Malware Analysis Report

2025-08-10 21:29

Sample ID 240527-w5jcbsed97
Target 2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker
SHA256 e5250f45f3c4b75b51c6ce0d695315569b62461323471bd022159c6be175ea84
Tags
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

e5250f45f3c4b75b51c6ce0d695315569b62461323471bd022159c6be175ea84

Threat Level: Known bad

The file 2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-27 18:30

Signatures

Detection of CryptoLocker Variants

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

Detection of Cryptolocker Samples

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

2024-05-27 18:30

Reported

2024-05-27 18:32

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_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

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\2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_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 52.71.57.184:443 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
US 54.209.32.212:443 emrlogistics.com tcp

Files

memory/2032-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2032-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

memory/2032-1-0x0000000000250000-0x0000000000256000-memory.dmp

memory/2032-9-0x0000000000250000-0x0000000000256000-memory.dmp

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

MD5 59dd7b3782d97be2069a85bfa9d76990
SHA1 f21baf32f3ec8ed531b94a702ce63835c6bb66f0
SHA256 64798fe77a7ef159e7739536b967ed60e621f07ff0475ba70df9062b4b9a1c5b
SHA512 cd1781b5a5ddd6eaba8021506c0809834a243a06d5ce57b4d222fa1f6b2abe57190932364decc714a17aac324fff78041f8aa229ad61ac7d2f46d3c218049507

memory/2032-13-0x0000000002840000-0x000000000284B000-memory.dmp

memory/2032-16-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2636-18-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/2636-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2636-26-0x0000000000500000-0x000000000050B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-27 18:30

Reported

2024-05-27 18:32

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

160s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_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

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

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\2024-05-27_53990de269da670c74a9e658a412c922_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-27_53990de269da670c74a9e658a412c922_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=4744,i,15142778360084620907,1763097090506261076,262144 --variations-seed-version --mojo-platform-channel-handle=4372 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
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 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
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/2012-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2012-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2012-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2012-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 59dd7b3782d97be2069a85bfa9d76990
SHA1 f21baf32f3ec8ed531b94a702ce63835c6bb66f0
SHA256 64798fe77a7ef159e7739536b967ed60e621f07ff0475ba70df9062b4b9a1c5b
SHA512 cd1781b5a5ddd6eaba8021506c0809834a243a06d5ce57b4d222fa1f6b2abe57190932364decc714a17aac324fff78041f8aa229ad61ac7d2f46d3c218049507

memory/2012-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/3272-19-0x0000000002080000-0x0000000002086000-memory.dmp

memory/3272-25-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/3272-26-0x0000000000500000-0x000000000050B000-memory.dmp