Malware Analysis Report

2025-01-18 13:40

Sample ID 240613-d2zwsswfkl
Target 2024-06-13_3f588dacc2c029080322321f740dd773_cryptolocker
SHA256 a4d9c2f415ec9444198d95e45f6fc0245b326902e587ab0e5e86a5b561dea843
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

a4d9c2f415ec9444198d95e45f6fc0245b326902e587ab0e5e86a5b561dea843

Threat Level: Known bad

The file 2024-06-13_3f588dacc2c029080322321f740dd773_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

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 03:30

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 03:30

Reported

2024-06-13 03:33

Platform

win7-20240419-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3f588dacc2c029080322321f740dd773_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

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

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_3f588dacc2c029080322321f740dd773_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_3f588dacc2c029080322321f740dd773_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3f588dacc2c029080322321f740dd773_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/2288-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2288-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2288-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/2288-3-0x0000000000460000-0x0000000000466000-memory.dmp

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

MD5 648ce43a2a7f64bbdb288da5ef19ba22
SHA1 130bcf79a11a83f77cb59f30451a0e3f39c20cd7
SHA256 25df2892bbad327db5a1adf6566254f92895e625bb08b3eac7c872ca2349629b
SHA512 16bdf3b70827115940ba6bc2e96d309b03f1f1a3d621b15e8c477fd090ba6eafa3172001dd45f35a833fb076d9e45362ee21126c99163d76e676b528b24df1ca

memory/2288-15-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2148-24-0x0000000000320000-0x0000000000326000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:30

Reported

2024-06-13 03:33

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3f588dacc2c029080322321f740dd773_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

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_3f588dacc2c029080322321f740dd773_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_3f588dacc2c029080322321f740dd773_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_3f588dacc2c029080322321f740dd773_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/3772-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3772-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/3772-2-0x0000000002100000-0x0000000002106000-memory.dmp

memory/3772-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

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

MD5 648ce43a2a7f64bbdb288da5ef19ba22
SHA1 130bcf79a11a83f77cb59f30451a0e3f39c20cd7
SHA256 25df2892bbad327db5a1adf6566254f92895e625bb08b3eac7c872ca2349629b
SHA512 16bdf3b70827115940ba6bc2e96d309b03f1f1a3d621b15e8c477fd090ba6eafa3172001dd45f35a833fb076d9e45362ee21126c99163d76e676b528b24df1ca

memory/3008-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3008-19-0x0000000002000000-0x0000000002006000-memory.dmp

memory/3772-25-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3008-26-0x0000000000660000-0x0000000000666000-memory.dmp