Malware Analysis Report

2025-04-03 19:48

Sample ID 241110-hfv3ya1gqj
Target 2024-11-10_4a4c904dd6a8a8d95a6b224ae61688d5_cryptolocker
SHA256 d760e7b45ad8adffb5d79f9a1b211307912518d6aa0e8abde3a8ef3575c595b5
Tags
upx discovery
score
7/10

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
7/10

SHA256

d760e7b45ad8adffb5d79f9a1b211307912518d6aa0e8abde3a8ef3575c595b5

Threat Level: Shows suspicious behavior

The file 2024-11-10_4a4c904dd6a8a8d95a6b224ae61688d5_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

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: behavioral1

Detonation Overview

Submitted

2024-11-10 06:41

Reported

2024-11-10 06:43

Platform

win7-20240903-en

Max time kernel

140s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_4a4c904dd6a8a8d95a6b224ae61688d5_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_4a4c904dd6a8a8d95a6b224ae61688d5_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_4a4c904dd6a8a8d95a6b224ae61688d5_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_4a4c904dd6a8a8d95a6b224ae61688d5_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_4a4c904dd6a8a8d95a6b224ae61688d5_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

Files

memory/2376-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2376-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2376-2-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2376-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

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

MD5 515ec6774b2ebb96c455e71a8969c58b
SHA1 1a86bd9d20fca94a1de602d466f0c815afce5221
SHA256 f87a1ec240720777122da5373a21dcbc0ad3aa6e11741a81ed125c5fc999c5b7
SHA512 7e8a50e5a707a2713dfc7a7da5f57fbde91cc9cb07136a2a90a8070d25cd4dd5f8baa398c28851df089760d7959fb26ac83ea2f942cff724e39152773b82501f

memory/2376-13-0x0000000001E70000-0x0000000001E7F000-memory.dmp

memory/2532-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2376-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2532-20-0x00000000003F0000-0x00000000003F6000-memory.dmp

memory/2532-27-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2532-28-0x0000000000500000-0x000000000050F000-memory.dmp

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_4a4c904dd6a8a8d95a6b224ae61688d5_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_4a4c904dd6a8a8d95a6b224ae61688d5_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\2024-11-10_4a4c904dd6a8a8d95a6b224ae61688d5_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_4a4c904dd6a8a8d95a6b224ae61688d5_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_4a4c904dd6a8a8d95a6b224ae61688d5_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 197.87.175.4.in-addr.arpa udp
US 8.8.8.8:53 98.117.19.2.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
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
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp

Files

memory/1124-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1124-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

memory/1124-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

memory/1124-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

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

MD5 515ec6774b2ebb96c455e71a8969c58b
SHA1 1a86bd9d20fca94a1de602d466f0c815afce5221
SHA256 f87a1ec240720777122da5373a21dcbc0ad3aa6e11741a81ed125c5fc999c5b7
SHA512 7e8a50e5a707a2713dfc7a7da5f57fbde91cc9cb07136a2a90a8070d25cd4dd5f8baa398c28851df089760d7959fb26ac83ea2f942cff724e39152773b82501f

memory/1124-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/776-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/776-25-0x0000000000560000-0x0000000000566000-memory.dmp

memory/776-26-0x0000000000500000-0x000000000050F000-memory.dmp