Malware Analysis Report

2025-08-05 16:32

Sample ID 240611-c2cwla1cmb
Target 2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker
SHA256 09da49c224362ada42401cb498b51ded042b803df53447a443a4fc1bfc97f17c
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

09da49c224362ada42401cb498b51ded042b803df53447a443a4fc1bfc97f17c

Threat Level: Known bad

The file 2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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

2024-06-11 02:33

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

2024-06-11 02:33

Reported

2024-06-11 02:36

Platform

win7-20231129-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe"

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

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\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
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 3.18.7.81:443 emrlogistics.com tcp

Files

memory/1720-1-0x0000000000340000-0x0000000000346000-memory.dmp

memory/1720-0-0x0000000000300000-0x0000000000306000-memory.dmp

memory/1720-8-0x0000000000300000-0x0000000000306000-memory.dmp

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

MD5 52799cfa88f102f30001567ecf1c56e9
SHA1 f55583bd76d5dc8248b1816f909fcbe7d479f62e
SHA256 81b0475007c49491b2d92732ad936d8958fb7d087cec766126f36fdeafffbd6d
SHA512 4d22ea0d5d8e1e78d0b259567d7f34343b1025b2e4db89375f65e682696db8da0c238c6143984c14813aa087e5ed99d75396b6bd79ba4702cf9dfb687ac6c47b

memory/2948-22-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2948-15-0x0000000000380000-0x0000000000386000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 02:33

Reported

2024-06-11 02:36

Platform

win10v2004-20240226-en

Max time kernel

142s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe"

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a8c588e03ecb3646f5f3fd763aedd801_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 --mojo-platform-channel-handle=1420 --field-trial-handle=1928,i,13242902252791919845,10377620236057253993,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 10.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 6.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
US 8.8.8.8:53 chromewebstore.googleapis.com udp
GB 216.58.212.234:443 chromewebstore.googleapis.com tcp
US 8.8.8.8:53 234.212.58.216.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 26.73.42.20.in-addr.arpa udp

Files

memory/652-0-0x00000000007B0000-0x00000000007B6000-memory.dmp

memory/652-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

memory/652-2-0x0000000002070000-0x0000000002076000-memory.dmp

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

MD5 52799cfa88f102f30001567ecf1c56e9
SHA1 f55583bd76d5dc8248b1816f909fcbe7d479f62e
SHA256 81b0475007c49491b2d92732ad936d8958fb7d087cec766126f36fdeafffbd6d
SHA512 4d22ea0d5d8e1e78d0b259567d7f34343b1025b2e4db89375f65e682696db8da0c238c6143984c14813aa087e5ed99d75396b6bd79ba4702cf9dfb687ac6c47b

memory/4692-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/4692-17-0x00000000007D0000-0x00000000007D6000-memory.dmp