Malware Analysis Report

2025-04-14 03:49

Sample ID 240612-xcskzavhqc
Target 2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker
SHA256 283a329004a5a20f34ba0370a84245fade9191d3037cb43f2a333911ea28f652
Tags
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

283a329004a5a20f34ba0370a84245fade9191d3037cb43f2a333911ea28f652

Threat Level: Known bad

The file 2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-12 18:42

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

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-12 18:42

Reported

2024-06-12 18:45

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe"

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2447855248-390457009-3660902674-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_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 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 216.197.17.2.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 200.197.17.2.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

Files

memory/2944-0-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2944-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

memory/2944-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

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

MD5 549a8d687b375a4a6886d65780375713
SHA1 21c556a1aeff89764e91dcad2f331910444c4031
SHA256 862dc6c6cbc5a8e8db068477b4b4f66597c646689338d61fb234a9d192804583
SHA512 6457545e49e33a5d2baec85ef39ffb7afe693c50a8450d6e2c0ea4fa2ee6249717534ef2c2ca67b015ec371547be6b24717598e5511504dc70559100963297df

memory/1560-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/1560-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-12 18:42

Reported

2024-06-12 18:45

Platform

win7-20240508-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe"

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

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_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-12_b6b23973a6c384054e42e3d3eb6ab651_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/2252-1-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2252-7-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2252-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

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

MD5 549a8d687b375a4a6886d65780375713
SHA1 21c556a1aeff89764e91dcad2f331910444c4031
SHA256 862dc6c6cbc5a8e8db068477b4b4f66597c646689338d61fb234a9d192804583
SHA512 6457545e49e33a5d2baec85ef39ffb7afe693c50a8450d6e2c0ea4fa2ee6249717534ef2c2ca67b015ec371547be6b24717598e5511504dc70559100963297df

memory/2600-15-0x0000000000470000-0x0000000000476000-memory.dmp

memory/2600-22-0x0000000000240000-0x0000000000246000-memory.dmp