Malware Analysis Report

2025-01-18 13:40

Sample ID 240613-d24vrasgkd
Target 2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker
SHA256 439758450f01d706be42f700251f74cf7d9afa81282c6c81a734cea6e0b2f8b4
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

439758450f01d706be42f700251f74cf7d9afa81282c6c81a734cea6e0b2f8b4

Threat Level: Known bad

The file 2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_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

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:31

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

2024-06-13 03:31

Reported

2024-06-13 03:33

Platform

win7-20240611-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_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\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_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/1152-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1152-1-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/1152-8-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/1152-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 4690cce6e4a9aaf1c6619ecdac12dd99
SHA1 fd4e5402de2d97fe2c8a185f18760a9b398e070e
SHA256 56df8b1101eb19da8fc7afeb732c99dd16b982c54332819e8db142861a7fa577
SHA512 76d51a0e39cde24aef3622e4fe2a48dd6025fc6f33adfe35591de6e22d7acea3070a91112f8287115db20e8278c6a8c6e5767aaedc6636d43bfb12b708013f00

memory/2144-16-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1152-14-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2144-18-0x00000000002B0000-0x00000000002B6000-memory.dmp

memory/2144-25-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2144-26-0x0000000000500000-0x000000000050B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:31

Reported

2024-06-13 03:33

Platform

win10v2004-20240226-en

Max time kernel

143s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_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\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3fd61b31baa1af575b0a5ad9d014cda5_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=1340 --field-trial-handle=2356,i,13261194862334667799,7441241219475888176,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
GB 142.250.178.10:443 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
GB 23.44.234.16:80 tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 76.234.34.23.in-addr.arpa udp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 4.173.189.20.in-addr.arpa udp

Files

memory/1140-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1140-1-0x0000000002190000-0x0000000002196000-memory.dmp

memory/1140-2-0x0000000002190000-0x0000000002196000-memory.dmp

memory/1140-3-0x00000000021B0000-0x00000000021B6000-memory.dmp

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

MD5 4690cce6e4a9aaf1c6619ecdac12dd99
SHA1 fd4e5402de2d97fe2c8a185f18760a9b398e070e
SHA256 56df8b1101eb19da8fc7afeb732c99dd16b982c54332819e8db142861a7fa577
SHA512 76d51a0e39cde24aef3622e4fe2a48dd6025fc6f33adfe35591de6e22d7acea3070a91112f8287115db20e8278c6a8c6e5767aaedc6636d43bfb12b708013f00

memory/1140-24-0x0000000000500000-0x000000000050B000-memory.dmp

memory/628-25-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/628-18-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/628-26-0x0000000000500000-0x000000000050B000-memory.dmp