Malware Analysis Report

2025-01-18 14:04

Sample ID 240613-dd7azavhrq
Target 2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker
SHA256 71c870e5917f1267c6c70fcbd3937e88210a72296f6ffd904feb1949f5b2bd96
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

71c870e5917f1267c6c70fcbd3937e88210a72296f6ffd904feb1949f5b2bd96

Threat Level: Known bad

The file 2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

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 02:54

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 02:54

Reported

2024-06-13 02:57

Platform

win7-20240419-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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

Files

memory/2036-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2036-1-0x00000000003F0000-0x00000000003F6000-memory.dmp

memory/2036-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

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

MD5 dcbe97c20f574391ffce247103b9b645
SHA1 4a8c64548d99028999efc412c797444919ffa4b8
SHA256 415e30dfd53d4d78229cf8b018eec97ebcfdfec2d4d99b3f32cbd5e941258434
SHA512 296939c94c6a9fa2c7a929d3568db039e93ce6f94688978af5e8e230817f276ae2d79ccb801e256c6e8f43e61e1475baa39426f53d43f181b6ff70324ee78b9b

memory/2544-15-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2544-22-0x00000000001D0000-0x00000000001D6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 02:54

Reported

2024-06-13 02:57

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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_7749bc1e7c42c536d05977b77fe9b7df_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_7749bc1e7c42c536d05977b77fe9b7df_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 8.8.8.8.in-addr.arpa 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
US 8.8.8.8:53 bestccc.com udp

Files

memory/1500-0-0x00000000005B0000-0x00000000005B6000-memory.dmp

memory/1500-2-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/1500-8-0x00000000005B0000-0x00000000005B6000-memory.dmp

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

MD5 dcbe97c20f574391ffce247103b9b645
SHA1 4a8c64548d99028999efc412c797444919ffa4b8
SHA256 415e30dfd53d4d78229cf8b018eec97ebcfdfec2d4d99b3f32cbd5e941258434
SHA512 296939c94c6a9fa2c7a929d3568db039e93ce6f94688978af5e8e230817f276ae2d79ccb801e256c6e8f43e61e1475baa39426f53d43f181b6ff70324ee78b9b

memory/456-17-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/456-23-0x0000000000660000-0x0000000000666000-memory.dmp