Malware Analysis Report

2025-01-18 14:34

Sample ID 240613-edlvpsxank
Target 2024-06-13_b58f811325c6b68c7dc02c24d6950f86_cryptolocker
SHA256 14512f682a657e89b4d507d2c0d189f05698f379b2738b1862ba561a57a9e1ec
Tags
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

14512f682a657e89b4d507d2c0d189f05698f379b2738b1862ba561a57a9e1ec

Threat Level: Known bad

The file 2024-06-13_b58f811325c6b68c7dc02c24d6950f86_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:49

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: behavioral1

Detonation Overview

Submitted

2024-06-13 03:49

Reported

2024-06-13 03:52

Platform

win7-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_b58f811325c6b68c7dc02c24d6950f86_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

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_b58f811325c6b68c7dc02c24d6950f86_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_b58f811325c6b68c7dc02c24d6950f86_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_b58f811325c6b68c7dc02c24d6950f86_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/2296-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2296-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2296-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2296-3-0x0000000000460000-0x0000000000466000-memory.dmp

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

MD5 16f17def4eacb40aa63a6169990f37e1
SHA1 adafcf2687e461bacfd145d25a75238ed2c9f3e2
SHA256 c28071f0760067c4f94f08769f9e10e8390274826106c76792a928d99810d84d
SHA512 2f993ed71e33017b51591ecddbbb01aa2828c396ba79c840bc4e3c5978471bf92dee93ffdc5920be73c54d7b84b3953cade258ef8e40dc5be9539447a77805ef

memory/2296-15-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2324-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2324-25-0x00000000002D0000-0x00000000002D6000-memory.dmp

memory/2324-18-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2324-26-0x0000000008000000-0x000000000800A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:49

Reported

2024-06-13 03:52

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_b58f811325c6b68c7dc02c24d6950f86_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-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_b58f811325c6b68c7dc02c24d6950f86_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_b58f811325c6b68c7dc02c24d6950f86_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_b58f811325c6b68c7dc02c24d6950f86_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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa 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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa 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 8.8.8.8:53 203.107.17.2.in-addr.arpa 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 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa 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/2220-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2220-1-0x0000000002050000-0x0000000002056000-memory.dmp

memory/2220-2-0x0000000002070000-0x0000000002076000-memory.dmp

memory/2220-9-0x0000000002050000-0x0000000002056000-memory.dmp

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

MD5 16f17def4eacb40aa63a6169990f37e1
SHA1 adafcf2687e461bacfd145d25a75238ed2c9f3e2
SHA256 c28071f0760067c4f94f08769f9e10e8390274826106c76792a928d99810d84d
SHA512 2f993ed71e33017b51591ecddbbb01aa2828c396ba79c840bc4e3c5978471bf92dee93ffdc5920be73c54d7b84b3953cade258ef8e40dc5be9539447a77805ef

memory/2220-17-0x0000000008000000-0x000000000800A000-memory.dmp

memory/452-18-0x0000000008000000-0x000000000800A000-memory.dmp

memory/452-26-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/452-27-0x0000000008000000-0x000000000800A000-memory.dmp