Malware Analysis Report

2025-01-18 12:59

Sample ID 240613-ea7b8staqe
Target 2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker
SHA256 ef01638c4ff90c47600f37240ca4069b52cad308be043865ddb426f008dd5b37
Tags
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

ef01638c4ff90c47600f37240ca4069b52cad308be043865ddb426f008dd5b37

Threat Level: Known bad

The file 2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:45

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:45

Reported

2024-06-13 03:47

Platform

win7-20240221-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker.exe"

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

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_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_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 54.209.32.212:443 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
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

Files

memory/2292-0-0x0000000000250000-0x0000000000256000-memory.dmp

memory/2292-1-0x0000000000480000-0x0000000000486000-memory.dmp

memory/2292-8-0x0000000000250000-0x0000000000256000-memory.dmp

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

MD5 5649c9068446432b41c5f1387b806f4f
SHA1 ff8c09569e2ef745c6573ba04d985104f93aedb9
SHA256 fa458ce0255c5f606583ee06a5068c193208302151450d8883be5eab5d7811b3
SHA512 1beb31188635d1112cf567c318f6fcaa907a6f6a7621c9a6ce0d5671d830d24168c50be33293af84d275a782e30178b3c743ee100217f3689013b6e89f93ba8a

memory/2976-15-0x00000000004E0000-0x00000000004E6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:45

Reported

2024-06-13 03:47

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker.exe"

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_958f88c4783c2eaa9cdc70270a6711d3_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/4152-0-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

memory/4152-1-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

memory/4152-8-0x0000000001FD0000-0x0000000001FD6000-memory.dmp

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

MD5 5649c9068446432b41c5f1387b806f4f
SHA1 ff8c09569e2ef745c6573ba04d985104f93aedb9
SHA256 fa458ce0255c5f606583ee06a5068c193208302151450d8883be5eab5d7811b3
SHA512 1beb31188635d1112cf567c318f6fcaa907a6f6a7621c9a6ce0d5671d830d24168c50be33293af84d275a782e30178b3c743ee100217f3689013b6e89f93ba8a

memory/2544-17-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2544-23-0x00000000004D0000-0x00000000004D6000-memory.dmp