Malware Analysis Report

2025-01-18 12:59

Sample ID 240613-d1sq4aweqk
Target 2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker
SHA256 7f6b4d24158c59b9a6fa7c9d0f315288f5de1c63b5116bb2df87e8756e7b7088
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

7f6b4d24158c59b9a6fa7c9d0f315288f5de1c63b5116bb2df87e8756e7b7088

Threat Level: Known bad

The file 2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker was found to be: Known bad.

Malicious Activity Summary


UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

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

2024-06-13 03:28

Signatures

Detection of CryptoLocker Variants

Description Indicator Process Target
N/A N/A N/A N/A

UPX dump on OEP (original entry point)

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

2024-06-13 03:28

Reported

2024-06-13 03:31

Platform

win7-20240419-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_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

Detection of Cryptolocker Samples

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

UPX dump on OEP (original entry point)

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

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp
US 8.8.8.8:53 emrlogistics.com udp

Files

memory/1824-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1824-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1824-2-0x0000000000460000-0x0000000000466000-memory.dmp

memory/1824-9-0x00000000002C0000-0x00000000002C6000-memory.dmp

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

MD5 b7601b3ae5808fa83da7cbb07e71c4c2
SHA1 3a251503ef4102846cfb7c199d9deb6382e2c1e1
SHA256 9138d5a37dba409f8d49b09ceec447aa4c439ddb3e7327fa71793fe0fab4fdb1
SHA512 aa96d42ebf6c957dce46af72ec90095980d5d9b29cf911402799c91f56b82478a055001e0401e26110e60b1c65b7cd0123471b5131abc41ff9df766f7bb7128f

memory/1824-16-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2424-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2424-19-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2424-26-0x00000000001D0000-0x00000000001D6000-memory.dmp

memory/2424-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:28

Reported

2024-06-13 03:31

Platform

win10v2004-20240611-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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-1-5-21-3665033694-1447845302-680750983-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_316c98599c0d7c1a77aa1c1c63eb7f80_cryptolocker.exe"

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

"C:\Users\Admin\AppData\Local\Temp\asih.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 --field-trial-handle=4280,i,6522675234395427298,2952738987384583032,262144 --variations-seed-version --mojo-platform-channel-handle=4288 /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 13.107.42.16:443 tcp
US 8.8.8.8:53 emrlogistics.com udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 76.234.34.23.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 199.232.210.172:80 tcp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 3.19.116.195:443 emrlogistics.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp
US 3.19.116.195:443 emrlogistics.com tcp
US 3.18.7.81:443 emrlogistics.com tcp

Files

memory/1252-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1252-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1252-6-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/1252-2-0x00000000004F0000-0x00000000004F6000-memory.dmp

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

MD5 b7601b3ae5808fa83da7cbb07e71c4c2
SHA1 3a251503ef4102846cfb7c199d9deb6382e2c1e1
SHA256 9138d5a37dba409f8d49b09ceec447aa4c439ddb3e7327fa71793fe0fab4fdb1
SHA512 aa96d42ebf6c957dce46af72ec90095980d5d9b29cf911402799c91f56b82478a055001e0401e26110e60b1c65b7cd0123471b5131abc41ff9df766f7bb7128f

memory/3412-19-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1252-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/3412-21-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

memory/3412-27-0x0000000000620000-0x0000000000626000-memory.dmp

memory/3412-28-0x0000000000500000-0x0000000000510000-memory.dmp