Malware Analysis Report

2024-10-23 21:15

Sample ID 240125-v6v7vabgg4
Target 2024-01-25_b9165fd666d2870d92217ccc6ed5be23_cryptolocker
SHA256 48b8870e477a52ed5b39ebcd4bdce672d65c47be58f339d68d3bc18bc7743f13
Tags
upx 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

48b8870e477a52ed5b39ebcd4bdce672d65c47be58f339d68d3bc18bc7743f13

Threat Level: Known bad

The file 2024-01-25_b9165fd666d2870d92217ccc6ed5be23_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx kinsing loader

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Kinsing

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX packed file

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

2024-01-25 17:36

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

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

upx
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

150s

Max time network

140s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_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

UPX dump on OEP (original entry point)

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_b9165fd666d2870d92217ccc6ed5be23_cryptolocker.exe N/A

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_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 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 tcp

Files

memory/2424-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2424-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2424-2-0x0000000000200000-0x0000000000206000-memory.dmp

memory/2424-4-0x00000000001D0000-0x00000000001D6000-memory.dmp

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

MD5 ce1cb297faffc1eef6c0dde16cf960a6
SHA1 f82b7cdce18eb258883dcb3fdab7b6afd6a9dfc1
SHA256 519ee2a5e46314f05d0fe777b66760d7b3614e85f8a9ea790fc026b4343c1ef0
SHA512 3f1df6229d553fe5407eabd03d2bcffc25a596107ad639af59b59c2aee3421d766d4815061845e9fc02abdad361878780b936470ef2eef2dbeabab179fae58d8

memory/2424-16-0x0000000001EA0000-0x0000000001EB0000-memory.dmp

memory/2424-15-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2732-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2732-20-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/2732-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2424-27-0x0000000001EA0000-0x0000000001EB0000-memory.dmp

memory/2732-28-0x0000000000500000-0x000000000050F311-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

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_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
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

UPX dump on OEP (original entry point)

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_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

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-01-25_b9165fd666d2870d92217ccc6ed5be23_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 148.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 23.160.77.104.in-addr.arpa udp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 90.16.208.104.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp

Files

memory/4744-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/4744-1-0x0000000000830000-0x0000000000836000-memory.dmp

memory/4744-3-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/4744-2-0x0000000000830000-0x0000000000836000-memory.dmp

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

MD5 ce1cb297faffc1eef6c0dde16cf960a6
SHA1 f82b7cdce18eb258883dcb3fdab7b6afd6a9dfc1
SHA256 519ee2a5e46314f05d0fe777b66760d7b3614e85f8a9ea790fc026b4343c1ef0
SHA512 3f1df6229d553fe5407eabd03d2bcffc25a596107ad639af59b59c2aee3421d766d4815061845e9fc02abdad361878780b936470ef2eef2dbeabab179fae58d8

memory/3644-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/4744-18-0x0000000000500000-0x000000000050F311-memory.dmp

memory/3644-20-0x00000000007E0000-0x00000000007E6000-memory.dmp

memory/3644-23-0x0000000000660000-0x0000000000666000-memory.dmp

memory/3644-27-0x0000000000500000-0x000000000050F311-memory.dmp