Malware Analysis Report

2024-10-23 21:15

Sample ID 240125-v6s3gsbgg3
Target 2024-01-25_b837865ab3bd08266b105a4fe1797dc0_cryptolocker
SHA256 ade65af2774459a828865f24c74ee6f922cdaaa01d0d7b23d5c5eed6ee0359c4
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

ade65af2774459a828865f24c74ee6f922cdaaa01d0d7b23d5c5eed6ee0359c4

Threat Level: Known bad

The file 2024-01-25_b837865ab3bd08266b105a4fe1797dc0_cryptolocker was found to be: Known bad.

Malicious Activity Summary

kinsing loader

Kinsing

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

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 17:36

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 17:36

Reported

2024-01-25 17:39

Platform

win7-20231215-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b837865ab3bd08266b105a4fe1797dc0_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_b837865ab3bd08266b105a4fe1797dc0_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_b837865ab3bd08266b105a4fe1797dc0_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b837865ab3bd08266b105a4fe1797dc0_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/2408-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/2408-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

memory/2408-8-0x00000000005F0000-0x00000000005F6000-memory.dmp

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

MD5 df286ca42d8ecfceb8cb858e4831730c
SHA1 195946f6528e996017cb4e9018258a1bc5d942a9
SHA256 fc2565736f1bdb62924243227c43471e57117e71ed7aed3e539fcc31fd8b8de3
SHA512 386fdca9c37b77cdbff1443bd539814bee23777518786527bb5ad6728f61ff9d647b45191ac12a5ab24d2aeb50642d938f59048592cf5844f0f755d4c10d35b7

memory/2336-15-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2336-19-0x0000000000270000-0x0000000000276000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-01-25 17:36

Reported

2024-01-25 17:39

Platform

win10v2004-20231222-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b837865ab3bd08266b105a4fe1797dc0_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_b837865ab3bd08266b105a4fe1797dc0_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_b837865ab3bd08266b105a4fe1797dc0_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b837865ab3bd08266b105a4fe1797dc0_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 180.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 74.32.126.40.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 13.86.106.20.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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 28.160.77.104.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 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 8.8.8.8:53 194.178.17.96.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 3.173.189.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp

Files

memory/2176-0-0x00000000022D0000-0x00000000022D6000-memory.dmp

memory/2176-2-0x0000000003150000-0x0000000003156000-memory.dmp

memory/2176-1-0x00000000022D0000-0x00000000022D6000-memory.dmp

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

MD5 df286ca42d8ecfceb8cb858e4831730c
SHA1 195946f6528e996017cb4e9018258a1bc5d942a9
SHA256 fc2565736f1bdb62924243227c43471e57117e71ed7aed3e539fcc31fd8b8de3
SHA512 386fdca9c37b77cdbff1443bd539814bee23777518786527bb5ad6728f61ff9d647b45191ac12a5ab24d2aeb50642d938f59048592cf5844f0f755d4c10d35b7

memory/4428-17-0x0000000003010000-0x0000000003016000-memory.dmp

memory/4428-22-0x0000000002210000-0x0000000002216000-memory.dmp