Malware Analysis Report

2025-01-18 12:57

Sample ID 240613-e1ls8axfqp
Target 2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_cryptolocker
SHA256 8c3a02b2559c67ead4c8b6a855bd7ff142b8b591a989ead6c79f66db0db0ff8d
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

8c3a02b2559c67ead4c8b6a855bd7ff142b8b591a989ead6c79f66db0db0ff8d

Threat Level: Known bad

The file 2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Checks computer location settings

Loads dropped DLL

UPX packed file

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 04:24

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

Detection of Cryptolocker Samples

Description Indicator Process Target
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

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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 04:24

Reported

2024-06-13 04:27

Platform

win7-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_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\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_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 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/1368-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1368-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1368-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1368-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 95e2572170317fbc84d8b76f398088a3
SHA1 f6c82afa8231f57f0d4d1ca5022451697d9ce837
SHA256 86c62444224ae3b79e00a6efbda145b2a57de77a6696101a079738d1664a81aa
SHA512 65121a68d54a247a49ce3ce3a17d44336cc0ccab959c5ec99a29fc7c6292b4daa0ee3445450d4617dc6ab7d1819d20a4097e8d5aecb5a53d0026a353720bc77a

memory/1368-15-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1872-25-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/1872-18-0x0000000000290000-0x0000000000296000-memory.dmp

memory/1872-26-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 04:24

Reported

2024-06-13 04:27

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_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_2277c4ad06eb63cfdf6923b37a89d820_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2277c4ad06eb63cfdf6923b37a89d820_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 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/2176-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2176-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/2176-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2176-9-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 95e2572170317fbc84d8b76f398088a3
SHA1 f6c82afa8231f57f0d4d1ca5022451697d9ce837
SHA256 86c62444224ae3b79e00a6efbda145b2a57de77a6696101a079738d1664a81aa
SHA512 65121a68d54a247a49ce3ce3a17d44336cc0ccab959c5ec99a29fc7c6292b4daa0ee3445450d4617dc6ab7d1819d20a4097e8d5aecb5a53d0026a353720bc77a

memory/4480-19-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2176-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/4480-21-0x0000000000860000-0x0000000000866000-memory.dmp

memory/4480-27-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/4480-28-0x0000000000500000-0x000000000050F000-memory.dmp