Malware Analysis Report

2025-01-18 13:34

Sample ID 240613-dzpytawelq
Target 2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker
SHA256 522e30cf56e2ddaa4c3fb1ebbd99996fe0df7756a6fa7bcbff3b01821b9d1afd
Tags
upx
score
10/10

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
10/10

SHA256

522e30cf56e2ddaa4c3fb1ebbd99996fe0df7756a6fa7bcbff3b01821b9d1afd

Threat Level: Known bad

The file 2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

UPX packed file

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:26

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Detection of Cryptolocker Samples

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A

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

2024-06-13 03:26

Reported

2024-06-13 03:29

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

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\2024-06-13_1a7e78394b1343faccc2c00c0958e151_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

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_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 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp

Files

memory/2232-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2232-1-0x0000000000230000-0x0000000000236000-memory.dmp

memory/2232-2-0x0000000000270000-0x0000000000276000-memory.dmp

memory/2232-9-0x0000000000230000-0x0000000000236000-memory.dmp

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

MD5 17fb75cb323ea20c74afa94add739ec5
SHA1 ff78e5630489d49525213dbbc8299b3e56881241
SHA256 66059fe52a1a7bfc2346b89b1f30767fa1b832d76b7d51001f68ae90ecc189f3
SHA512 01982a05769085935872d0b68aaa67b047ce0242511c56522447e433f6a879e545f03345c37ce65a9651da116bf5db95cb097179da518d9c170d03ac1ad94e4d

memory/2232-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1248-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1248-19-0x0000000000480000-0x0000000000486000-memory.dmp

memory/1248-26-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1248-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:26

Reported

2024-06-13 03:29

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_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

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1a7e78394b1343faccc2c00c0958e151_cryptolocker.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4456,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=1304 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/1268-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1268-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/1268-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/1268-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

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

MD5 17fb75cb323ea20c74afa94add739ec5
SHA1 ff78e5630489d49525213dbbc8299b3e56881241
SHA256 66059fe52a1a7bfc2346b89b1f30767fa1b832d76b7d51001f68ae90ecc189f3
SHA512 01982a05769085935872d0b68aaa67b047ce0242511c56522447e433f6a879e545f03345c37ce65a9651da116bf5db95cb097179da518d9c170d03ac1ad94e4d

memory/4160-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1268-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4160-22-0x0000000000750000-0x0000000000756000-memory.dmp

memory/4160-21-0x0000000000620000-0x0000000000626000-memory.dmp

memory/4160-28-0x0000000000500000-0x0000000000510000-memory.dmp