Malware Analysis Report

2025-08-10 21:48

Sample ID 240606-zb3qnabf5z
Target 2024-06-06_64f865ebb668ea62169180a00348b5da_cryptolocker
SHA256 adad6176dd4dd8cdd816d166d961893c177bb027fb88ec44a3655fde5ffb38fb
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

adad6176dd4dd8cdd816d166d961893c177bb027fb88ec44a3655fde5ffb38fb

Threat Level: Known bad

The file 2024-06-06_64f865ebb668ea62169180a00348b5da_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

UPX packed file

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-06 20:33

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

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

2024-06-06 20:33

Reported

2024-06-06 20:36

Platform

win7-20240508-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_64f865ebb668ea62169180a00348b5da_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\2024-06-06_64f865ebb668ea62169180a00348b5da_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\2024-06-06_64f865ebb668ea62169180a00348b5da_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_64f865ebb668ea62169180a00348b5da_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 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
US 34.205.242.146:443 emrlogistics.com tcp

Files

memory/1644-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1644-1-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1644-2-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/1644-3-0x00000000002A0000-0x00000000002A6000-memory.dmp

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

MD5 7bd7b80d3645adf76abca4bef2fd4ed3
SHA1 215020a608b3772ff72eb893135fff693d1919f7
SHA256 0af71c04e5c7e634953933e40559f22162cb167661f82d878fc638652abb39e5
SHA512 40494ca15e7da91970258038e39f2beb78e3949534438b1e884809cd896920410fdbf24a0478bc9e1d59b7fcd4bba8d1dab99480e6c6bbcb78f51a78c9df5228

memory/1644-15-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2984-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2984-18-0x0000000000470000-0x0000000000476000-memory.dmp

memory/2984-25-0x0000000000320000-0x0000000000326000-memory.dmp

memory/2984-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-06 20:33

Reported

2024-06-06 20:36

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_64f865ebb668ea62169180a00348b5da_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-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-06_64f865ebb668ea62169180a00348b5da_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\2024-06-06_64f865ebb668ea62169180a00348b5da_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-06_64f865ebb668ea62169180a00348b5da_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 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.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 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
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 8.8.8.8:53 13.179.89.13.in-addr.arpa udp

Files

memory/4592-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4592-1-0x00000000021C0000-0x00000000021C6000-memory.dmp

memory/4592-3-0x00000000020E0000-0x00000000020E6000-memory.dmp

memory/4592-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

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

MD5 7bd7b80d3645adf76abca4bef2fd4ed3
SHA1 215020a608b3772ff72eb893135fff693d1919f7
SHA256 0af71c04e5c7e634953933e40559f22162cb167661f82d878fc638652abb39e5
SHA512 40494ca15e7da91970258038e39f2beb78e3949534438b1e884809cd896920410fdbf24a0478bc9e1d59b7fcd4bba8d1dab99480e6c6bbcb78f51a78c9df5228

memory/4992-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4592-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4992-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/4992-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/4992-27-0x0000000000500000-0x0000000000510000-memory.dmp