Malware Analysis Report

2025-01-18 14:34

Sample ID 240613-d3xg3awfmq
Target 2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker
SHA256 25ae6b227770d5911b2248a3ed8f38653902f40b2d276d07ef88be23b7c0d00a
Tags
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

25ae6b227770d5911b2248a3ed8f38653902f40b2d276d07ef88be23b7c0d00a

Threat Level: Known bad

The file 2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:32

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: behavioral2

Detonation Overview

Submitted

2024-06-13 03:32

Reported

2024-06-13 03:35

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_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-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp
US 8.8.8.8:53 nasap.net udp

Files

memory/3252-0-0x0000000002110000-0x0000000002116000-memory.dmp

memory/3252-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/3252-8-0x0000000002110000-0x0000000002116000-memory.dmp

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

MD5 e820838fce01787e3adabce13ff8632d
SHA1 127e79cbb74649d30cc67391c6aa921f1901dbd1
SHA256 65d625c4342086bca7b3850ab7fd9e6f2661b67ffc78e5b8dfd909f290b07ba2
SHA512 3eebf65e11ac0b4cbff52c9d3d6c43dad6fef3763d413b234f1bf03bf694bd5418c63d8092d27a3f9f4722fc582aed15b9de0bc7024507a383a4dc56604bd892

memory/3232-25-0x0000000000670000-0x0000000000676000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:32

Reported

2024-06-13 03:35

Platform

win7-20240221-en

Max time kernel

121s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_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\gewos.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_4b332d6960ccf7570c9432085da65dce_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 nasap.net udp
US 35.212.119.5:443 nasap.net tcp

Files

memory/2932-0-0x00000000003C0000-0x00000000003C6000-memory.dmp

memory/2932-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/2932-8-0x00000000003C0000-0x00000000003C6000-memory.dmp

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

MD5 e820838fce01787e3adabce13ff8632d
SHA1 127e79cbb74649d30cc67391c6aa921f1901dbd1
SHA256 65d625c4342086bca7b3850ab7fd9e6f2661b67ffc78e5b8dfd909f290b07ba2
SHA512 3eebf65e11ac0b4cbff52c9d3d6c43dad6fef3763d413b234f1bf03bf694bd5418c63d8092d27a3f9f4722fc582aed15b9de0bc7024507a383a4dc56604bd892

memory/2252-23-0x00000000003A0000-0x00000000003A6000-memory.dmp