Malware Analysis Report

2025-06-16 07:27

Sample ID 240602-ff33fabf2t
Target 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker
SHA256 be08bb522045dd6dbf020ea65b7457d1fb0387edca2e8d39a8dadc06449af456
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

be08bb522045dd6dbf020ea65b7457d1fb0387edca2e8d39a8dadc06449af456

Threat Level: Known bad

The file 2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Loads dropped DLL

Executes dropped EXE

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-02 04:49

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

2024-06-02 04:49

Reported

2024-06-02 04:52

Platform

win7-20240221-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_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

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\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_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/2088-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2088-1-0x0000000000320000-0x0000000000326000-memory.dmp

memory/2088-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/2088-9-0x0000000000320000-0x0000000000326000-memory.dmp

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

MD5 ea21a9f2322f1025f08a6fdca575b77c
SHA1 64abf3bfb99f657402bf259c0cc736ad77deca4f
SHA256 56a39ca7c530120002aafdae16e390569aa860e95c7779d7d41a142edbd13c34
SHA512 8ed2f74f34c1053280554a333512d89c5f76887bb87628abb6849301230c750b3ca7b20d5acf9029dc39874508f7b450ee39a2193e82e34d85280672adf2071d

memory/2088-15-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2192-17-0x0000000001BB0000-0x0000000001BB6000-memory.dmp

memory/2192-25-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2192-24-0x0000000000240000-0x0000000000246000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 04:49

Reported

2024-06-02 04:52

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1181767204-2009306918-3718769404-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_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\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e16b4d3ea88080431fbdefbedf57f155_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\lossy.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 --field-trial-handle=4156,i,13035806169561352434,1332896185314862791,262144 --variations-seed-version --mojo-platform-channel-handle=4124 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 88.210.23.2.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.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 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.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 11.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 2ndry.com udp
US 8.8.8.8:53 172.210.232.199.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 43.58.199.20.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 82.90.14.23.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 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
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/3112-0-0x0000000008000000-0x000000000800A000-memory.dmp

memory/3112-1-0x00000000020C0000-0x00000000020C6000-memory.dmp

memory/3112-2-0x00000000020E0000-0x00000000020E6000-memory.dmp

memory/3112-9-0x00000000020C0000-0x00000000020C6000-memory.dmp

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

MD5 ea21a9f2322f1025f08a6fdca575b77c
SHA1 64abf3bfb99f657402bf259c0cc736ad77deca4f
SHA256 56a39ca7c530120002aafdae16e390569aa860e95c7779d7d41a142edbd13c34
SHA512 8ed2f74f34c1053280554a333512d89c5f76887bb87628abb6849301230c750b3ca7b20d5acf9029dc39874508f7b450ee39a2193e82e34d85280672adf2071d

memory/3112-16-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2492-18-0x0000000008000000-0x000000000800A000-memory.dmp

memory/2492-20-0x0000000002060000-0x0000000002066000-memory.dmp

memory/2492-26-0x0000000000660000-0x0000000000666000-memory.dmp

memory/2492-27-0x0000000008000000-0x000000000800A000-memory.dmp