Malware Analysis Report

2025-08-05 16:07

Sample ID 240526-edgwradg9s
Target 2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker
SHA256 712317968045922180b805ae86ace11c89ce237dc0ec1dc1d1b01bacdb9923be
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

712317968045922180b805ae86ace11c89ce237dc0ec1dc1d1b01bacdb9923be

Threat Level: Known bad

The file 2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-26 03:49

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

2024-05-26 03:49

Reported

2024-05-26 03:51

Platform

win7-20231129-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_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\hasfj.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker.exe"

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

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

Network

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

Files

memory/2380-0-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

memory/2380-1-0x0000000001CF0000-0x0000000001CF6000-memory.dmp

memory/2380-8-0x0000000001CE0000-0x0000000001CE6000-memory.dmp

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

MD5 895c63111680a899c6a9a89236eef708
SHA1 bb76e40b9f8630defefb512b7c1f16a0c4c25315
SHA256 4cc276eba9b392a711c5852dfe4a84dd621cdc67e35a025636bcbb4595f95f84
SHA512 13320d9f5effcd4d15c07f63e71fe7c1bd1b0767235d7e5b03df9a89b30770c186b45fd741f932cd79bd4b8639a65b76a65243ce8fabc00ec95232d826d21a1a

memory/3000-22-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

memory/3000-15-0x0000000001CB0000-0x0000000001CB6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-26 03:49

Reported

2024-05-26 03:51

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-05-26_a4382c7cb6ed8dcc66e116f2bea41d88_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 75.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp
US 8.8.8.8:53 mytarta.com udp

Files

memory/4928-0-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/4928-8-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/4928-1-0x0000000003150000-0x0000000003156000-memory.dmp

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

MD5 895c63111680a899c6a9a89236eef708
SHA1 bb76e40b9f8630defefb512b7c1f16a0c4c25315
SHA256 4cc276eba9b392a711c5852dfe4a84dd621cdc67e35a025636bcbb4595f95f84
SHA512 13320d9f5effcd4d15c07f63e71fe7c1bd1b0767235d7e5b03df9a89b30770c186b45fd741f932cd79bd4b8639a65b76a65243ce8fabc00ec95232d826d21a1a

memory/1308-17-0x0000000003010000-0x0000000003016000-memory.dmp

memory/1308-23-0x0000000002D60000-0x0000000002D66000-memory.dmp