Malware Analysis Report

2025-01-18 14:25

Sample ID 240613-d17j9asfqg
Target 2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker
SHA256 263d4f4674ee6e57aa6818607da6c25a34011f61217e4ee281839f99b4139990
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

263d4f4674ee6e57aa6818607da6c25a34011f61217e4ee281839f99b4139990

Threat Level: Known bad

The file 2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:29

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Detection of Cryptolocker Samples

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 03:29

Reported

2024-06-13 03:32

Platform

win7-20240508-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Detection of Cryptolocker Samples

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\misid.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp

Files

memory/2216-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2216-1-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2216-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

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

MD5 563c92ac35c58f4b4a4dec93e0ee4dee
SHA1 9bce4b70d6d49e9b2f6db5fee6bee174b9303d5a
SHA256 25f039f7803f99add2738dbf15cca12940ca655adb6b0666d40043c88cd35abf
SHA512 4abe61cc8fd6a42adf1d253ffe112cc38fdb69c2a61c34c0937d55bcee5cc240e34b27cc7ef986a848c8ed971f19ce6abffa3c9d8e230d017b60745f395b178e

memory/492-22-0x0000000000300000-0x0000000000306000-memory.dmp

memory/492-15-0x0000000000350000-0x0000000000356000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:29

Reported

2024-06-13 03:32

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

Detection of Cryptolocker Samples

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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3a0b8e671e48fe68c9bab4fc460b39f9_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp

Files

memory/4364-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/4364-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/4364-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

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

MD5 563c92ac35c58f4b4a4dec93e0ee4dee
SHA1 9bce4b70d6d49e9b2f6db5fee6bee174b9303d5a
SHA256 25f039f7803f99add2738dbf15cca12940ca655adb6b0666d40043c88cd35abf
SHA512 4abe61cc8fd6a42adf1d253ffe112cc38fdb69c2a61c34c0937d55bcee5cc240e34b27cc7ef986a848c8ed971f19ce6abffa3c9d8e230d017b60745f395b178e

memory/2404-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2404-23-0x00000000004D0000-0x00000000004D6000-memory.dmp