Malware Analysis Report

2025-06-16 07:26

Sample ID 240602-feqeysbe6w
Target 2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker
SHA256 eebe9b66ba690a9f61ce8939bf82ebf3c3f85d7f75f5c62452a9828cc8cc8693
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

eebe9b66ba690a9f61ce8939bf82ebf3c3f85d7f75f5c62452a9828cc8cc8693

Threat Level: Known bad

The file 2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker was found to be: Known bad.

Malicious Activity Summary


Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

Executes dropped EXE

Checks computer location settings

Loads dropped DLL

Unsigned PE

Enumerates physical storage devices

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-02 04:47

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 04:47

Reported

2024-06-02 04:49

Platform

win7-20240221-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker.exe"

Signatures

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 spinistry.com udp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp

Files

memory/2044-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/2044-0-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2044-8-0x0000000000280000-0x0000000000286000-memory.dmp

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

MD5 9958cec69cea6abc71aab1585903be15
SHA1 b85d602582c563684ed411e4a121aacc161f4b92
SHA256 c1570f412c7aaac9343325ef34c9264fe9cc0a1993929a304a76ed3572856198
SHA512 1e5382b6fab439c66eb77016326c83be399e4b45e00cdcee036064845a48da8f76bce9a752373e90e98d63d55c0dffafef5cb9ffb7600f5af5f307abb36a0dba

memory/2544-23-0x00000000003C0000-0x00000000003C6000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-02 04:47

Reported

2024-06-02 04:49

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker.exe N/A

Executes dropped EXE

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_e0933bf13282a97a569428a1a5fcd2c6_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 spinistry.com udp
US 64.98.135.121:443 spinistry.com tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
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 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 64.98.135.121:443 spinistry.com tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 64.98.135.121:443 spinistry.com tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 64.98.135.121:443 spinistry.com tcp
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 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 64.98.135.121:443 spinistry.com tcp
US 64.98.135.121:443 spinistry.com tcp

Files

memory/5048-0-0x0000000002060000-0x0000000002066000-memory.dmp

memory/5048-1-0x0000000000400000-0x0000000000406000-memory.dmp

memory/5048-8-0x0000000002060000-0x0000000002066000-memory.dmp

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

MD5 9958cec69cea6abc71aab1585903be15
SHA1 b85d602582c563684ed411e4a121aacc161f4b92
SHA256 c1570f412c7aaac9343325ef34c9264fe9cc0a1993929a304a76ed3572856198
SHA512 1e5382b6fab439c66eb77016326c83be399e4b45e00cdcee036064845a48da8f76bce9a752373e90e98d63d55c0dffafef5cb9ffb7600f5af5f307abb36a0dba

memory/2988-25-0x0000000002EA0000-0x0000000002EA6000-memory.dmp