Malware Analysis Report

2025-01-18 12:58

Sample ID 240613-ecdgyatbmc
Target 2024-06-13_a999be43f2ac87b67a859ad971370f4c_cryptolocker
SHA256 cc36e040e919a66504173b5649cc7621d220b3e29233cb7b0bf1641fe3b37694
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

cc36e040e919a66504173b5649cc7621d220b3e29233cb7b0bf1641fe3b37694

Threat Level: Known bad

The file 2024-06-13_a999be43f2ac87b67a859ad971370f4c_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

Loads dropped DLL

Checks computer location settings

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-13 03:47

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

2024-06-13 03:47

Reported

2024-06-13 03:49

Platform

win7-20240611-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a999be43f2ac87b67a859ad971370f4c_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

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\2024-06-13_a999be43f2ac87b67a859ad971370f4c_cryptolocker.exe N/A

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\2024-06-13_a999be43f2ac87b67a859ad971370f4c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a999be43f2ac87b67a859ad971370f4c_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 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp
US 3.140.13.188:443 emrlogistics.com tcp
US 18.119.154.66:443 emrlogistics.com tcp

Files

memory/816-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/816-1-0x0000000000240000-0x0000000000246000-memory.dmp

memory/816-2-0x0000000000290000-0x0000000000296000-memory.dmp

memory/816-9-0x0000000000240000-0x0000000000246000-memory.dmp

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

MD5 9cdd74ce95626fb351f4e5c1e42b4c73
SHA1 9625ee4d6d4a68dddd8e374a79f912ab20233154
SHA256 440d3de588a979a49976c026274bdbb7038973c14f7597e909490a00cad3a2a4
SHA512 4c53520e73ae3449f22839cb85ab9a597722142d473adca123c5379834a9c5f6feef3aa6f06abba736177a9457a773c4bd035fcc8d109b11b6c9676cd263a20a

memory/816-15-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2744-16-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2744-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

memory/2744-25-0x0000000000250000-0x0000000000256000-memory.dmp

memory/2744-26-0x0000000000500000-0x000000000050B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-13 03:47

Reported

2024-06-13 03:50

Platform

win10v2004-20240508-en

Max time kernel

150s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a999be43f2ac87b67a859ad971370f4c_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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2024-06-13_a999be43f2ac87b67a859ad971370f4c_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\2024-06-13_a999be43f2ac87b67a859ad971370f4c_cryptolocker.exe

"C:\Users\Admin\AppData\Local\Temp\2024-06-13_a999be43f2ac87b67a859ad971370f4c_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 8.8.8.8.in-addr.arpa 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/2408-0-0x0000000000500000-0x000000000050B000-memory.dmp

memory/2408-1-0x0000000000730000-0x0000000000736000-memory.dmp

memory/2408-2-0x0000000000750000-0x0000000000756000-memory.dmp

memory/2408-9-0x0000000000730000-0x0000000000736000-memory.dmp

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

MD5 9cdd74ce95626fb351f4e5c1e42b4c73
SHA1 9625ee4d6d4a68dddd8e374a79f912ab20233154
SHA256 440d3de588a979a49976c026274bdbb7038973c14f7597e909490a00cad3a2a4
SHA512 4c53520e73ae3449f22839cb85ab9a597722142d473adca123c5379834a9c5f6feef3aa6f06abba736177a9457a773c4bd035fcc8d109b11b6c9676cd263a20a

memory/2408-18-0x0000000000500000-0x000000000050B000-memory.dmp

memory/736-17-0x0000000000500000-0x000000000050B000-memory.dmp

memory/736-20-0x00000000006E0000-0x00000000006E6000-memory.dmp

memory/736-26-0x00000000006B0000-0x00000000006B6000-memory.dmp

memory/736-27-0x0000000000500000-0x000000000050B000-memory.dmp