Malware Analysis Report

2025-04-14 04:16

Sample ID 240609-jcxm2aff31
Target 2024-06-09_93c09ea5cb023c1616718babd6c4427d_cryptolocker
SHA256 5aa4480175c4d9c03906a1aa5f67655f03a71cc90574430642651ebc078de9f8
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

5aa4480175c4d9c03906a1aa5f67655f03a71cc90574430642651ebc078de9f8

Threat Level: Known bad

The file 2024-06-09_93c09ea5cb023c1616718babd6c4427d_cryptolocker was found to be: Known bad.

Malicious Activity Summary

upx

Detection of CryptoLocker Variants

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

UPX dump on OEP (original entry point)

Detection of Cryptolocker Samples

Detection of CryptoLocker Variants

Loads dropped DLL

Checks computer location settings

UPX packed file

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-09 07:32

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

2024-06-09 07:32

Reported

2024-06-09 07:35

Platform

win7-20240221-en

Max time kernel

148s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_93c09ea5cb023c1616718babd6c4427d_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

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\2024-06-09_93c09ea5cb023c1616718babd6c4427d_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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-09_93c09ea5cb023c1616718babd6c4427d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_93c09ea5cb023c1616718babd6c4427d_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 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp
US 3.94.41.167:443 emrlogistics.com tcp
US 52.86.6.113:443 emrlogistics.com tcp

Files

memory/2016-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2016-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2016-2-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2016-9-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 b94a2939730bddcc3d27e84ab3952d92
SHA1 926b21a23054202aacd465a545068355b4c00e9a
SHA256 ed8eb2d33d336273f3b954b87ef2c27a5a79534d7eca2bab793737bca3c2466a
SHA512 967d8da0a2ec50b1a4a555043071e4b2b640ce52fe8306f2809a5938f3a10127ff3ecfd00fe50f0bed3d0bc885d672849b8dfa48b53b9935b4cf8bc7fbe5a90b

memory/2016-16-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1312-18-0x00000000004A0000-0x00000000004A6000-memory.dmp

memory/1312-26-0x0000000000500000-0x000000000050F000-memory.dmp

memory/1312-25-0x0000000000300000-0x0000000000306000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 07:32

Reported

2024-06-09 07:36

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_93c09ea5cb023c1616718babd6c4427d_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-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-09_93c09ea5cb023c1616718babd6c4427d_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\2024-06-09_93c09ea5cb023c1616718babd6c4427d_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-09_93c09ea5cb023c1616718babd6c4427d_cryptolocker.exe"

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 52.111.229.43:443 tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 54.161.222.85:443 emrlogistics.com tcp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 168.117.168.52.in-addr.arpa udp

Files

memory/2248-0-0x0000000000500000-0x000000000050F000-memory.dmp

memory/2248-1-0x0000000002140000-0x0000000002146000-memory.dmp

memory/2248-2-0x0000000002060000-0x0000000002066000-memory.dmp

memory/2248-9-0x0000000002140000-0x0000000002146000-memory.dmp

memory/3148-19-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3148-21-0x00000000007D0000-0x00000000007D6000-memory.dmp

memory/3148-27-0x00000000007B0000-0x00000000007B6000-memory.dmp

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

MD5 b94a2939730bddcc3d27e84ab3952d92
SHA1 926b21a23054202aacd465a545068355b4c00e9a
SHA256 ed8eb2d33d336273f3b954b87ef2c27a5a79534d7eca2bab793737bca3c2466a
SHA512 967d8da0a2ec50b1a4a555043071e4b2b640ce52fe8306f2809a5938f3a10127ff3ecfd00fe50f0bed3d0bc885d672849b8dfa48b53b9935b4cf8bc7fbe5a90b

memory/2248-18-0x0000000000500000-0x000000000050F000-memory.dmp

memory/3148-28-0x0000000000500000-0x000000000050F000-memory.dmp