Malware Analysis Report

2025-04-14 00:32

Sample ID 240601-w3b58sbg39
Target 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker
SHA256 59d43c2b92a4468250f47ff3a7ad3fae4e373b52738cfe996f868cd5cde93873
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

59d43c2b92a4468250f47ff3a7ad3fae4e373b52738cfe996f868cd5cde93873

Threat Level: Known bad

The file 2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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

2024-06-01 18:26

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

2024-06-01 18:26

Reported

2024-06-01 18:28

Platform

win7-20240508-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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

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

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\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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/2240-1-0x0000000000380000-0x0000000000386000-memory.dmp

memory/2240-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2240-8-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2240-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 171e99d82ad7ac6c97fcf4cb23850cdb
SHA1 fe34b9bb42ae690ad8a147fd48ba124b73758fd9
SHA256 884355d6ca0ec8af04be686b0a3ca3e5c2d2a6f750c9a51a28bb6727ed07769d
SHA512 102af9e4043c90fc2621211ee7001579d5b159f1ca9df504a18f373cf20c2bac2730f010e2f6071b9c94d839cf450955560be3521f91b7123a1eef96e2bc6a69

memory/2920-15-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2920-17-0x0000000000480000-0x0000000000486000-memory.dmp

memory/2920-24-0x0000000000240000-0x0000000000246000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 18:26

Reported

2024-06-01 18:28

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-01_54ccc81a7970aea370efe1fa08b304bc_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=4000,i,1999448010053300448,1112699187621658374,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
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 3.94.41.167:443 emrlogistics.com tcp
US 8.8.8.8:53 131.72.42.20.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp

Files

memory/5008-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/5008-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/5008-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/5008-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 171e99d82ad7ac6c97fcf4cb23850cdb
SHA1 fe34b9bb42ae690ad8a147fd48ba124b73758fd9
SHA256 884355d6ca0ec8af04be686b0a3ca3e5c2d2a6f750c9a51a28bb6727ed07769d
SHA512 102af9e4043c90fc2621211ee7001579d5b159f1ca9df504a18f373cf20c2bac2730f010e2f6071b9c94d839cf450955560be3521f91b7123a1eef96e2bc6a69

memory/3196-20-0x0000000001F80000-0x0000000001F86000-memory.dmp

memory/5008-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3196-26-0x0000000001F10000-0x0000000001F16000-memory.dmp

memory/3196-17-0x0000000000500000-0x000000000050F000-memory.dmp