Malware Analysis Report

2024-10-19 08:27

Sample ID 240125-v47svscffj
Target 2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker
SHA256 e6d3aed6a3736cae8fc9dcf0840027917dadd03af9d53c32b0e3db7c023b9871
Tags
kinsing loader
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

e6d3aed6a3736cae8fc9dcf0840027917dadd03af9d53c32b0e3db7c023b9871

Threat Level: Known bad

The file 2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Detection of CryptoLocker Variants

Kinsing

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

2024-01-25 17:33

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

2024-01-25 17:33

Reported

2024-01-25 17:36

Platform

win7-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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\hasfj.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 mytarta.com udp

Files

memory/1992-0-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/1992-1-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

memory/1992-4-0x00000000004F0000-0x00000000004F6000-memory.dmp

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

MD5 585ecf172e8b9efac582e4732d0911da
SHA1 b3db62eecb985b0af6e5250dbf8e0d61e8e1cfdb
SHA256 760459c5a2a4f7ec497e6cfda15136d811a66104672690fd0d67f346dcbed6cf
SHA512 1fd88708884dff26982516c608555f316d8ec47320e00905e8a1b2b7458b62c679b1f334601aec5f256ba05dcc7fca03c75921fa23811047b911ff1386a938bc

memory/2384-15-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/2384-22-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:33

Reported

2024-01-25 17:36

Platform

win10v2004-20231222-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe"

Signatures

Kinsing

loader kinsing

Detection of CryptoLocker Variants

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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_9b5c4613dc241dfa68ecfa73cc7cf1d3_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 138.91.171.81:80 tcp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.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 8.8.8.8:53 145.71.91.104.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp

Files

memory/4712-0-0x0000000002350000-0x0000000002356000-memory.dmp

memory/4712-1-0x0000000002350000-0x0000000002356000-memory.dmp

memory/4712-2-0x0000000003150000-0x0000000003156000-memory.dmp

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

MD5 585ecf172e8b9efac582e4732d0911da
SHA1 b3db62eecb985b0af6e5250dbf8e0d61e8e1cfdb
SHA256 760459c5a2a4f7ec497e6cfda15136d811a66104672690fd0d67f346dcbed6cf
SHA512 1fd88708884dff26982516c608555f316d8ec47320e00905e8a1b2b7458b62c679b1f334601aec5f256ba05dcc7fca03c75921fa23811047b911ff1386a938bc

memory/3312-17-0x0000000003010000-0x0000000003016000-memory.dmp

memory/3312-23-0x00000000020A0000-0x00000000020A6000-memory.dmp