Malware Analysis Report

2025-01-18 13:20

Sample ID 240613-dxk7vasfjb
Target 2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker
SHA256 7a38f22482a796d0592e8ecd2dd85848ddd8a461abf8fa8322182ec45660e56d
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

7a38f22482a796d0592e8ecd2dd85848ddd8a461abf8fa8322182ec45660e56d

Threat Level: Known bad

The file 2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Modifies system certificate store

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:23

Signatures

Detection of CryptoLocker Variants

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 03:23

Reported

2024-06-13 03:25

Platform

win7-20240221-en

Max time kernel

117s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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\pissa.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe N/A

Enumerates physical storage devices

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\pissa.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\pissa.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\pissa.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 el-padrino.com udp
HK 154.215.77.110:443 el-padrino.com tcp

Files

memory/1984-0-0x0000000000290000-0x0000000000296000-memory.dmp

memory/1984-1-0x0000000000580000-0x0000000000586000-memory.dmp

memory/1984-8-0x0000000000290000-0x0000000000296000-memory.dmp

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

MD5 472b18195c558285aeba9ef5de876039
SHA1 ad25d71dbe52eb50b8e6596b3d426bf943990348
SHA256 783df432f690104184732ee7224c0e42c272087025bebc39547b8902c21dc950
SHA512 3b90f9101cc7efb3ec9a5b24fe3119b7ca697aaec04ceb44e5085c328c003b996dde56f4eb23014cd329d4e3adc57d0bf3ac59bfd0e95b3074c18aa21dcb3f57

memory/2936-15-0x00000000004C0000-0x00000000004C6000-memory.dmp

memory/2936-22-0x00000000004B0000-0x00000000004B6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:23

Reported

2024-06-13 03:25

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe"

Signatures

Detection of CryptoLocker Variants

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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\pissa.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_088c813a9e7e23de2397100e15dfc07b_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\pissa.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp
US 8.8.8.8:53 el-padrino.com udp

Files

memory/4716-0-0x0000000000640000-0x0000000000646000-memory.dmp

memory/4716-1-0x0000000002190000-0x0000000002196000-memory.dmp

memory/4716-8-0x0000000000640000-0x0000000000646000-memory.dmp

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

MD5 472b18195c558285aeba9ef5de876039
SHA1 ad25d71dbe52eb50b8e6596b3d426bf943990348
SHA256 783df432f690104184732ee7224c0e42c272087025bebc39547b8902c21dc950
SHA512 3b90f9101cc7efb3ec9a5b24fe3119b7ca697aaec04ceb44e5085c328c003b996dde56f4eb23014cd329d4e3adc57d0bf3ac59bfd0e95b3074c18aa21dcb3f57

memory/3744-17-0x0000000003010000-0x0000000003016000-memory.dmp

memory/3744-23-0x0000000002120000-0x0000000002126000-memory.dmp