Malware Analysis Report

2025-08-06 00:23

Sample ID 240611-bgaeasydmj
Target 2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_cryptolocker
SHA256 b9bb395500b1f57c3027578bb82c3c1c4694da9cc16ccfc6bcad234e1bd5fbce
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

b9bb395500b1f57c3027578bb82c3c1c4694da9cc16ccfc6bcad234e1bd5fbce

Threat Level: Known bad

The file 2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

UPX packed file

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

2024-06-11 01:06

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

2024-06-11 01:06

Reported

2024-06-11 01:08

Platform

win7-20231129-en

Max time kernel

147s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_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\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_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\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_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 3.130.204.160:443 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
US 3.130.253.23:443 emrlogistics.com tcp

Files

memory/1680-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1680-9-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1680-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/1680-2-0x0000000000300000-0x0000000000306000-memory.dmp

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

MD5 d5e669737752be2ce6608436dfa07015
SHA1 47e5ba8b03b0ae1cf5322ff545574f6bdc674646
SHA256 9265225773454765e62fdb2a133120726fd5af510133319e306ba80f0c052ca2
SHA512 2c926e303ab9ca62f32b6d11484c902b4f93f0ae17d54250f56dd6b327ad069e38044f52992544556205f92b098de3400d317bc5a8eda81e42f01768dc6fcf5a

memory/1680-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2192-17-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2192-19-0x00000000003F0000-0x00000000003F6000-memory.dmp

memory/2192-26-0x00000000001C0000-0x00000000001C6000-memory.dmp

memory/2192-27-0x0000000000500000-0x000000000050F000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-11 01:06

Reported

2024-06-11 01:08

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_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
N/A N/A N/A N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-11_0fc0471ec66c3227f04d670050b6ac6e_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 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.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 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 52.71.57.184:443 emrlogistics.com tcp
US 52.111.227.11:443 tcp
US 54.209.32.212:443 emrlogistics.com tcp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
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/2008-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2008-1-0x0000000000620000-0x0000000000626000-memory.dmp

memory/2008-2-0x0000000000750000-0x0000000000756000-memory.dmp

memory/2008-9-0x0000000000620000-0x0000000000626000-memory.dmp

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

MD5 d5e669737752be2ce6608436dfa07015
SHA1 47e5ba8b03b0ae1cf5322ff545574f6bdc674646
SHA256 9265225773454765e62fdb2a133120726fd5af510133319e306ba80f0c052ca2
SHA512 2c926e303ab9ca62f32b6d11484c902b4f93f0ae17d54250f56dd6b327ad069e38044f52992544556205f92b098de3400d317bc5a8eda81e42f01768dc6fcf5a

memory/1448-19-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2008-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1448-21-0x00000000006D0000-0x00000000006D6000-memory.dmp

memory/1448-27-0x0000000000560000-0x0000000000566000-memory.dmp

memory/1448-28-0x0000000000500000-0x000000000050F000-memory.dmp