Malware Analysis Report

2025-01-18 02:36

Sample ID 240125-s2mnsshhb2
Target 2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker
SHA256 483ff53cc00c6235f8b83e319990075fc0865419c19c5eebd47c911f89e8b6a8
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

483ff53cc00c6235f8b83e319990075fc0865419c19c5eebd47c911f89e8b6a8

Threat Level: Known bad

The file 2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Kinsing

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-01-25 15:37

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 15:37

Reported

2024-01-25 15:39

Platform

win7-20231215-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7276bc3600231a300f2adba942672b79_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_7276bc3600231a300f2adba942672b79_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7276bc3600231a300f2adba942672b79_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/1860-0-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

memory/1860-1-0x0000000001BD0000-0x0000000001BD6000-memory.dmp

memory/1860-8-0x0000000001BC0000-0x0000000001BC6000-memory.dmp

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

MD5 c84c8eb182f9ef6ed99097cc356f4803
SHA1 926d86cf38a18014b330e1d1a509b6b2a49e2f6d
SHA256 c2dbc92d10e4900ccb46e6e8b0884402b618cc2946bc2c66d90666d00168a8ff
SHA512 54e49c220619d1a76f8100d405309ce0da5eb43a1f8005bb1288f9be9577ac02c0ab7b439cc7f426fc334ac8e02dea179b4a70a28edd305159e6d4a97d64e6bb

memory/1960-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

memory/1960-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 15:37

Reported

2024-01-25 15:39

Platform

win10v2004-20231215-en

Max time kernel

151s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7276bc3600231a300f2adba942672b79_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-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_7276bc3600231a300f2adba942672b79_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_7276bc3600231a300f2adba942672b79_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_7276bc3600231a300f2adba942672b79_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.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 29.243.111.52.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 8.8.8.8:53 123.10.44.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp

Files

memory/4008-0-0x0000000002260000-0x0000000002266000-memory.dmp

memory/4008-1-0x0000000002260000-0x0000000002266000-memory.dmp

memory/4008-2-0x0000000003150000-0x0000000003156000-memory.dmp

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

MD5 c84c8eb182f9ef6ed99097cc356f4803
SHA1 926d86cf38a18014b330e1d1a509b6b2a49e2f6d
SHA256 c2dbc92d10e4900ccb46e6e8b0884402b618cc2946bc2c66d90666d00168a8ff
SHA512 54e49c220619d1a76f8100d405309ce0da5eb43a1f8005bb1288f9be9577ac02c0ab7b439cc7f426fc334ac8e02dea179b4a70a28edd305159e6d4a97d64e6bb

memory/3268-18-0x0000000002ED0000-0x0000000002ED6000-memory.dmp

memory/3268-17-0x0000000002D60000-0x0000000002D66000-memory.dmp