Malware Analysis Report

2025-04-14 00:32

Sample ID 240601-w339qaba41
Target 2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker
SHA256 8106e9d46adfa44d210a78e9018f522237ecd8186918c38bb9c9c47bc0e81bec
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

8106e9d46adfa44d210a78e9018f522237ecd8186918c38bb9c9c47bc0e81bec

Threat Level: Known bad

The file 2024-06-01_654a19a4419aeeecc49a7d91571a831a_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

2024-06-01 18:27

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

2024-06-01 18:27

Reported

2024-06-01 18:30

Platform

win7-20240221-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_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\2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_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/1796-8-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/1796-1-0x00000000002B0000-0x00000000002B6000-memory.dmp

memory/1796-0-0x00000000002A0000-0x00000000002A6000-memory.dmp

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

MD5 5bbc1e4c3b9e6c5dca872e889a71ecec
SHA1 e4f484d182e0d312a34ae2e6e1a1a5172e992f1f
SHA256 d2d8d493d9b3e8e5dc625eddb1e90063d9de9206933f033c1407d35f7d0c0966
SHA512 4b0ae27ec596eaf0080f2ddf4db470c91ffb1ba50a9ef5385d1953d9e5d6299db061df6f95baee8bab9ee50a932d5e36d1c60e070e8713b5c6ef8947a2f4e8ab

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 18:27

Reported

2024-06-01 18:30

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_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\2024-06-01_654a19a4419aeeecc49a7d91571a831a_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_654a19a4419aeeecc49a7d91571a831a_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 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 154.239.44.20.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 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.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 8.8.8.8:53 145.83.221.88.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 31.243.111.52.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 2.17.178.52.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

Files

memory/4012-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/4012-1-0x0000000003150000-0x0000000003156000-memory.dmp

memory/4012-8-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

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

MD5 5bbc1e4c3b9e6c5dca872e889a71ecec
SHA1 e4f484d182e0d312a34ae2e6e1a1a5172e992f1f
SHA256 d2d8d493d9b3e8e5dc625eddb1e90063d9de9206933f033c1407d35f7d0c0966
SHA512 4b0ae27ec596eaf0080f2ddf4db470c91ffb1ba50a9ef5385d1953d9e5d6299db061df6f95baee8bab9ee50a932d5e36d1c60e070e8713b5c6ef8947a2f4e8ab

memory/228-17-0x0000000003010000-0x0000000003016000-memory.dmp

memory/228-23-0x0000000002120000-0x0000000002126000-memory.dmp