Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-d7mtesshnh
Target 2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker
SHA256 e1c25b11be4a308c5592df7fa457367a57a2a244721a41913ba24ba51dda0044
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

e1c25b11be4a308c5592df7fa457367a57a2a244721a41913ba24ba51dda0044

Threat Level: Known bad

The file 2024-06-13_78837ed92a97b8f1618b356d23594248_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

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:39

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 03:39

Reported

2024-06-13 03:41

Platform

win7-20240611-en

Max time kernel

143s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_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\hurok.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 gemlttwi.com udp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
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US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp
US 192.185.35.56:443 gemlttwi.com tcp

Files

memory/2372-0-0x0000000000230000-0x0000000000236000-memory.dmp

memory/2372-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/2372-8-0x0000000000230000-0x0000000000236000-memory.dmp

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

MD5 9401e09fd976fd809ec1290909b2a4c6
SHA1 002cd5b0da9d8fb2b7e7de52ab2ed099fdcc04a0
SHA256 fe58a072153e47c9007fa18b8b9e8165cc9cb72a041e3fa6bd41ff6252063fc7
SHA512 1570204410ef2ce56948393f458ac306043d7462b0ea902bc3fe8c1205f9e37efab4140cea8316b13290f27cbf4c983922a03eb1353dd35a287f9ef8fd5228df

memory/2296-23-0x00000000001C0000-0x00000000001C6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:39

Reported

2024-06-13 03:41

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_78837ed92a97b8f1618b356d23594248_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
NL 52.111.243.31:443 tcp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp
US 8.8.8.8:53 gemlttwi.com udp

Files

memory/2636-0-0x0000000001F40000-0x0000000001F46000-memory.dmp

memory/2636-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/2636-8-0x0000000001F40000-0x0000000001F46000-memory.dmp

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

MD5 9401e09fd976fd809ec1290909b2a4c6
SHA1 002cd5b0da9d8fb2b7e7de52ab2ed099fdcc04a0
SHA256 fe58a072153e47c9007fa18b8b9e8165cc9cb72a041e3fa6bd41ff6252063fc7
SHA512 1570204410ef2ce56948393f458ac306043d7462b0ea902bc3fe8c1205f9e37efab4140cea8316b13290f27cbf4c983922a03eb1353dd35a287f9ef8fd5228df

memory/1320-19-0x0000000000560000-0x0000000000566000-memory.dmp