Malware Analysis Report

2025-08-10 21:48

Sample ID 240606-zchf4sbf6y
Target 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker
SHA256 98fb975e0ac3a09b7ac20748637ea02229f57fb382afb79546bbfc73d433bd5d
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

98fb975e0ac3a09b7ac20748637ea02229f57fb382afb79546bbfc73d433bd5d

Threat Level: Known bad

The file 2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Loads dropped DLL

Executes dropped EXE

UPX packed file

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-06 20:34

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

2024-06-06 20:34

Reported

2024-06-06 20:36

Platform

win7-20240508-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_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\2024-06-06_be978a55287044b8de34e04fc66f8f5d_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\2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_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 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp

Files

memory/2180-1-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2180-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2180-2-0x0000000000380000-0x0000000000386000-memory.dmp

memory/2180-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2180-15-0x0000000000500000-0x0000000000510000-memory.dmp

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

MD5 4a5281e441edff7b7e1f88ab52e7d950
SHA1 96b0d22e96c6ece3f67f9f0278d66c70862b672a
SHA256 fc0345414b7a5f7a01f104d665af421aea02665649a2b802b94d2c1fddcb18ce
SHA512 53876dddc0d2e91f0c3fb706e25bc2a30599236b2b14d395158d6af4197e58811c632dbcc67d2dd881542b845e87dc0c823831c83e22de512a2ef411f59afe9f

memory/2932-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2932-19-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/2932-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2932-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-06 20:34

Reported

2024-06-06 20:36

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_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\2024-06-06_be978a55287044b8de34e04fc66f8f5d_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\2024-06-06_be978a55287044b8de34e04fc66f8f5d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_be978a55287044b8de34e04fc66f8f5d_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=3852,i,1067197275908310731,12785105794523264014,262144 --variations-seed-version --mojo-platform-channel-handle=4236 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 52.86.6.113:443 emrlogistics.com tcp
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 23.159.190.20.in-addr.arpa udp
BE 2.17.107.123:443 www.bing.com tcp
BE 2.17.107.123:443 www.bing.com tcp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 123.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 138.201.86.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp

Files

memory/3908-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3908-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/3908-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/3908-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 4a5281e441edff7b7e1f88ab52e7d950
SHA1 96b0d22e96c6ece3f67f9f0278d66c70862b672a
SHA256 fc0345414b7a5f7a01f104d665af421aea02665649a2b802b94d2c1fddcb18ce
SHA512 53876dddc0d2e91f0c3fb706e25bc2a30599236b2b14d395158d6af4197e58811c632dbcc67d2dd881542b845e87dc0c823831c83e22de512a2ef411f59afe9f

memory/3908-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4472-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4472-21-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/4472-27-0x00000000005B0000-0x00000000005B6000-memory.dmp

memory/4472-28-0x0000000000500000-0x0000000000510000-memory.dmp