Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-d417mssgpb
Target 2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker
SHA256 4b688fe2e27583a9abfc9e0a6a677adee75a219c6826061a19125cacd9c5e113
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

4b688fe2e27583a9abfc9e0a6a677adee75a219c6826061a19125cacd9c5e113

Threat Level: Known bad

The file 2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:34

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

2024-06-13 03:34

Reported

2024-06-13 03:37

Platform

win7-20240221-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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\hasfj.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe"

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

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

Network

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

Files

memory/2172-0-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2172-1-0x0000000000320000-0x0000000000326000-memory.dmp

memory/2172-8-0x0000000000310000-0x0000000000316000-memory.dmp

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

MD5 522f16518e12602315f9eaa5106e6177
SHA1 9ac59b8b240aa9d6791419391fa62716b51a4586
SHA256 23414d803eb6905b656f04b815ee7e9b83aa5f9638664cc044b7dd88d8ad883a
SHA512 a9214cd6fc59b1fdb66853f6945762b7dfd90c8f282ea74ee38b24ae37f2b3b121f906e3e4a5c7a55ad85eea32d814c75b93d0a6f0cbcc90250af16243020892

memory/3064-22-0x0000000000480000-0x0000000000486000-memory.dmp

memory/3064-15-0x0000000000490000-0x0000000000496000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:34

Reported

2024-06-13 03:37

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_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\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_638ce153037eb5ccc5ba83f3d406b317_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\hasfj.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 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp

Files

memory/4868-0-0x0000000002180000-0x0000000002186000-memory.dmp

memory/4868-1-0x0000000002200000-0x0000000002206000-memory.dmp

memory/4868-8-0x0000000002180000-0x0000000002186000-memory.dmp

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

MD5 522f16518e12602315f9eaa5106e6177
SHA1 9ac59b8b240aa9d6791419391fa62716b51a4586
SHA256 23414d803eb6905b656f04b815ee7e9b83aa5f9638664cc044b7dd88d8ad883a
SHA512 a9214cd6fc59b1fdb66853f6945762b7dfd90c8f282ea74ee38b24ae37f2b3b121f906e3e4a5c7a55ad85eea32d814c75b93d0a6f0cbcc90250af16243020892

memory/3096-17-0x0000000003150000-0x0000000003156000-memory.dmp

memory/3096-23-0x0000000002EA0000-0x0000000002EA6000-memory.dmp