Malware Analysis Report

2025-04-14 04:17

Sample ID 240609-jd7jmagd65
Target 2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker
SHA256 58a72dbd3104b672f2d0d2f4ea941a9eb5a9edd695b987058e71a62cf10f6777
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

58a72dbd3104b672f2d0d2f4ea941a9eb5a9edd695b987058e71a62cf10f6777

Threat Level: Known bad

The file 2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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

2024-06-09 07:34

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

2024-06-09 07:34

Reported

2024-06-09 07:36

Platform

win7-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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/836-0-0x0000000008000000-0x000000000800D000-memory.dmp

memory/836-1-0x0000000000570000-0x0000000000576000-memory.dmp

memory/836-2-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/836-9-0x0000000000570000-0x0000000000576000-memory.dmp

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

MD5 7d06580faa717ce35a4ee67fd30f608b
SHA1 d9331245195b818c6d71768d132c961be98ea3d8
SHA256 61ee492bb71ed3357a9edc92fa7941d9c419969d122ecd88210bc3bd159055d2
SHA512 8c0f257a46003eafbada48d8b2ffbfc120f1858d5e8d1f845ca1c8a6722bb61ed987cd8327afcb7d72b8ad32b8ca644372b2809d08ef27cba8ce5343940525f2

memory/836-15-0x0000000008000000-0x000000000800D000-memory.dmp

memory/2356-16-0x0000000008000000-0x000000000800D000-memory.dmp

memory/2356-18-0x0000000000500000-0x0000000000506000-memory.dmp

memory/2356-25-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2356-26-0x0000000008000000-0x000000000800D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 07:34

Reported

2024-06-09 07:36

Platform

win10v2004-20240508-en

Max time kernel

126s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_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\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_b2e65c6612e492dd5a6dde83c8bcc69d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa 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 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 133.211.185.52.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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.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 8.8.8.8:53 144.107.17.2.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 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/4804-0-0x0000000008000000-0x000000000800D000-memory.dmp

memory/4804-1-0x0000000002D60000-0x0000000002D66000-memory.dmp

memory/4804-2-0x0000000003010000-0x0000000003016000-memory.dmp

memory/4804-9-0x0000000002D60000-0x0000000002D66000-memory.dmp

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

MD5 7d06580faa717ce35a4ee67fd30f608b
SHA1 d9331245195b818c6d71768d132c961be98ea3d8
SHA256 61ee492bb71ed3357a9edc92fa7941d9c419969d122ecd88210bc3bd159055d2
SHA512 8c0f257a46003eafbada48d8b2ffbfc120f1858d5e8d1f845ca1c8a6722bb61ed987cd8327afcb7d72b8ad32b8ca644372b2809d08ef27cba8ce5343940525f2

memory/4804-18-0x0000000008000000-0x000000000800D000-memory.dmp

memory/4444-17-0x0000000008000000-0x000000000800D000-memory.dmp

memory/4444-20-0x00000000022C0000-0x00000000022C6000-memory.dmp

memory/4444-26-0x0000000002110000-0x0000000002116000-memory.dmp

memory/4444-27-0x0000000008000000-0x000000000800D000-memory.dmp