Malware Analysis Report

2025-08-11 06:11

Sample ID 240610-1j4hlascnl
Target 2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker
SHA256 f784f269cfc66250dce1ce50fc804144861151b2fbf9c260351b4841f42ae6de
Tags
upx
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

f784f269cfc66250dce1ce50fc804144861151b2fbf9c260351b4841f42ae6de

Threat Level: Known bad

The file 2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of CryptoLocker Variants

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

UPX packed file

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-10 21:41

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

Detection of Cryptolocker Samples

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

UPX dump on OEP (original entry point)

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

UPX packed file

upx
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
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-10 21:41

Reported

2024-06-10 21:44

Platform

win7-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_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

UPX dump on OEP (original entry point)

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\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker.exe N/A

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_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/2444-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2444-1-0x0000000000440000-0x0000000000446000-memory.dmp

memory/2444-2-0x00000000004C0000-0x00000000004C6000-memory.dmp

memory/2444-9-0x0000000000440000-0x0000000000446000-memory.dmp

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

MD5 75aa511b8642ae23bff1fc3a22deac6e
SHA1 a65c73a943296aa81b103f29093c3a81bed6a10d
SHA256 e112fe4bae004918faf0efb5ae338aeaa536a8c5f358d857915d3ee1ed11559b
SHA512 adfdf748beddb136d7007b453384eda1029f471b672ce75839c5b8b97859f7efa0be6679f4a58656606ea915a2b2c8784f0d1f6ed8184c6a2b7959aeeeb64c31

memory/2444-12-0x0000000002740000-0x0000000002750000-memory.dmp

memory/2444-17-0x0000000000500000-0x0000000000510000-memory.dmp

memory/2996-26-0x0000000000290000-0x0000000000296000-memory.dmp

memory/2996-27-0x0000000000500000-0x0000000000510000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-10 21:41

Reported

2024-06-10 21:44

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_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

UPX dump on OEP (original entry point)

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

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\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_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

UPX packed file

upx
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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-10_e0f17ee4360c34ee7c7bafd8080d956e_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/1328-0-0x0000000000500000-0x0000000000510000-memory.dmp

memory/1328-1-0x00000000005C0000-0x00000000005C6000-memory.dmp

memory/1328-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

memory/1328-9-0x00000000005C0000-0x00000000005C6000-memory.dmp

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

MD5 75aa511b8642ae23bff1fc3a22deac6e
SHA1 a65c73a943296aa81b103f29093c3a81bed6a10d
SHA256 e112fe4bae004918faf0efb5ae338aeaa536a8c5f358d857915d3ee1ed11559b
SHA512 adfdf748beddb136d7007b453384eda1029f471b672ce75839c5b8b97859f7efa0be6679f4a58656606ea915a2b2c8784f0d1f6ed8184c6a2b7959aeeeb64c31

memory/1328-18-0x0000000000500000-0x0000000000510000-memory.dmp

memory/4600-20-0x0000000002070000-0x0000000002076000-memory.dmp

memory/4600-26-0x0000000000660000-0x0000000000666000-memory.dmp

memory/4600-27-0x0000000000500000-0x0000000000510000-memory.dmp