Malware Analysis Report

2024-10-19 08:26

Sample ID 240125-wa339achck
Target 2024-01-25_2441cba914fdde916ae4be2cf9d95207_cryptolocker
SHA256 7c1b54c779bae89181ffca2fa3cef74e9cf19bf4b24b659376ee363a315b7990
Tags
kinsing loader
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

7c1b54c779bae89181ffca2fa3cef74e9cf19bf4b24b659376ee363a315b7990

Threat Level: Known bad

The file 2024-01-25_2441cba914fdde916ae4be2cf9d95207_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Detection of Cryptolocker Samples

Kinsing

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 17:43

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

2024-01-25 17:43

Reported

2024-01-25 17:46

Platform

win10v2004-20231222-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_cryptolocker.exe"

Signatures

Kinsing

loader kinsing

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

Detection of Cryptolocker Samples

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_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\2024-01-25_2441cba914fdde916ae4be2cf9d95207_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_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 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 18.134.221.88.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 udp

Files

memory/4172-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/4172-1-0x00000000007F0000-0x00000000007F6000-memory.dmp

memory/4172-2-0x00000000007F0000-0x00000000007F6000-memory.dmp

memory/4172-3-0x0000000000810000-0x0000000000816000-memory.dmp

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

MD5 5be6551569e68f0649cf0dc356886a33
SHA1 49c98ddf631730a92ff8c78b9e8ffa86d3fce8e4
SHA256 1044672623ac90004bf1fbf3bd534cc76931f67e081928ab89aa67e4ad965d12
SHA512 9c4d6b5e84f8a24938bb2b875dd29997a9770ac89c09a63cf3eabbe44bad623e04d126b9dd0411cef8034c93698f0d9a15564695cf740c0a337b72c089aa5ab1

memory/4172-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/4864-19-0x0000000002100000-0x0000000002106000-memory.dmp

memory/4864-21-0x00000000004E0000-0x00000000004E6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-01-25 17:43

Reported

2024-01-25 17:46

Platform

win7-20231215-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_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

Detection of Cryptolocker Samples

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\asih.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_2441cba914fdde916ae4be2cf9d95207_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/1996-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1996-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1996-2-0x0000000000270000-0x0000000000276000-memory.dmp

memory/1996-3-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 5be6551569e68f0649cf0dc356886a33
SHA1 49c98ddf631730a92ff8c78b9e8ffa86d3fce8e4
SHA256 1044672623ac90004bf1fbf3bd534cc76931f67e081928ab89aa67e4ad965d12
SHA512 9c4d6b5e84f8a24938bb2b875dd29997a9770ac89c09a63cf3eabbe44bad623e04d126b9dd0411cef8034c93698f0d9a15564695cf740c0a337b72c089aa5ab1

memory/1996-13-0x0000000002700000-0x000000000270B000-memory.dmp

memory/1996-16-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2124-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2124-19-0x0000000000300000-0x0000000000306000-memory.dmp

memory/2124-26-0x00000000002D0000-0x00000000002D6000-memory.dmp