Malware Analysis Report

2024-10-19 09:41

Sample ID 240613-ptzfvashrj
Target 2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker
SHA256 912a8453b6205de6ff53d4cb0200c7c1d39f591ef450c11d53d071ada9ef160c
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

912a8453b6205de6ff53d4cb0200c7c1d39f591ef450c11d53d071ada9ef160c

Threat Level: Known bad

The file 2024-06-13_750e223990dce61bee55f156e58d39c6_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

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 12:37

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 12:37

Reported

2024-06-13 12:40

Platform

win7-20240221-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_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\misid.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
IN 103.91.187.97:443 bestccc.com tcp
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IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp
IN 103.91.187.97:443 bestccc.com tcp

Files

memory/1908-0-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1908-1-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1908-2-0x0000000000360000-0x0000000000366000-memory.dmp

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

MD5 8134872cbbc5197cddc08986b30ef99e
SHA1 2482d977db5112ffd15c6122891ed117f8052eb3
SHA256 2a95513d67b737d780c7a3e55869f885fc6be6ee94034019501496d431257ca5
SHA512 4e27499691959ba44cec1319d1e1ef308c2771b08fea8ea29a5780fdb7fd26d19b212471430eaf776c287260178dadc70e0a09f69610b6b6bfb8e2302d492dc7

memory/2472-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

memory/2472-22-0x00000000002C0000-0x00000000002C6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 12:37

Reported

2024-06-13 12:40

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_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-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_750e223990dce61bee55f156e58d39c6_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp
US 8.8.8.8:53 bestccc.com udp

Files

memory/4184-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/4184-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/4184-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 8134872cbbc5197cddc08986b30ef99e
SHA1 2482d977db5112ffd15c6122891ed117f8052eb3
SHA256 2a95513d67b737d780c7a3e55869f885fc6be6ee94034019501496d431257ca5
SHA512 4e27499691959ba44cec1319d1e1ef308c2771b08fea8ea29a5780fdb7fd26d19b212471430eaf776c287260178dadc70e0a09f69610b6b6bfb8e2302d492dc7

memory/388-17-0x0000000002000000-0x0000000002006000-memory.dmp

memory/388-23-0x0000000001FE0000-0x0000000001FE6000-memory.dmp