Malware Analysis Report

2025-01-18 14:25

Sample ID 240613-d1xeaaweqn
Target 2024-06-13_32df3f6714de680366a79b515e447c4c_cryptolocker
SHA256 809929e1020e3cc5cd002bf9738f490f03979d3269310f19610a7ca5d90b2f1b
Tags
upx
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

809929e1020e3cc5cd002bf9738f490f03979d3269310f19610a7ca5d90b2f1b

Threat Level: Known bad

The file 2024-06-13_32df3f6714de680366a79b515e447c4c_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

UPX packed file

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:29

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

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

upx
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 03:29

Reported

2024-06-13 03:31

Platform

win7-20240508-en

Max time kernel

147s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_32df3f6714de680366a79b515e447c4c_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

UPX dump on OEP (original entry point)

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_32df3f6714de680366a79b515e447c4c_cryptolocker.exe N/A

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_32df3f6714de680366a79b515e447c4c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_32df3f6714de680366a79b515e447c4c_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/2576-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2576-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2576-2-0x0000000000300000-0x0000000000306000-memory.dmp

memory/2576-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 deb8a0bfa7980b4075f99ef4bdf0d1d2
SHA1 6cd5ab4b76455c1caaf688f4679437b094f0abd2
SHA256 86ee0f2350259f325a4e55f238e216e4d8c0644d9ed909f54195fdfb71cf2643
SHA512 9f2cddc881a2fc93363384df5a41279f9e8f9fb1bad8ad127de2038eae6f332634cab0eaa5d185014e59222a4758ed5a9349b2d10fd1534e5a4b34d5414c7824

memory/2576-14-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1600-16-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1600-18-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/1600-25-0x0000000000420000-0x0000000000426000-memory.dmp

memory/1600-26-0x0000000000500000-0x000000000050F311-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:29

Reported

2024-06-13 03:31

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

156s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_32df3f6714de680366a79b515e447c4c_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

UPX dump on OEP (original entry point)

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\2024-06-13_32df3f6714de680366a79b515e447c4c_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

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_32df3f6714de680366a79b515e447c4c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_32df3f6714de680366a79b515e447c4c_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=3940,i,15142778360084620907,1763097090506261076,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8

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/2096-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2096-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2096-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/2096-9-0x00000000004E0000-0x00000000004E6000-memory.dmp

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

MD5 deb8a0bfa7980b4075f99ef4bdf0d1d2
SHA1 6cd5ab4b76455c1caaf688f4679437b094f0abd2
SHA256 86ee0f2350259f325a4e55f238e216e4d8c0644d9ed909f54195fdfb71cf2643
SHA512 9f2cddc881a2fc93363384df5a41279f9e8f9fb1bad8ad127de2038eae6f332634cab0eaa5d185014e59222a4758ed5a9349b2d10fd1534e5a4b34d5414c7824

memory/2096-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/4456-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/4456-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/4456-26-0x0000000000500000-0x000000000050F311-memory.dmp