Malware Analysis Report

2025-08-05 16:32

Sample ID 240611-c18lwa1clg
Target 2024-06-11_a3a9dd626a688327ca80c15d785ca282_cryptolocker
SHA256 7f4406ab86bc17d47f02ae640b5935358865109d4b8f2e5c67e5871c32582ca6
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

7f4406ab86bc17d47f02ae640b5935358865109d4b8f2e5c67e5871c32582ca6

Threat Level: Known bad

The file 2024-06-11_a3a9dd626a688327ca80c15d785ca282_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

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

win7-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a3a9dd626a688327ca80c15d785ca282_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_a3a9dd626a688327ca80c15d785ca282_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_a3a9dd626a688327ca80c15d785ca282_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a3a9dd626a688327ca80c15d785ca282_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 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/2424-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2424-2-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2424-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 3f264bc0acae630d3487fd93adc95135
SHA1 4c162fc3fe599152d13d6b40cf3b442a4ff963d3
SHA256 aa321c7bb31c9450c2df8e87d1a3b1f1391fbdf5de55e21014ee9dcd371cd839
SHA512 3f28694fd09b9d4c0e5431c0ed3ab6cc26d2a0aafa5dffc493b3a0f9de39fb4bb6bf6199ba9c78a338ed1cfa43ed75bfa68709d59e0be760e9fae43a69b86bba

memory/1228-22-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/1228-15-0x00000000003F0000-0x00000000003F6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 02:33

Reported

2024-06-11 02:36

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a3a9dd626a688327ca80c15d785ca282_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-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-11_a3a9dd626a688327ca80c15d785ca282_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_a3a9dd626a688327ca80c15d785ca282_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_a3a9dd626a688327ca80c15d785ca282_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=2700,i,14648456027158448592,4956305794400220180,262144 --variations-seed-version --mojo-platform-channel-handle=4136 /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/4932-0-0x0000000002140000-0x0000000002146000-memory.dmp

memory/4932-8-0x0000000002140000-0x0000000002146000-memory.dmp

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

MD5 3f264bc0acae630d3487fd93adc95135
SHA1 4c162fc3fe599152d13d6b40cf3b442a4ff963d3
SHA256 aa321c7bb31c9450c2df8e87d1a3b1f1391fbdf5de55e21014ee9dcd371cd839
SHA512 3f28694fd09b9d4c0e5431c0ed3ab6cc26d2a0aafa5dffc493b3a0f9de39fb4bb6bf6199ba9c78a338ed1cfa43ed75bfa68709d59e0be760e9fae43a69b86bba

memory/760-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/760-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/4932-1-0x0000000002060000-0x0000000002066000-memory.dmp