Malware Analysis Report

2025-01-18 14:44

Sample ID 240613-eb9hzstblf
Target 2024-06-13_a731e1732b2af5af00244d2deb9d293d_cryptolocker
SHA256 acf316b2abcf74f8899c115c5762229db53650c9732d740413d08d11cd84fc16
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

acf316b2abcf74f8899c115c5762229db53650c9732d740413d08d11cd84fc16

Threat Level: Known bad

The file 2024-06-13_a731e1732b2af5af00244d2deb9d293d_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:47

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 03:47

Reported

2024-06-13 03:49

Platform

win7-20240611-en

Max time kernel

150s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a731e1732b2af5af00244d2deb9d293d_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

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

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_a731e1732b2af5af00244d2deb9d293d_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_a731e1732b2af5af00244d2deb9d293d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a731e1732b2af5af00244d2deb9d293d_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 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 52.71.57.184:443 emrlogistics.com tcp

Files

memory/2012-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2012-1-0x0000000000420000-0x0000000000426000-memory.dmp

memory/2012-2-0x0000000000450000-0x0000000000456000-memory.dmp

memory/2012-9-0x0000000000420000-0x0000000000426000-memory.dmp

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

MD5 885517f18b81f58d27517fcb234adb9b
SHA1 7a00b9815804001048131b999fe4b8684c3a0b0f
SHA256 327d60d75a1230d2c5852c62114b05a0d65f3ef03b07110809ffc0955a500acb
SHA512 99ff4ad68fd6ba7c49199b5784d426b1c603a077f44c9b870bc0c57dc9464e2f02b6fd31b325aa81f6e6bcfd0d7c71b3b74bbdcb601f0607e05dcb7d0fdd6aef

memory/2012-15-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2208-17-0x0000000000270000-0x0000000000276000-memory.dmp

memory/2208-24-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2208-25-0x0000000000500000-0x000000000050B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:47

Reported

2024-06-13 03:49

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a731e1732b2af5af00244d2deb9d293d_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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_a731e1732b2af5af00244d2deb9d293d_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_a731e1732b2af5af00244d2deb9d293d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a731e1732b2af5af00244d2deb9d293d_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 23.53.113.159:80 tcp
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/1724-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/1724-1-0x0000000000630000-0x0000000000636000-memory.dmp

memory/1724-2-0x0000000000650000-0x0000000000656000-memory.dmp

memory/1724-9-0x0000000000630000-0x0000000000636000-memory.dmp

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

MD5 885517f18b81f58d27517fcb234adb9b
SHA1 7a00b9815804001048131b999fe4b8684c3a0b0f
SHA256 327d60d75a1230d2c5852c62114b05a0d65f3ef03b07110809ffc0955a500acb
SHA512 99ff4ad68fd6ba7c49199b5784d426b1c603a077f44c9b870bc0c57dc9464e2f02b6fd31b325aa81f6e6bcfd0d7c71b3b74bbdcb601f0607e05dcb7d0fdd6aef

memory/1724-18-0x0000000000500000-0x000000000050B000-memory.dmp

memory/904-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/904-26-0x0000000000660000-0x0000000000666000-memory.dmp

memory/904-20-0x0000000000820000-0x0000000000826000-memory.dmp

memory/904-27-0x0000000000500000-0x000000000050B000-memory.dmp