Malware Analysis Report

2025-01-18 14:44

Sample ID 240613-ebnxaawhrk
Target 2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_cryptolocker
SHA256 4b0e143dc87aa0bbef1e64da1e3ca0d95d112dd87366b2a60299336c7170772d
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

4b0e143dc87aa0bbef1e64da1e3ca0d95d112dd87366b2a60299336c7170772d

Threat Level: Known bad

The file 2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:46

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 03:46

Reported

2024-06-13 03:48

Platform

win7-20240611-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_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_9bedb7a4eb1190eae75ca87a12142ddc_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_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/2312-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2312-1-0x0000000000330000-0x0000000000336000-memory.dmp

memory/2312-2-0x0000000000370000-0x0000000000376000-memory.dmp

memory/2312-8-0x0000000000330000-0x0000000000336000-memory.dmp

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

MD5 5294dad84c1fbb2b32b19818f708c2ce
SHA1 1a77e52c39f77c909834876e72105561abed9ac4
SHA256 7810617b000cefde50d22ec54811e7f860d6eeb22c6923aca996ada1002cdd6e
SHA512 c4aa111eadfad7d652c5ad48bbf8b5552d99b51bc7742514d307d0d8349b5c24a3386995186abf9a7c2971014976b8506e75ae0e82a378bb74406eb5ce29d596

memory/2312-13-0x0000000002830000-0x000000000283A000-memory.dmp

memory/2312-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2188-17-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2188-19-0x00000000002A0000-0x00000000002A6000-memory.dmp

memory/2188-26-0x00000000001E0000-0x00000000001E6000-memory.dmp

memory/2188-27-0x0000000008000000-0x000000000800A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:46

Reported

2024-06-13 03:48

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_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_9bedb7a4eb1190eae75ca87a12142ddc_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_9bedb7a4eb1190eae75ca87a12142ddc_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_9bedb7a4eb1190eae75ca87a12142ddc_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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 97.61.62.23.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 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.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 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 31.243.111.52.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 udp
US 8.8.8.8:53 udp

Files

memory/3644-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/3644-1-0x00000000020C0000-0x00000000020C6000-memory.dmp

memory/3644-3-0x00000000020E0000-0x00000000020E6000-memory.dmp

memory/3644-2-0x00000000020C0000-0x00000000020C6000-memory.dmp

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

MD5 5294dad84c1fbb2b32b19818f708c2ce
SHA1 1a77e52c39f77c909834876e72105561abed9ac4
SHA256 7810617b000cefde50d22ec54811e7f860d6eeb22c6923aca996ada1002cdd6e
SHA512 c4aa111eadfad7d652c5ad48bbf8b5552d99b51bc7742514d307d0d8349b5c24a3386995186abf9a7c2971014976b8506e75ae0e82a378bb74406eb5ce29d596

memory/1548-17-0x0000000008000000-0x000000000800A000-memory.dmp

memory/3644-18-0x0000000008000000-0x000000000800A000-memory.dmp

memory/1548-20-0x0000000001F60000-0x0000000001F66000-memory.dmp

memory/1548-26-0x0000000001F40000-0x0000000001F46000-memory.dmp

memory/1548-27-0x0000000008000000-0x000000000800A000-memory.dmp