Malware Analysis Report

2025-04-03 19:48

Sample ID 241110-hfrera1lfz
Target 2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker
SHA256 68fbb6a9f717ca81440867aae648617e23aa0efb3ce49a89a9faee94802f1989
Tags
discovery upx
score
7/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
7/10

SHA256

68fbb6a9f717ca81440867aae648617e23aa0efb3ce49a89a9faee94802f1989

Threat Level: Shows suspicious behavior

The file 2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery upx

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

UPX packed file

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 06:41

Signatures

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: behavioral2

Detonation Overview

Submitted

2024-11-10 06:41

Reported

2024-11-10 06:43

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\asih.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_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 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 68.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp

Files

memory/5000-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/5000-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/5000-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/5000-3-0x0000000000660000-0x0000000000666000-memory.dmp

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

MD5 99210562bbb4a998c560546a44136ef7
SHA1 d27779964c4b6c06cd51da34dd0da402895cea13
SHA256 afd0e804b3effaab3cd52ac5190bd4c790a15e5c8d0fe4b7ae90ffcce3b3190b
SHA512 ab908e5439ab8f10635fcb2ac87e3bc1c25e7b9eeb8c3f0b509927ffaa725ca884eb7c5ae0a684cc0ca6d57f22a59bb6640f0699b8eaedafb7aa0c87bf2d6dda

memory/5000-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3624-19-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/3624-20-0x0000000000850000-0x0000000000856000-memory.dmp

memory/3624-26-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 06:41

Reported

2024-11-10 06:43

Platform

win7-20241023-en

Max time kernel

141s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker.exe"

Signatures

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\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_426f08abcd67aef7791f2e8b3581bf4e_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 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/2584-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2584-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2584-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2584-2-0x0000000000480000-0x0000000000486000-memory.dmp

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

MD5 99210562bbb4a998c560546a44136ef7
SHA1 d27779964c4b6c06cd51da34dd0da402895cea13
SHA256 afd0e804b3effaab3cd52ac5190bd4c790a15e5c8d0fe4b7ae90ffcce3b3190b
SHA512 ab908e5439ab8f10635fcb2ac87e3bc1c25e7b9eeb8c3f0b509927ffaa725ca884eb7c5ae0a684cc0ca6d57f22a59bb6640f0699b8eaedafb7aa0c87bf2d6dda

memory/2584-13-0x0000000002840000-0x000000000284F000-memory.dmp

memory/2432-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2584-15-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2432-26-0x0000000000500000-0x000000000050F000-memory.dmp