Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-d82c7swgqk
Target 2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker
SHA256 989947614f20e02a32b26d3558b4c6524261d1fd9856bfeb103be458f509c598
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

989947614f20e02a32b26d3558b4c6524261d1fd9856bfeb103be458f509c598

Threat Level: Known bad

The file 2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:41

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 03:41

Reported

2024-06-13 03:44

Platform

win7-20240611-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_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/1044-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/1044-2-0x0000000000360000-0x0000000000366000-memory.dmp

memory/1044-1-0x0000000000330000-0x0000000000336000-memory.dmp

memory/1044-9-0x0000000000330000-0x0000000000336000-memory.dmp

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

MD5 c13eb40795ebb5691ca5e3d164620231
SHA1 3d30c4d2116b1dd074c294c21f12c76ecacb2e1b
SHA256 c45e295b5942abdafbf5cb1e04a5e9d504713658f194c2d5d33c029e71ef3966
SHA512 332cf333a3c2b47848f0474732cad426e12d0208bc3798f2737ce1960ba3b74d67b4c94f95b470956abb0cc171988038b545f2a72c7f78fa0e9e7ca6e1a16465

memory/1044-15-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2536-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2536-18-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

memory/2536-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2536-26-0x0000000008000000-0x000000000800A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:41

Reported

2024-06-13 03:44

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
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_8a83a802e5dbc2bd3e01c73815c7d2e8_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_8a83a802e5dbc2bd3e01c73815c7d2e8_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_8a83a802e5dbc2bd3e01c73815c7d2e8_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
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/2364-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2364-1-0x0000000002160000-0x0000000002166000-memory.dmp

memory/2364-2-0x0000000003150000-0x0000000003156000-memory.dmp

memory/2364-9-0x0000000002160000-0x0000000002166000-memory.dmp

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

MD5 c13eb40795ebb5691ca5e3d164620231
SHA1 3d30c4d2116b1dd074c294c21f12c76ecacb2e1b
SHA256 c45e295b5942abdafbf5cb1e04a5e9d504713658f194c2d5d33c029e71ef3966
SHA512 332cf333a3c2b47848f0474732cad426e12d0208bc3798f2737ce1960ba3b74d67b4c94f95b470956abb0cc171988038b545f2a72c7f78fa0e9e7ca6e1a16465

memory/2364-17-0x0000000008000000-0x000000000800A000-memory.dmp

memory/4224-18-0x0000000008000000-0x000000000800A000-memory.dmp

memory/4224-26-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/4224-27-0x0000000008000000-0x000000000800A000-memory.dmp