Malware Analysis Report

2024-11-15 05:45

Sample ID 240614-b4w7kszhka
Target 2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker
SHA256 dacfb4603c583d34cc75b3edc8b37f038d4d80c137797b27a87a6d58c0c0103e
Tags
upx
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

dacfb4603c583d34cc75b3edc8b37f038d4d80c137797b27a87a6d58c0c0103e

Threat Level: Known bad

The file 2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

UPX packed file

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-14 01:42

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-14 01:42

Reported

2024-06-14 01:45

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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\asih.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker.exe N/A

UPX packed file

upx
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

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp

Files

memory/3048-1-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3048-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/3048-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/3048-2-0x00000000004B0000-0x00000000004B6000-memory.dmp

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

MD5 80447e08c396579494a2439f90f29c1c
SHA1 3c7279e4352c906f01a4b423b0c1155504cae164
SHA256 22315ceb40f00ccca0bfb35b59665fd61a65858cfa45ddd5d43db8e503fc21b8
SHA512 e733b98530bdee869613a6b4e31ece859b2b2e57f77cadcb413e5f24fd6c43fc24025a5b44666a6d0199c8afa7ff4295ab530d98c12386bec9ff955b79b19075

memory/3048-14-0x0000000002220000-0x0000000002230000-memory.dmp

memory/3048-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2340-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2340-20-0x0000000000340000-0x0000000000346000-memory.dmp

memory/2340-27-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2340-28-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-14 01:42

Reported

2024-06-14 01:45

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker.exe N/A

Executes dropped EXE

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

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-14_def904c13f6dd02ce4898ac7ec51b55a_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/1696-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1696-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1696-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/1696-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1848-27-0x0000000000520000-0x0000000000526000-memory.dmp

memory/1848-21-0x0000000000640000-0x0000000000646000-memory.dmp

memory/1696-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1848-17-0x0000000000500000-0x0000000000510000-memory.dmp

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

MD5 80447e08c396579494a2439f90f29c1c
SHA1 3c7279e4352c906f01a4b423b0c1155504cae164
SHA256 22315ceb40f00ccca0bfb35b59665fd61a65858cfa45ddd5d43db8e503fc21b8
SHA512 e733b98530bdee869613a6b4e31ece859b2b2e57f77cadcb413e5f24fd6c43fc24025a5b44666a6d0199c8afa7ff4295ab530d98c12386bec9ff955b79b19075

memory/1848-28-0x0000000000500000-0x0000000000510000-memory.dmp