Malware Analysis Report

2025-01-18 12:57

Sample ID 240613-ez5vpstgmh
Target 2024-06-13_1249b25823c43515c7b7391d93830f95_cryptolocker
SHA256 347bb0a55a5f0f8b7ea0269ab925df173058b7beb755847de9675c9cd8343419
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

347bb0a55a5f0f8b7ea0269ab925df173058b7beb755847de9675c9cd8343419

Threat Level: Known bad

The file 2024-06-13_1249b25823c43515c7b7391d93830f95_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 04:23

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

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-13 04:23

Reported

2024-06-13 04:26

Platform

win7-20240611-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1249b25823c43515c7b7391d93830f95_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
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_1249b25823c43515c7b7391d93830f95_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_1249b25823c43515c7b7391d93830f95_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1249b25823c43515c7b7391d93830f95_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 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
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

Files

memory/1176-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1176-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

memory/1176-1-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1176-3-0x0000000000310000-0x0000000000316000-memory.dmp

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

MD5 e9fd15a6b7a01fa48fafeeb3ea80aa5e
SHA1 1c99082693622534abea37b1fab297e6e6bec407
SHA256 b450827a7595a63e1dfe71e369f85f87d8489e2a72fc8cbb340d37ce0dfbc463
SHA512 ce3d96ee18e51474c62f27e206121e2149c3ffd7e85c1b6ed35e14e8ac0e04eefdd425c411e0a12c99327ffe6a2c71851bfe9a746864abc72787a662a9a0ad02

memory/1176-14-0x0000000002840000-0x000000000284B000-memory.dmp

memory/1176-16-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2308-25-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2308-18-0x0000000000460000-0x0000000000466000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 04:23

Reported

2024-06-13 04:26

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1249b25823c43515c7b7391d93830f95_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
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-2539840389-1261165778-1087677076-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_1249b25823c43515c7b7391d93830f95_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_1249b25823c43515c7b7391d93830f95_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_1249b25823c43515c7b7391d93830f95_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/1488-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1488-1-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/1488-2-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/1488-9-0x00000000006B0000-0x00000000006B6000-memory.dmp

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

MD5 e9fd15a6b7a01fa48fafeeb3ea80aa5e
SHA1 1c99082693622534abea37b1fab297e6e6bec407
SHA256 b450827a7595a63e1dfe71e369f85f87d8489e2a72fc8cbb340d37ce0dfbc463
SHA512 ce3d96ee18e51474c62f27e206121e2149c3ffd7e85c1b6ed35e14e8ac0e04eefdd425c411e0a12c99327ffe6a2c71851bfe9a746864abc72787a662a9a0ad02

memory/1488-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2156-18-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2156-20-0x0000000000760000-0x0000000000766000-memory.dmp

memory/2156-26-0x0000000000740000-0x0000000000746000-memory.dmp

memory/2156-27-0x0000000000500000-0x000000000050B000-memory.dmp