Malware Analysis Report

2025-01-17 21:20

Sample ID 240603-n6m3xafa29
Target 2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_cryptolocker
SHA256 7bf7aba02b153fb482dfcae85db0e2d8e114b702626eaed177c0a10849b6d834
Tags
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

7bf7aba02b153fb482dfcae85db0e2d8e114b702626eaed177c0a10849b6d834

Threat Level: Known bad

The file 2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_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

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-03 12:00

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: behavioral2

Detonation Overview

Submitted

2024-06-03 12:00

Reported

2024-06-03 12:03

Platform

win10v2004-20240508-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_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-1-5-21-2804150937-2146708401-419095071-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_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\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 emrlogistics.com udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 100.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 34.205.242.146:443 emrlogistics.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 83.177.190.20.in-addr.arpa udp
US 54.161.222.85:443 emrlogistics.com tcp
US 8.8.8.8:53 152.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 200.197.79.204.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

Files

memory/2364-0-0x00000000005D0000-0x00000000005D6000-memory.dmp

memory/2364-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

memory/2364-8-0x00000000005D0000-0x00000000005D6000-memory.dmp

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

MD5 826aebc146fd5e1305f80259b82ff49e
SHA1 f1dc566bacb2d3a14b6d056c9409d81d1b96fef0
SHA256 5f79eb94fd598b49c5d33935d3f73c7ffbe11cf131cd23453eeabc02ca77337e
SHA512 45691b2136258943c635c053022cd14db9a2636eb2c9040c902b50e8fcf72d21361fc637d6ef1f152051690b49e40e1f8f3ad111f7f3e14d6ea55dfea47e935e

memory/1392-17-0x0000000000660000-0x0000000000666000-memory.dmp

memory/1392-23-0x00000000004D0000-0x00000000004D6000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-03 12:00

Reported

2024-06-03 12:03

Platform

win7-20240220-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_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\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-03_dbb555a7453dc4070d3b80b3f17f843a_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 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 54.161.222.85:443 emrlogistics.com tcp
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 54.161.222.85:443 emrlogistics.com tcp

Files

memory/2204-0-0x0000000000240000-0x0000000000246000-memory.dmp

memory/2204-1-0x0000000000280000-0x0000000000286000-memory.dmp

memory/2204-8-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 826aebc146fd5e1305f80259b82ff49e
SHA1 f1dc566bacb2d3a14b6d056c9409d81d1b96fef0
SHA256 5f79eb94fd598b49c5d33935d3f73c7ffbe11cf131cd23453eeabc02ca77337e
SHA512 45691b2136258943c635c053022cd14db9a2636eb2c9040c902b50e8fcf72d21361fc637d6ef1f152051690b49e40e1f8f3ad111f7f3e14d6ea55dfea47e935e