temp\aa323683bb90466af1fda5f9ddeede293a9c665b30c7c65a9466aefca85fc9d0.dll,#1

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 2512 -ip 2512

C:\Windows\SysWOW64\WerFault.exe

C:\Windows\SysWOW64\WerFault.exe -u -p 2512 -s 624

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1400 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 20.231.121.79:80 tcp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.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 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 142.250.187.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 234.187.250.142.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 90.65.42.20.in-addr.arpa udp

Files

N/A