Malware Analysis Report

2025-01-18 13:34

Sample ID 240613-d1ejgawenq
Target 2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker
SHA256 1882dfc808d58f3ab95458f69b19b3de4c37832c9b8461a88006de1d65337868
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

1882dfc808d58f3ab95458f69b19b3de4c37832c9b8461a88006de1d65337868

Threat Level: Known bad

The file 2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:28

Signatures

Detection of CryptoLocker Variants

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

2024-06-13 03:28

Reported

2024-06-13 03:30

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\lossy.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp

Files

memory/3800-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/3800-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/3800-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/3800-9-0x00000000005A0000-0x00000000005A6000-memory.dmp

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

MD5 91f232336db4a995a1af9596b7dadb7a
SHA1 b8ad2d0e02a3de92f6b93de06db043260b4efa1d
SHA256 b35dd1c88b5d0d06ddb50940acd8e560a243e9dfbf5cb6cd54a873ef8371924b
SHA512 cb94b044a11de1dccdc3d175fc269d5557ffe70987ccc5f50ab0399bba9bcb2e6d6b97015eba4f1bd77c3008da502edce532cdd41b8f26912b42fc434c1f839d

memory/3800-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/208-18-0x0000000008000000-0x000000000800A000-memory.dmp

memory/208-26-0x0000000008000000-0x000000000800A000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:28

Reported

2024-06-13 03:30

Platform

win7-20240221-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_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
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\lossy.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2d2804039bf69046c0860221650ab38d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 2ndry.com udp

Files

memory/1632-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/1632-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1632-3-0x0000000000280000-0x0000000000286000-memory.dmp

memory/1632-2-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 91f232336db4a995a1af9596b7dadb7a
SHA1 b8ad2d0e02a3de92f6b93de06db043260b4efa1d
SHA256 b35dd1c88b5d0d06ddb50940acd8e560a243e9dfbf5cb6cd54a873ef8371924b
SHA512 cb94b044a11de1dccdc3d175fc269d5557ffe70987ccc5f50ab0399bba9bcb2e6d6b97015eba4f1bd77c3008da502edce532cdd41b8f26912b42fc434c1f839d

memory/1632-13-0x00000000022D0000-0x00000000022DA000-memory.dmp

memory/1632-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/1912-19-0x0000000001C90000-0x0000000001C96000-memory.dmp

memory/1912-17-0x0000000008000000-0x000000000800A000-memory.dmp

memory/1912-26-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1912-27-0x0000000008000000-0x000000000800A000-memory.dmp