Malware Analysis Report

2025-04-03 19:47

Sample ID 241110-hjqmma1mcy
Target 2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_cryptolocker
SHA256 4a2da7072c53ff8b1b3f759e32d0a1861c8aaee90ca2991db256756e5fa10eb8
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

4a2da7072c53ff8b1b3f759e32d0a1861c8aaee90ca2991db256756e5fa10eb8

Threat Level: Shows suspicious behavior

The file 2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

UPX packed file

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-10 06:46

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 06:46

Reported

2024-11-10 06:48

Platform

win7-20240903-en

Max time kernel

140s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_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_d3b05368ad42b99ced2c2bd7153513e0_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\asih.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_cryptolocker.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_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 3.19.116.195:443 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
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp

Files

memory/2600-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2600-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2600-2-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2600-3-0x0000000000480000-0x0000000000486000-memory.dmp

memory/2300-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2600-17-0x00000000029C0000-0x00000000029CF000-memory.dmp

memory/2600-16-0x0000000000500000-0x000000000050F000-memory.dmp

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

MD5 0fd8ff79fe983a020c87ac2743f14258
SHA1 f204d7e012eea2425568e1944577a0a0e5bcda5b
SHA256 a9d7186c352a8b4284ef58eb743e31974b388493a9b95afeef3b8ffd9a243da8
SHA512 7408839d6541e9b3a3da5d0229d8355dfd307cb6c994e89c8668a1955fdaa92c13158e45bd7bab32cea516fd97da3a48d8a21ce7b77cce70f1d4e24e0e59b065

memory/2300-20-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2300-28-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2600-27-0x00000000029C0000-0x00000000029CF000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-10 06:46

Reported

2024-11-10 06:48

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_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

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_d3b05368ad42b99ced2c2bd7153513e0_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_d3b05368ad42b99ced2c2bd7153513e0_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_d3b05368ad42b99ced2c2bd7153513e0_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 3.19.116.195:443 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 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 68.159.190.20.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.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

Files

memory/1528-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1528-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/1528-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/1528-3-0x0000000002070000-0x0000000002076000-memory.dmp

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

MD5 0fd8ff79fe983a020c87ac2743f14258
SHA1 f204d7e012eea2425568e1944577a0a0e5bcda5b
SHA256 a9d7186c352a8b4284ef58eb743e31974b388493a9b95afeef3b8ffd9a243da8
SHA512 7408839d6541e9b3a3da5d0229d8355dfd307cb6c994e89c8668a1955fdaa92c13158e45bd7bab32cea516fd97da3a48d8a21ce7b77cce70f1d4e24e0e59b065

memory/4528-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1528-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/4528-26-0x0000000000730000-0x0000000000736000-memory.dmp

memory/4528-21-0x0000000000750000-0x0000000000756000-memory.dmp

memory/4528-27-0x0000000000500000-0x000000000050F000-memory.dmp