Malware Analysis Report

2025-06-16 07:26

Sample ID 240602-fep47acb35
Target 2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker
SHA256 c4bd9d42ca929f3c732aaf18d26c55b381de1a4d08feb1dac35e97a1485d611e
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

c4bd9d42ca929f3c732aaf18d26c55b381de1a4d08feb1dac35e97a1485d611e

Threat Level: Known bad

The file 2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_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

Checks computer location settings

Loads dropped DLL

Enumerates physical storage devices

Unsigned PE

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

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

2024-06-02 04:47

Reported

2024-06-02 04:50

Platform

win7-20240221-en

Max time kernel

149s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker.exe"

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

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\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_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 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp

Files

memory/1500-0-0x0000000000330000-0x0000000000336000-memory.dmp

memory/1500-8-0x0000000000330000-0x0000000000336000-memory.dmp

memory/1500-1-0x0000000000460000-0x0000000000466000-memory.dmp

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

MD5 a852dcd6d411822d80834909187d88cb
SHA1 a6fbcb999b108757b2a81751260cad20e5629c53
SHA256 9970d30c31fa2071f03f2304b5663673cd1751f9a8ae1a97f49b08e8c844d857
SHA512 20df9a873d5693e764acbc633ecd2af19a4f762b7d0647d51e5e44cacb8e63d53b0be21002dbdbcba00bdf2759d05bdc572ab6651d066b6d2eccf460f70e7b1c

memory/2900-15-0x0000000000350000-0x0000000000356000-memory.dmp

memory/2900-22-0x0000000000320000-0x0000000000326000-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_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker.exe"

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

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\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_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\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-02_d29f3177ae2b2e7d6b186d7c7ac8d06b_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 3.130.253.23:443 emrlogistics.com tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa 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 204.79.197.200:443 tse1.mm.bing.net tcp
US 3.130.253.23:443 emrlogistics.com tcp
US 3.130.204.160:443 emrlogistics.com tcp
US 3.130.253.23:443 emrlogistics.com tcp

Files

memory/4900-0-0x00000000004D0000-0x00000000004D6000-memory.dmp

memory/4900-1-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/4900-8-0x00000000004D0000-0x00000000004D6000-memory.dmp

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

MD5 a852dcd6d411822d80834909187d88cb
SHA1 a6fbcb999b108757b2a81751260cad20e5629c53
SHA256 9970d30c31fa2071f03f2304b5663673cd1751f9a8ae1a97f49b08e8c844d857
SHA512 20df9a873d5693e764acbc633ecd2af19a4f762b7d0647d51e5e44cacb8e63d53b0be21002dbdbcba00bdf2759d05bdc572ab6651d066b6d2eccf460f70e7b1c

memory/732-18-0x00000000020F0000-0x00000000020F6000-memory.dmp

memory/732-23-0x0000000000630000-0x0000000000636000-memory.dmp