Malware Analysis Report

2025-08-05 15:54

Sample ID 240602-3rfgvabe3s
Target 2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker
SHA256 d6f8f2a254dcbb32b272c287958adc698028ed275f496a6da2941ae4260771ba
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

d6f8f2a254dcbb32b272c287958adc698028ed275f496a6da2941ae4260771ba

Threat Level: Known bad

The file 2024-06-02_086c2831349dc7480a591a0bee91209c_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

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-02 23:44

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

2024-06-02 23:44

Reported

2024-06-02 23:47

Platform

win7-20240220-en

Max time kernel

149s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_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
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\2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_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/1728-0-0x0000000008000000-0x000000000800D000-memory.dmp

memory/1728-1-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

memory/1728-3-0x0000000001BD0000-0x0000000001BD6000-memory.dmp

memory/1728-9-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

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

MD5 7ae591cca3f99c4924c2c10c0de00e48
SHA1 c3ef5c6b3d7e57398177b04aa700bad18e6a78d4
SHA256 7237917422bbf869ccffb05e242de8c0186546dd811c10b4c87aea2d719d25f8
SHA512 9e7ffb12106ba28c5face8528b458868520835d26dd65a1481dc0ea32cafc21aff2e65d5ea9371338e0a3045c7b7d273007a78b9edb3f8165a8d77d7de7e3556

memory/1728-13-0x0000000001E10000-0x0000000001E1D000-memory.dmp

memory/1728-16-0x0000000008000000-0x000000000800D000-memory.dmp

memory/1036-18-0x0000000008000000-0x000000000800D000-memory.dmp

memory/1036-19-0x00000000005B0000-0x00000000005B6000-memory.dmp

memory/1036-26-0x0000000000310000-0x0000000000316000-memory.dmp

memory/1036-27-0x0000000008000000-0x000000000800D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 23:44

Reported

2024-06-02 23:47

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_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\2024-06-02_086c2831349dc7480a591a0bee91209c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_086c2831349dc7480a591a0bee91209c_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 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.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 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 240.221.184.93.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 30.243.111.52.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 8.8.8.8:53 208.143.182.52.in-addr.arpa udp

Files

memory/1264-0-0x0000000008000000-0x000000000800D000-memory.dmp

memory/1264-1-0x0000000002250000-0x0000000002256000-memory.dmp

memory/1264-2-0x0000000003150000-0x0000000003156000-memory.dmp

memory/1264-9-0x0000000002250000-0x0000000002256000-memory.dmp

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

MD5 7ae591cca3f99c4924c2c10c0de00e48
SHA1 c3ef5c6b3d7e57398177b04aa700bad18e6a78d4
SHA256 7237917422bbf869ccffb05e242de8c0186546dd811c10b4c87aea2d719d25f8
SHA512 9e7ffb12106ba28c5face8528b458868520835d26dd65a1481dc0ea32cafc21aff2e65d5ea9371338e0a3045c7b7d273007a78b9edb3f8165a8d77d7de7e3556

memory/1264-17-0x0000000008000000-0x000000000800D000-memory.dmp

memory/2160-19-0x0000000003010000-0x0000000003016000-memory.dmp

memory/2160-25-0x0000000002210000-0x0000000002216000-memory.dmp

memory/2160-26-0x0000000008000000-0x000000000800D000-memory.dmp