Malware Analysis Report

2025-04-14 02:35

Sample ID 240603-mls8rabd8s
Target 2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker
SHA256 9d530fa85d11af5879f9dc5986b047239493e45e42a136a2c58002ab6e2bbf3c
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

9d530fa85d11af5879f9dc5986b047239493e45e42a136a2c58002ab6e2bbf3c

Threat Level: Known bad

The file 2024-06-03_7cab398bc4361489fa2d0b19469bc951_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

2024-06-03 10:33

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

2024-06-03 10:33

Reported

2024-06-03 10:36

Platform

win7-20240220-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_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\2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_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 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp

Files

memory/3040-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/3040-1-0x0000000000280000-0x0000000000286000-memory.dmp

memory/3040-8-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 ae642f5758662b964aa9b26a59921d4f
SHA1 69320cc673a88d30f811cbbad4f69becd911214e
SHA256 924a3d653f8ab907d57590bcee278d6cf8f347dee1c85ff02401de706a79c95a
SHA512 aa8677a0eac7fdc1d51b0ea1ce117ae7732fc90c13a5ee6ab73c33914ad362874a65721b5c193d34f2f902ce017ac5d97443f629c892f870ca61c1fbf9632f7a

memory/2484-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2484-22-0x0000000000250000-0x0000000000256000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-03 10:33

Reported

2024-06-03 10:36

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_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\2024-06-03_7cab398bc4361489fa2d0b19469bc951_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cab398bc4361489fa2d0b19469bc951_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 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 134.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp
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 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 63.141.182.52.in-addr.arpa udp

Files

memory/388-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/388-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/388-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 ae642f5758662b964aa9b26a59921d4f
SHA1 69320cc673a88d30f811cbbad4f69becd911214e
SHA256 924a3d653f8ab907d57590bcee278d6cf8f347dee1c85ff02401de706a79c95a
SHA512 aa8677a0eac7fdc1d51b0ea1ce117ae7732fc90c13a5ee6ab73c33914ad362874a65721b5c193d34f2f902ce017ac5d97443f629c892f870ca61c1fbf9632f7a

memory/3492-17-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

memory/3492-18-0x0000000002000000-0x0000000002006000-memory.dmp