Malware Analysis Report

2025-08-10 20:53

Sample ID 240825-hql8sasenm
Target 2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker
SHA256 1593884d23d28fd36e798c5d773c33d50f4af77dfa72d2d6ff7607e6624e1a16
Tags
upx discovery
score
7/10

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
7/10

SHA256

1593884d23d28fd36e798c5d773c33d50f4af77dfa72d2d6ff7607e6624e1a16

Threat Level: Shows suspicious behavior

The file 2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker was found to be: Shows suspicious behavior.

Malicious Activity Summary

upx discovery

Executes dropped EXE

UPX packed file

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-25 06:56

Signatures

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

2024-08-25 06:56

Reported

2024-08-25 06:59

Platform

win7-20240708-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe"

Signatures

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\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_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

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_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 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp

Files

memory/2648-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2648-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/2648-9-0x0000000000420000-0x0000000000426000-memory.dmp

memory/2648-1-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 30af4d342497b305293068ff3ccfc213
SHA1 d634ba6628eec4bc55e2bda5cb5c8dcbe190dc35
SHA256 daadd5281c9055ef2ff171b858ff1a0216b08a09569db12e7eaad629e84c2fbc
SHA512 f272b5193a2a496dd9eb15e269f1923a289b98e72ba459da22d4806020b30ca7366efd9feee973667ee599466a45cea7f4ebde3b7c63810a7ce885e7aa5d81c9

memory/2648-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2648-14-0x0000000000640000-0x0000000000650000-memory.dmp

memory/2836-18-0x0000000000380000-0x0000000000386000-memory.dmp

memory/2836-25-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2836-26-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-25 06:56

Reported

2024-08-25 06:59

Platform

win10v2004-20240802-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_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

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\asih.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-08-25_a8ad6cbe60ed001d334eae23d9bf7485_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 81.144.22.2.in-addr.arpa udp
US 8.8.8.8:53 69.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 192.142.123.92.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 73.144.22.2.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa 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 8.8.8.8:53 udp

Files

memory/4388-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4388-1-0x0000000000590000-0x0000000000596000-memory.dmp

memory/4388-2-0x0000000000590000-0x0000000000596000-memory.dmp

memory/4388-3-0x00000000005B0000-0x00000000005B6000-memory.dmp

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

MD5 30af4d342497b305293068ff3ccfc213
SHA1 d634ba6628eec4bc55e2bda5cb5c8dcbe190dc35
SHA256 daadd5281c9055ef2ff171b858ff1a0216b08a09569db12e7eaad629e84c2fbc
SHA512 f272b5193a2a496dd9eb15e269f1923a289b98e72ba459da22d4806020b30ca7366efd9feee973667ee599466a45cea7f4ebde3b7c63810a7ce885e7aa5d81c9

memory/4388-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3348-19-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/3348-25-0x00000000004C0000-0x00000000004C6000-memory.dmp

memory/3348-26-0x0000000000500000-0x0000000000510000-memory.dmp