Malware Analysis Report

2025-04-03 19:49

Sample ID 241110-hfvr6s1lf1
Target 2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_cryptolocker
SHA256 e5efd74a4e3296d915a14fd0618a99df2477ae9335d3bc13f05bfa1286dd96ef
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

e5efd74a4e3296d915a14fd0618a99df2477ae9335d3bc13f05bfa1286dd96ef

Threat Level: Shows suspicious behavior

The file 2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_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

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 06:41

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 06:41

Reported

2024-11-10 06:43

Platform

win7-20240903-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_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_8f1f9843bff7ff7d349f7f3016f20eb7_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

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_8f1f9843bff7ff7d349f7f3016f20eb7_cryptolocker.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_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/1964-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1964-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1964-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1964-2-0x0000000000280000-0x0000000000286000-memory.dmp

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

MD5 9c7c74e78c9e4fc9eb69369ce0d1ce60
SHA1 af8e732e992a43dd12bc0190de498945b4144b6b
SHA256 ee68eac49fc5d7662a9701b94c0eeb9c7588b9373bd3579d80aea60d43551340
SHA512 acafc458d356c9a72ab3f6146d66665bfb38f920f1460e873703beca9b104b592f1a5c9e6c884a43ef39d90cc52b6825b1f1187bc7bb66e12325fb6478713e20

memory/1964-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1964-14-0x00000000006E0000-0x00000000006F0000-memory.dmp

memory/2896-25-0x0000000000500000-0x0000000000510000-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

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_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_8f1f9843bff7ff7d349f7f3016f20eb7_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_8f1f9843bff7ff7d349f7f3016f20eb7_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_8f1f9843bff7ff7d349f7f3016f20eb7_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 8.8.8.8:53 228.249.119.40.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 83.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.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 8.8.8.8:53 206.23.85.13.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 8.8.8.8:53 240.221.184.93.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 14.227.111.52.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
US 8.8.8.8:53 udp

Files

memory/4732-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4732-1-0x0000000000590000-0x0000000000596000-memory.dmp

memory/4732-2-0x0000000000590000-0x0000000000596000-memory.dmp

memory/4732-3-0x00000000005B0000-0x00000000005B6000-memory.dmp

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

MD5 9c7c74e78c9e4fc9eb69369ce0d1ce60
SHA1 af8e732e992a43dd12bc0190de498945b4144b6b
SHA256 ee68eac49fc5d7662a9701b94c0eeb9c7588b9373bd3579d80aea60d43551340
SHA512 acafc458d356c9a72ab3f6146d66665bfb38f920f1460e873703beca9b104b592f1a5c9e6c884a43ef39d90cc52b6825b1f1187bc7bb66e12325fb6478713e20

memory/4732-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/976-19-0x0000000000690000-0x0000000000696000-memory.dmp

memory/976-20-0x00000000020E0000-0x00000000020E6000-memory.dmp

memory/976-26-0x0000000000500000-0x0000000000510000-memory.dmp