Malware Analysis Report

2025-08-05 16:30

Sample ID 240611-dx96zatakm
Target 2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker
SHA256 01a500567465741efd75fd199171896fc019f3245297d81fd47612c0c160c0af
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

01a500567465741efd75fd199171896fc019f3245297d81fd47612c0c160c0af

Threat Level: Known bad

The file 2024-06-11_0f5d26fe590ca4022a495311c0537c4d_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 03:24

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 03:24

Reported

2024-06-11 03:27

Platform

win7-20240221-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_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\lossy.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_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/1632-0-0x0000000000320000-0x0000000000326000-memory.dmp

memory/1632-1-0x0000000000360000-0x0000000000366000-memory.dmp

memory/1632-8-0x0000000000320000-0x0000000000326000-memory.dmp

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

MD5 0bbdd1b5edcd9a7273756f727dd58bd2
SHA1 cb64ab7d70198489de116c35facae861cb50ba17
SHA256 1fbeec4e108a6ade92840c3424fafc96e3536c8473f38526bf748dca971249e4
SHA512 aa2e6571fe9974e15674c69dcfa5e039e50864cb84e7edfb49ec9e70d39b1fcefdc8495e03251f8356dbfbca2f220aef584f520e748bd1a4eb6aebefac1de0c1

memory/1680-22-0x0000000000440000-0x0000000000446000-memory.dmp

memory/1680-15-0x0000000001C90000-0x0000000001C96000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 03:24

Reported

2024-06-11 03:27

Platform

win10v2004-20240426-en

Max time kernel

150s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_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-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_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_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0f5d26fe590ca4022a495311c0537c4d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 154.239.44.20.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 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 206.23.85.13.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 6.160.77.104.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 14.227.111.52.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

Files

memory/1324-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1324-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1324-1-0x0000000002060000-0x0000000002066000-memory.dmp

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

MD5 0bbdd1b5edcd9a7273756f727dd58bd2
SHA1 cb64ab7d70198489de116c35facae861cb50ba17
SHA256 1fbeec4e108a6ade92840c3424fafc96e3536c8473f38526bf748dca971249e4
SHA512 aa2e6571fe9974e15674c69dcfa5e039e50864cb84e7edfb49ec9e70d39b1fcefdc8495e03251f8356dbfbca2f220aef584f520e748bd1a4eb6aebefac1de0c1

memory/2352-17-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

memory/2352-23-0x00000000005C0000-0x00000000005C6000-memory.dmp