Malware Analysis Report

2025-04-14 04:37

Sample ID 240612-vq4t2swgjj
Target 2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker
SHA256 b8904ac20535d4c6cfd394516408845483c88241443bc896eefeff7c35f0bbe5
Tags
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

b8904ac20535d4c6cfd394516408845483c88241443bc896eefeff7c35f0bbe5

Threat Level: Known bad

The file 2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-12 17:12

Signatures

Detection of CryptoLocker Variants

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 17:12

Reported

2024-06-12 17:15

Platform

win7-20240508-en

Max time kernel

144s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp

Files

memory/2188-0-0x0000000000240000-0x0000000000243000-memory.dmp

memory/2188-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2188-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2188-2-0x0000000000530000-0x0000000000536000-memory.dmp

\Users\Admin\AppData\Local\Temp\misid.exe

MD5 45055bfea28fa317a9f0546f7c935173
SHA1 69d17df954e3d4158a1d4ecc9ae46feabe4563b4
SHA256 d9ef10db3277933c845fd5054b7bafb3fec6e0d8a89d47438563ef55affaf4f5
SHA512 f9fec38d96de8062738b1401257d52e6b6a6de7db0b8beeae065518d7624f8e5e47135977bb026d895a09ecb704a62edd8b4fa5017557a2a0a184b77f6a58068

memory/2848-15-0x0000000000230000-0x0000000000233000-memory.dmp

memory/2848-17-0x0000000000340000-0x0000000000346000-memory.dmp

memory/2848-24-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2848-25-0x0000000000230000-0x0000000000233000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 17:12

Reported

2024-06-12 17:15

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_92ac9de5514b28d505ff2239f9ae76d0_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp

Files

memory/4976-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

memory/4976-1-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/4976-2-0x0000000002060000-0x0000000002066000-memory.dmp

memory/4976-9-0x00000000021D0000-0x00000000021D6000-memory.dmp

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

MD5 45055bfea28fa317a9f0546f7c935173
SHA1 69d17df954e3d4158a1d4ecc9ae46feabe4563b4
SHA256 d9ef10db3277933c845fd5054b7bafb3fec6e0d8a89d47438563ef55affaf4f5
SHA512 f9fec38d96de8062738b1401257d52e6b6a6de7db0b8beeae065518d7624f8e5e47135977bb026d895a09ecb704a62edd8b4fa5017557a2a0a184b77f6a58068

memory/1272-17-0x0000000000450000-0x0000000000453000-memory.dmp

memory/4976-19-0x00000000004E0000-0x00000000004E3000-memory.dmp

memory/1272-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1272-21-0x0000000000660000-0x0000000000666000-memory.dmp