Malware Analysis Report

2025-04-03 19:46

Sample ID 241110-g8sb3s1kdz
Target 2024-11-10_2212c70159d385c94a2f28bef398d253_cryptolocker
SHA256 8ec722e53aa066100121c9a24b7cec9e546d089eea18089260bed45a305136c9
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

8ec722e53aa066100121c9a24b7cec9e546d089eea18089260bed45a305136c9

Threat Level: Shows suspicious behavior

The file 2024-11-10_2212c70159d385c94a2f28bef398d253_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 06:28

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: behavioral2

Detonation Overview

Submitted

2024-11-10 06:28

Reported

2024-11-10 06:31

Platform

win10v2004-20241007-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_2212c70159d385c94a2f28bef398d253_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_2212c70159d385c94a2f28bef398d253_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_2212c70159d385c94a2f28bef398d253_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_2212c70159d385c94a2f28bef398d253_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_2212c70159d385c94a2f28bef398d253_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 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa 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

Files

memory/1244-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1244-1-0x00000000006F0000-0x00000000006F6000-memory.dmp

memory/1244-2-0x00000000006F0000-0x00000000006F6000-memory.dmp

memory/1244-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

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

MD5 52ce91267807fa1bb21c9fdb3103d391
SHA1 e1948cbef07f35036e29e42444b6ee71b499d10e
SHA256 b645b63adc0644025701676cd4a348a57a5ae99f5cc7f0cfbedd7b0ac51583fe
SHA512 eef5d6c94c2c49db095baeb32eeaac24e0b5aec293ad1f8a25d02845965801fdcf36e802e1198258f21480c20ae6aa7b5f39a6b3dd91ac94b25602da269221cd

memory/1244-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4932-19-0x0000000000490000-0x0000000000496000-memory.dmp

memory/4932-20-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/4932-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-10 06:28

Reported

2024-11-10 06:31

Platform

win7-20240903-en

Max time kernel

132s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_2212c70159d385c94a2f28bef398d253_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_2212c70159d385c94a2f28bef398d253_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_2212c70159d385c94a2f28bef398d253_cryptolocker.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-11-10_2212c70159d385c94a2f28bef398d253_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-11-10_2212c70159d385c94a2f28bef398d253_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/3056-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3056-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/3056-9-0x0000000000420000-0x0000000000426000-memory.dmp

memory/3056-1-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 52ce91267807fa1bb21c9fdb3103d391
SHA1 e1948cbef07f35036e29e42444b6ee71b499d10e
SHA256 b645b63adc0644025701676cd4a348a57a5ae99f5cc7f0cfbedd7b0ac51583fe
SHA512 eef5d6c94c2c49db095baeb32eeaac24e0b5aec293ad1f8a25d02845965801fdcf36e802e1198258f21480c20ae6aa7b5f39a6b3dd91ac94b25602da269221cd

memory/3056-14-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1136-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1136-24-0x0000000000260000-0x0000000000266000-memory.dmp

memory/1136-25-0x0000000000500000-0x0000000000510000-memory.dmp