Malware Analysis Report

2025-08-10 12:16

Sample ID 240610-1svxtasbnb
Target 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker
SHA256 aef91f1353bad4668398240f834efaf398f78470aae457cf40652a95e2492c72
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

aef91f1353bad4668398240f834efaf398f78470aae457cf40652a95e2492c72

Threat Level: Known bad

The file 2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Loads dropped DLL

UPX packed file

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 21:55

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

Detection of Cryptolocker Samples

Description Indicator Process Target
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

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 21:55

Reported

2024-06-10 21:57

Platform

win7-20240508-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_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\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_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\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_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/2120-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2120-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2120-2-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2120-9-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 8cb4c6c8902222c1902c8ddf9df2bc93
SHA1 8aa57fab00ddeab257fa206ede6ff4225c5e7960
SHA256 2e327eef4bef26d3cca80153f719e788c2e7fbfd644f7c48cc4355be2b3539ca
SHA512 26b7cf54d255a67d58ce58e88d1840f5ea7a00939589ce2ac933985e84cf554353ffaa52c5b06e0ed4aae9783da291502e52d9d6e13d2f9adaaccf000f379a68

memory/3016-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2120-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3016-26-0x00000000003C0000-0x00000000003C6000-memory.dmp

memory/3016-19-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/3016-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 21:55

Reported

2024-06-10 21:57

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_3ab14c8b12595cb67cbeaae80b7ce350_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 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 64.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp

Files

memory/3160-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3160-1-0x00000000020D0000-0x00000000020D6000-memory.dmp

memory/3160-2-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/3160-9-0x00000000020D0000-0x00000000020D6000-memory.dmp

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

MD5 8cb4c6c8902222c1902c8ddf9df2bc93
SHA1 8aa57fab00ddeab257fa206ede6ff4225c5e7960
SHA256 2e327eef4bef26d3cca80153f719e788c2e7fbfd644f7c48cc4355be2b3539ca
SHA512 26b7cf54d255a67d58ce58e88d1840f5ea7a00939589ce2ac933985e84cf554353ffaa52c5b06e0ed4aae9783da291502e52d9d6e13d2f9adaaccf000f379a68

memory/3160-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/716-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/716-22-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/716-21-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/716-28-0x0000000000500000-0x0000000000510000-memory.dmp