Malware Analysis Report

2025-08-05 16:00

Sample ID 240610-g41snadb3w
Target 2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker
SHA256 e52eb26a8ee2d0becc4d385b6a80713ba6a9596afda22dc6a4ed9acc6b5a0e9b
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

e52eb26a8ee2d0becc4d385b6a80713ba6a9596afda22dc6a4ed9acc6b5a0e9b

Threat Level: Known bad

The file 2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Modifies system certificate store

Suspicious use of WriteProcessMemory

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 06:25

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

2024-06-10 06:22

Reported

2024-06-10 06:38

Platform

win7-20240508-en

Max time kernel

122s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_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\demka.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe N/A

Enumerates physical storage devices

Modifies system certificate store

evasion spyware trojan
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8 C:\Users\Admin\AppData\Local\Temp\demka.exe N/A
Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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 C:\Users\Admin\AppData\Local\Temp\demka.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 ttms.org udp
US 35.215.114.222:443 ttms.org tcp

Files

memory/1276-0-0x0000000000290000-0x0000000000296000-memory.dmp

memory/1276-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/1276-7-0x0000000000290000-0x0000000000296000-memory.dmp

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

MD5 1e5d9f0a015973378d5a03e496b25543
SHA1 af902f323d058c552e9cb5f5dac3c3f171ba0001
SHA256 cd02d9a83cc8bbc902766a039cde59f59f3f3633252404dee5569de9c83ba915
SHA512 fe467665030928a1a469da9b582e0a0d27cc4f5223826794a45c0fb2f392fc6f28d8de274c6cc5bc0c5aab0a4c7327baf2aa1956ab4b53f183a6725397b0d0a6

memory/2816-23-0x0000000000410000-0x0000000000416000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 06:22

Reported

2024-06-10 06:39

Platform

win10v2004-20240226-en

Max time kernel

23s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_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-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_07736eb5cf17a27831daade0d377be51_cryptolocker.exe"

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4004 --field-trial-handle=2280,i,1836084024518340990,18250262151825427757,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 ttms.org udp
US 35.215.114.222:443 ttms.org tcp
US 8.8.8.8:53 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 222.114.215.35.in-addr.arpa udp
US 8.8.8.8:53 11.97.55.23.in-addr.arpa udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
GB 142.250.187.202:443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 195.98.74.40.in-addr.arpa udp

Files

memory/3544-0-0x0000000000740000-0x0000000000746000-memory.dmp

memory/3544-1-0x0000000000740000-0x0000000000746000-memory.dmp

memory/3544-2-0x0000000000400000-0x0000000000406000-memory.dmp

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

MD5 1e5d9f0a015973378d5a03e496b25543
SHA1 af902f323d058c552e9cb5f5dac3c3f171ba0001
SHA256 cd02d9a83cc8bbc902766a039cde59f59f3f3633252404dee5569de9c83ba915
SHA512 fe467665030928a1a469da9b582e0a0d27cc4f5223826794a45c0fb2f392fc6f28d8de274c6cc5bc0c5aab0a4c7327baf2aa1956ab4b53f183a6725397b0d0a6

memory/1204-25-0x0000000002210000-0x0000000002216000-memory.dmp

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

MD5 d808d9a55784b6d67a0b030f7d802673
SHA1 f7280cb07462353336cb58f567484ec69d2232b5
SHA256 bdea95bc2512fa84d9793027746019e462dde6bd563ad7c6cf61f20dd0e223c1
SHA512 76bc9ea582e12eddced8d6c89c1cde093d88c1e45592b93dadf12638299f0c442e65839a63ca0adfdb2f0f8bd1114fcbfaa9ebe0fca590c6a9c57300e9474f30