Malware Analysis Report

2025-01-18 13:33

Sample ID 240613-d1akhswenl
Target 2024-06-13_2abb0b88e1821face2538bcd855f68e1_cryptolocker
SHA256 b16e5a4f4f149c3e738467c61ddd37251f9703b1f7cd59b32a8adf97ff2a1525
Tags
upx
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

b16e5a4f4f149c3e738467c61ddd37251f9703b1f7cd59b32a8adf97ff2a1525

Threat Level: Known bad

The file 2024-06-13_2abb0b88e1821face2538bcd855f68e1_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Executes dropped EXE

Loads dropped DLL

UPX packed file

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:27

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

2024-06-13 03:27

Reported

2024-06-13 03:30

Platform

win7-20240611-en

Max time kernel

148s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2abb0b88e1821face2538bcd855f68e1_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
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
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
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\2024-06-13_2abb0b88e1821face2538bcd855f68e1_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_2abb0b88e1821face2538bcd855f68e1_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2abb0b88e1821face2538bcd855f68e1_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/1932-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1932-1-0x0000000000250000-0x0000000000256000-memory.dmp

memory/1932-2-0x0000000000280000-0x0000000000286000-memory.dmp

memory/1932-9-0x0000000000250000-0x0000000000256000-memory.dmp

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

MD5 d63a3fd3f052a71eb8743c9cd256a806
SHA1 347e2d82fcd2c0bff35cd59fd19a4968b40d20ed
SHA256 44095e91de599c739ce91eb88d885c1712c7c98566a2fe5210ccd6b44ab0ca21
SHA512 de053a79eaeaf5725d9c2afd4aa1eaacb32359bc2b76ffe8dcc2098fe4896f163977c78c68769731fe120aca8fb12686e9b55af35499cca53f4b7cf555364f42

memory/1932-13-0x0000000002800000-0x0000000002810000-memory.dmp

memory/1932-16-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2352-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2352-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2352-19-0x0000000000200000-0x0000000000206000-memory.dmp

memory/2352-27-0x0000000000500000-0x000000000050F311-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:27

Reported

2024-06-13 03:30

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2abb0b88e1821face2538bcd855f68e1_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-200405930-3877336739-3533750831-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_2abb0b88e1821face2538bcd855f68e1_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\2024-06-13_2abb0b88e1821face2538bcd855f68e1_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2abb0b88e1821face2538bcd855f68e1_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 52.71.57.184:443 emrlogistics.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 136.32.126.40.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.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 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

Files

memory/660-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/660-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/660-3-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/660-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

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

MD5 d63a3fd3f052a71eb8743c9cd256a806
SHA1 347e2d82fcd2c0bff35cd59fd19a4968b40d20ed
SHA256 44095e91de599c739ce91eb88d885c1712c7c98566a2fe5210ccd6b44ab0ca21
SHA512 de053a79eaeaf5725d9c2afd4aa1eaacb32359bc2b76ffe8dcc2098fe4896f163977c78c68769731fe120aca8fb12686e9b55af35499cca53f4b7cf555364f42

memory/660-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/3912-18-0x0000000000500000-0x000000000050F311-memory.dmp

memory/3912-26-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/3912-20-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/3912-27-0x0000000000500000-0x000000000050F311-memory.dmp