Malware Analysis Report

2024-10-19 09:41

Sample ID 240613-pra1gayerd
Target 2024-06-13_3daccc27768288bbd1b898b683735b3c_cryptolocker
SHA256 04a66ede7d31fe8a9160d572e73c7eab423e0e213bc679c5a0c41e378664068d
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

04a66ede7d31fe8a9160d572e73c7eab423e0e213bc679c5a0c41e378664068d

Threat Level: Known bad

The file 2024-06-13_3daccc27768288bbd1b898b683735b3c_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

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 12:33

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 12:33

Reported

2024-06-13 12:35

Platform

win7-20240508-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_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_3daccc27768288bbd1b898b683735b3c_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_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/2988-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2988-1-0x0000000000340000-0x0000000000346000-memory.dmp

memory/2988-8-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 8980246213746517a338e4ff92176842
SHA1 4f03c5d500b9ef20f8846c857e108a29b39a8b13
SHA256 276d7e90f3d270b5934c5cc07d20814b96b1112799529e02e056701892a5db28
SHA512 86f52a248f2cb52e948910359b80b8f8852dba64c0ed9353177bfcd7a8a1de3188203365de7821b517254cf8727b8d6387c93fccf12a979a72f533aec682b7b3

memory/1320-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1320-15-0x0000000000460000-0x0000000000466000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 12:33

Reported

2024-06-13 12:35

Platform

win10v2004-20240611-en

Max time kernel

147s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_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-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_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_3daccc27768288bbd1b898b683735b3c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3daccc27768288bbd1b898b683735b3c_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 8.8.8.8:53 6.181.190.20.in-addr.arpa udp
US 8.8.8.8:53 145.83.221.88.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa 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 8.8.8.8:53 105.83.221.88.in-addr.arpa udp
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

Files

memory/3260-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/3260-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/3260-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 8980246213746517a338e4ff92176842
SHA1 4f03c5d500b9ef20f8846c857e108a29b39a8b13
SHA256 276d7e90f3d270b5934c5cc07d20814b96b1112799529e02e056701892a5db28
SHA512 86f52a248f2cb52e948910359b80b8f8852dba64c0ed9353177bfcd7a8a1de3188203365de7821b517254cf8727b8d6387c93fccf12a979a72f533aec682b7b3