Malware Analysis Report

2025-04-14 04:37

Sample ID 240612-vqv7xasepc
Target 2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_cryptolocker
SHA256 5e635268296ac6a3b03e3b1d5997a6bd0fb30ccd6234c3cd9a0b19dc6fee0b99
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

5e635268296ac6a3b03e3b1d5997a6bd0fb30ccd6234c3cd9a0b19dc6fee0b99

Threat Level: Known bad

The file 2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Checks computer location settings

UPX packed file

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-12 17:12

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

2024-06-12 17:12

Reported

2024-06-12 17:14

Platform

win7-20240419-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_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
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
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
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\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_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/2432-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2432-1-0x0000000000320000-0x0000000000326000-memory.dmp

memory/2432-2-0x0000000000360000-0x0000000000366000-memory.dmp

memory/2432-9-0x0000000000320000-0x0000000000326000-memory.dmp

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

MD5 2b051555cfb66eb220d983685155453e
SHA1 9f1c9157314b9b5ead0fd7d9997f1d90f18741d0
SHA256 342bcea57e9e918ad1b4a236e8b4b36020484b1fe47465c8651f33fb91eab150
SHA512 3a3f1175a62e6ed45f9f9ca85cfce4a377d98cd997022ce324a0e9eb5356137ecfeef45bcd53de0c1d2321e54f4295782c0b5df035b746669c38fd6ba51f89d6

memory/2432-13-0x0000000001E60000-0x0000000001E70000-memory.dmp

memory/2164-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2432-16-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2164-19-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2164-26-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/2164-27-0x0000000000500000-0x000000000050F311-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 17:12

Reported

2024-06-12 17:14

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_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\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_8bcfade2d2d3208d3984e37bc9c9be41_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 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
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/1076-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1076-1-0x0000000000840000-0x0000000000846000-memory.dmp

memory/1076-2-0x0000000000840000-0x0000000000846000-memory.dmp

memory/1076-3-0x0000000002070000-0x0000000002076000-memory.dmp

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

MD5 2b051555cfb66eb220d983685155453e
SHA1 9f1c9157314b9b5ead0fd7d9997f1d90f18741d0
SHA256 342bcea57e9e918ad1b4a236e8b4b36020484b1fe47465c8651f33fb91eab150
SHA512 3a3f1175a62e6ed45f9f9ca85cfce4a377d98cd997022ce324a0e9eb5356137ecfeef45bcd53de0c1d2321e54f4295782c0b5df035b746669c38fd6ba51f89d6

memory/1076-16-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1464-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/1464-25-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1464-26-0x0000000000500000-0x000000000050F311-memory.dmp