Malware Analysis Report

2025-08-05 09:42

Sample ID 240611-bn9sqsycjf
Target 2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_cryptolocker
SHA256 c67dea1afa7f3d432a629c774762881ec1d83d118446ce5fc623102e93e93ea8
Tags
upx
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

c67dea1afa7f3d432a629c774762881ec1d83d118446ce5fc623102e93e93ea8

Threat Level: Known bad

The file 2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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 Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Executes dropped EXE

UPX packed file

Checks computer location settings

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-11 01:18

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: behavioral2

Detonation Overview

Submitted

2024-06-11 01:18

Reported

2024-06-11 01:21

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 6.160.77.104.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.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 23.236.111.52.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

Files

memory/3408-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3408-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/3408-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/3408-3-0x0000000000670000-0x0000000000676000-memory.dmp

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

MD5 f08b7c3e6c36d44ffef46bf2eff2c42e
SHA1 fcd5f4252e88d3e8c75208f799b47671aff45b6b
SHA256 8ac5fe0aeb16d569f6cfa127e15c2a80d0706eb3e948ad984010748514063591
SHA512 b9bbf5e59c1ba9213b934ba5949463c47c7ca64e49dd3a33fb7a8447c918bcc93aa0e253de34d3389ea1e30e0812e1ea16a256f9cd7299c3e0ed7e6eb6ec51c1

memory/3408-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/5000-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/5000-20-0x0000000002110000-0x0000000002116000-memory.dmp

memory/5000-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-11 01:18

Reported

2024-06-11 01:21

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_bbb707cda5d93d596ae50e1c1ba4f47d_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 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 52.86.6.113:443 emrlogistics.com tcp
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

Files

memory/2524-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2524-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2524-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2524-9-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 f08b7c3e6c36d44ffef46bf2eff2c42e
SHA1 fcd5f4252e88d3e8c75208f799b47671aff45b6b
SHA256 8ac5fe0aeb16d569f6cfa127e15c2a80d0706eb3e948ad984010748514063591
SHA512 b9bbf5e59c1ba9213b934ba5949463c47c7ca64e49dd3a33fb7a8447c918bcc93aa0e253de34d3389ea1e30e0812e1ea16a256f9cd7299c3e0ed7e6eb6ec51c1

memory/2308-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2524-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2308-26-0x0000000000370000-0x0000000000376000-memory.dmp

memory/2308-19-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/2308-27-0x0000000000500000-0x0000000000510000-memory.dmp