Malware Analysis Report

2025-01-18 14:13

Sample ID 240613-d1ngdawepn
Target 2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker
SHA256 618e06e4e6ecaa0f7101d61b40215e664f192b49cda98a12e6f39faf97d730ee
Tags
upx
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

618e06e4e6ecaa0f7101d61b40215e664f192b49cda98a12e6f39faf97d730ee

Threat Level: Known bad

The file 2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Executes dropped EXE

Checks computer location settings

UPX packed file

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:28

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

UPX dump on OEP (original entry point)

Description Indicator Process Target
N/A N/A N/A N/A

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:28

Reported

2024-06-13 03:31

Platform

win7-20240611-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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

UPX dump on OEP (original entry point)

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\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe N/A

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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/2224-0-0x0000000008000000-0x000000000800E000-memory.dmp

memory/2224-2-0x0000000001C80000-0x0000000001C86000-memory.dmp

memory/2224-1-0x0000000001C50000-0x0000000001C56000-memory.dmp

memory/2224-9-0x0000000001C50000-0x0000000001C56000-memory.dmp

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

MD5 e89c576f01933dd45ed16233338f9b2b
SHA1 794bced9070020be64e92768bb7c6654cf481072
SHA256 3dbca9f478778421fe8e8d65084cb42badf7f676912cf531b8d0b56ff1574781
SHA512 0257072e514e76d10cd7e57b75d496686080f3b3670c86c065321b5bd7cb1dcdfba328e84d881362fc9d37420ad6b67f9d693eb5d18bf99fcbe2387aa9bfc4f2

memory/2224-16-0x0000000008000000-0x000000000800E000-memory.dmp

memory/2668-17-0x0000000008000000-0x000000000800E000-memory.dmp

memory/2668-19-0x0000000000550000-0x0000000000556000-memory.dmp

memory/2668-26-0x0000000000520000-0x0000000000526000-memory.dmp

memory/2668-27-0x0000000008000000-0x000000000800E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:28

Reported

2024-06-13 03:31

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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

UPX dump on OEP (original entry point)

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

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_2f5a0116d7f13cc25b50e89415f783f1_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

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_2f5a0116d7f13cc25b50e89415f783f1_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/4988-0-0x0000000008000000-0x000000000800E000-memory.dmp

memory/4988-1-0x0000000000560000-0x0000000000566000-memory.dmp

memory/4988-2-0x0000000002060000-0x0000000002066000-memory.dmp

memory/4988-9-0x0000000000560000-0x0000000000566000-memory.dmp

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

MD5 e89c576f01933dd45ed16233338f9b2b
SHA1 794bced9070020be64e92768bb7c6654cf481072
SHA256 3dbca9f478778421fe8e8d65084cb42badf7f676912cf531b8d0b56ff1574781
SHA512 0257072e514e76d10cd7e57b75d496686080f3b3670c86c065321b5bd7cb1dcdfba328e84d881362fc9d37420ad6b67f9d693eb5d18bf99fcbe2387aa9bfc4f2

memory/4988-18-0x0000000008000000-0x000000000800E000-memory.dmp

memory/2460-17-0x0000000008000000-0x000000000800E000-memory.dmp

memory/2460-20-0x0000000002070000-0x0000000002076000-memory.dmp

memory/2460-26-0x00000000021D0000-0x00000000021D6000-memory.dmp

memory/2460-27-0x0000000008000000-0x000000000800E000-memory.dmp