Malware Analysis Report

2025-08-05 16:33

Sample ID 240611-c1lr4s1cke
Target 2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker
SHA256 ad6c0e9b894b822a20759f6cf2aef48886bafdcc665fc302a08c8d9bae698d0d
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

ad6c0e9b894b822a20759f6cf2aef48886bafdcc665fc302a08c8d9bae698d0d

Threat Level: Known bad

The file 2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_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

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-11 02:32

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

2024-06-11 02:32

Reported

2024-06-11 02:35

Platform

win7-20240221-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_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
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\lossy.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 2ndry.com udp

Files

memory/1904-0-0x0000000000250000-0x0000000000256000-memory.dmp

memory/1904-2-0x0000000000250000-0x0000000000256000-memory.dmp

memory/1904-1-0x0000000008000000-0x000000000800A000-memory.dmp

memory/1904-3-0x00000000002D0000-0x00000000002D6000-memory.dmp

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

MD5 351d1426518a8bf32481a507eb0f11a0
SHA1 6d6ee9c5a2e85f63056631b26cb1ad37d69fec6f
SHA256 dd318392228c245615fb7a76ac8a7e08897b9e829bab55324f2ad5e7e5cf850b
SHA512 549a317f8f588098df8a5130b744f17f2768ac0ffd6c8993f2e164b0eab35043f9e51f6129332e338fd2a1847160e8b8f607239b349b7f665ebfd5406f66e6e6

memory/1904-14-0x0000000002290000-0x000000000229A000-memory.dmp

memory/2508-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2508-25-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2508-18-0x0000000000430000-0x0000000000436000-memory.dmp

memory/2508-26-0x0000000008000000-0x000000000800A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 02:32

Reported

2024-06-11 02:35

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

157s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_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

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\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_8884909fc08a1b94723e63ebbd6f2ad3_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\lossy.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 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp

Files

memory/4624-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/4624-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

memory/4624-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

memory/4624-9-0x00000000006A0000-0x00000000006A6000-memory.dmp

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

MD5 351d1426518a8bf32481a507eb0f11a0
SHA1 6d6ee9c5a2e85f63056631b26cb1ad37d69fec6f
SHA256 dd318392228c245615fb7a76ac8a7e08897b9e829bab55324f2ad5e7e5cf850b
SHA512 549a317f8f588098df8a5130b744f17f2768ac0ffd6c8993f2e164b0eab35043f9e51f6129332e338fd2a1847160e8b8f607239b349b7f665ebfd5406f66e6e6

memory/4624-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/3576-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/3576-25-0x0000000000590000-0x0000000000596000-memory.dmp

memory/3576-26-0x0000000008000000-0x000000000800A000-memory.dmp