Malware Analysis Report

2025-08-05 16:00

Sample ID 240610-g62gzadb6t
Target 2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker
SHA256 7f8297a5240f75cc7cdbade449f70fa495ab5355c75c2df9f1fe1dcaf57ac95a
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

7f8297a5240f75cc7cdbade449f70fa495ab5355c75c2df9f1fe1dcaf57ac95a

Threat Level: Known bad

The file 2024-06-10_c70ac706b4157167d03227532fc5a71e_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

Modifies system certificate store

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 06:28

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 06:25

Reported

2024-06-10 06:39

Platform

win7-20240215-en

Max time kernel

121s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_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_c70ac706b4157167d03227532fc5a71e_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_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_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/2916-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/2916-0-0x0000000000380000-0x0000000000386000-memory.dmp

memory/2916-8-0x0000000000380000-0x0000000000386000-memory.dmp

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

MD5 3424207893b64a11f8bcb4538a86477d
SHA1 e5833fdc92822500598f2a1b596cdf21a7ba9dc0
SHA256 1830c36acd4a2425c92b3b133bed7c3d5990d87c0f1e9bf1fde19a9bec7bdc85
SHA512 87918f07baebd97ab1a6d9fc75ed80a5e93535ec23155809cf6ae106ad0b87ac0eba5b6b283c80a5a0cc5d450abae8bffbb0acd3f1e866fb5eb12dfbccf06f40

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 06:25

Reported

2024-06-10 06:39

Platform

win10v2004-20240226-en

Max time kernel

21s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_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_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe N/A
Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\demka.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_c70ac706b4157167d03227532fc5a71e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_c70ac706b4157167d03227532fc5a71e_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=4136 --field-trial-handle=2744,i,16362475727591565961,3676688664819797550,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
GB 172.217.169.74:443 tcp
US 8.8.8.8:53 154.239.44.20.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 8.8.8.8:53 222.114.215.35.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 11.97.55.23.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
US 8.8.8.8:53 195.98.74.40.in-addr.arpa udp

Files

memory/452-0-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/452-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

memory/452-2-0x0000000000400000-0x0000000000406000-memory.dmp

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

MD5 3424207893b64a11f8bcb4538a86477d
SHA1 e5833fdc92822500598f2a1b596cdf21a7ba9dc0
SHA256 1830c36acd4a2425c92b3b133bed7c3d5990d87c0f1e9bf1fde19a9bec7bdc85
SHA512 87918f07baebd97ab1a6d9fc75ed80a5e93535ec23155809cf6ae106ad0b87ac0eba5b6b283c80a5a0cc5d450abae8bffbb0acd3f1e866fb5eb12dfbccf06f40

memory/1720-25-0x00000000006F0000-0x00000000006F6000-memory.dmp

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

MD5 16cdf4d2a37b9fbcb247c515277c4915
SHA1 51532c70c8fb7b87ec740a5241b3ccd243ec466d
SHA256 53b33e8fded234c01d97ba1cd36b99baa4da06237249727be1caf37bd2776d4e
SHA512 e3c065408fba9aa45441af570206ebbc6d7644ef7788608ee36e2919f2124e67696aa3a59f51689646b0fe0758919d9bc278b90137f21bbc2fbb9e82b57bc257