Malware Analysis Report

2025-04-14 04:17

Sample ID 240609-jdxz7aff5z
Target 2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker
SHA256 4b5565c77b6cac62f7b7c9d08b1d2d146fc11771e1399bd496ea9ffadeb09386
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

4b5565c77b6cac62f7b7c9d08b1d2d146fc11771e1399bd496ea9ffadeb09386

Threat Level: Known bad

The file 2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

UPX packed file

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-09 07:34

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

2024-06-09 07:33

Reported

2024-06-09 07:37

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_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

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

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

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\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_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

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_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 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp

Files

memory/1040-0-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/1040-9-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/1040-8-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1040-1-0x0000000000290000-0x0000000000296000-memory.dmp

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

MD5 affa2bac4eb8ba007608599320064592
SHA1 3b44758d23cd6fd3e4f3faa81141bcb2bb432b8c
SHA256 488496c5d862442d7c3021ad6df81f4ba7b771ce761ea7c1a12a6d737054c01a
SHA512 e89c1487f722a9136645c7557f43e576385785cc5ec2b1caee35145fd864f9824f0d9f37772e7017f6f6748f2945282cf321e4ed3011fbd217696cc76a85f9e3

memory/2872-15-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2872-17-0x0000000000310000-0x0000000000316000-memory.dmp

memory/2872-24-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2872-25-0x0000000000500000-0x000000000050F311-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 07:33

Reported

2024-06-09 07:37

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_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

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

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_ad1d156e8bb19e69ee8d0d262537ad29_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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.159.190.20.in-addr.arpa udp
US 18.119.154.66:443 emrlogistics.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 8.8.8.8:53 13.227.111.52.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

Files

memory/2916-0-0x0000000000500000-0x000000000050F311-memory.dmp

memory/2916-1-0x0000000000730000-0x0000000000736000-memory.dmp

memory/2916-2-0x0000000000730000-0x0000000000736000-memory.dmp

memory/2916-3-0x0000000000750000-0x0000000000756000-memory.dmp

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

MD5 affa2bac4eb8ba007608599320064592
SHA1 3b44758d23cd6fd3e4f3faa81141bcb2bb432b8c
SHA256 488496c5d862442d7c3021ad6df81f4ba7b771ce761ea7c1a12a6d737054c01a
SHA512 e89c1487f722a9136645c7557f43e576385785cc5ec2b1caee35145fd864f9824f0d9f37772e7017f6f6748f2945282cf321e4ed3011fbd217696cc76a85f9e3

memory/1272-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

memory/1272-19-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/2916-17-0x0000000000500000-0x000000000050F311-memory.dmp

memory/1272-26-0x0000000000500000-0x000000000050F311-memory.dmp