Malware Analysis Report

2025-08-11 06:11

Sample ID 240610-1h6lka1fqe
Target 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker
SHA256 54ac269031d5b61fc5706b847b9796d1de4985612d8b48dbd52def06c5651d54
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

54ac269031d5b61fc5706b847b9796d1de4985612d8b48dbd52def06c5651d54

Threat Level: Known bad

The file 2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

UPX packed file

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

2024-06-10 21:40

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

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 21:40

Reported

2024-06-10 21:42

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_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\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_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 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp

Files

memory/2968-8-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2968-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2968-1-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2968-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2968-14-0x0000000000500000-0x0000000000510000-memory.dmp

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

MD5 be1c400b8603fc77dacd656ecf03673c
SHA1 5a2e4ab51f30b32543d7fdc2f72097fc9ac57be5
SHA256 21e0dc47e7dc2a81432d7a85b98568884337f1796548a48e348510cb8e6bf80d
SHA512 4e365d65f4d3349054fbcf6bb788277085dadb8491c915309f258e848495ae1cf653efcf40dac21bb02f9169bfb02af06cdfea1e0fb55cc205fc3f9ced75ea08

memory/1988-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1988-18-0x0000000000210000-0x0000000000216000-memory.dmp

memory/1988-25-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 21:40

Reported

2024-06-10 21:42

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_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\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_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\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_bd4d9f46cb9b087e24b4e8c8760426ce_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/3584-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3584-1-0x0000000000730000-0x0000000000736000-memory.dmp

memory/3584-2-0x0000000000750000-0x0000000000756000-memory.dmp

memory/3584-9-0x0000000000730000-0x0000000000736000-memory.dmp

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

MD5 be1c400b8603fc77dacd656ecf03673c
SHA1 5a2e4ab51f30b32543d7fdc2f72097fc9ac57be5
SHA256 21e0dc47e7dc2a81432d7a85b98568884337f1796548a48e348510cb8e6bf80d
SHA512 4e365d65f4d3349054fbcf6bb788277085dadb8491c915309f258e848495ae1cf653efcf40dac21bb02f9169bfb02af06cdfea1e0fb55cc205fc3f9ced75ea08

memory/5084-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/5084-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/5084-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3584-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/5084-27-0x0000000000500000-0x0000000000510000-memory.dmp