Malware Analysis Report

2024-10-16 03:28

Sample ID 231230-3tbaxahhb8
Target 208c45f500c299bc4ebd80d1e230cc41
SHA256 97820cf8de59555d2d333ac724c6a72c610b8c537f35139ebb1a5a362e68f789
Tags
avoslocker ransomware
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

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

97820cf8de59555d2d333ac724c6a72c610b8c537f35139ebb1a5a362e68f789

Threat Level: Known bad

The file 208c45f500c299bc4ebd80d1e230cc41 was found to be: Known bad.

Malicious Activity Summary

avoslocker ransomware

Avoslocker Ransomware

Renames multiple (78) files with added filename extension

Renames multiple (79) files with added filename extension

Unsigned PE

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

N/A

Analysis: static1

Detonation Overview

Reported

2023-12-30 23:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2023-12-30 23:47

Reported

2024-01-04 21:30

Platform

win7-20231215-en

Max time kernel

118s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe"

Signatures

Avoslocker Ransomware

ransomware avoslocker

Renames multiple (78) files with added filename extension

ransomware

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe

"C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe"

Network

N/A

Files

C:\MSOCache\GET_YOUR_FILES_BACK.txt

MD5 0454a42a44d0ac06b736c1c8ea701738
SHA1 7b32fec0e0063f0f9cf7b10aa7aa88e04be6d049
SHA256 bb344c93d0894b33ec20752eebb8917e79df6d92d4be5c9c9610e596e6df26a7
SHA512 1a6f8d5b58cb5cc93350341d72a0a83dd86531e528155f51961aea3e94d17cb8a58513efd7b616af3ac2dffb4ed074fe3a0b150551d5f4540f269b86d00026f5

Analysis: behavioral2

Detonation Overview

Submitted

2023-12-30 23:47

Reported

2024-01-04 21:31

Platform

win10v2004-20231215-en

Max time kernel

150s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe"

Signatures

Avoslocker Ransomware

ransomware avoslocker

Renames multiple (79) files with added filename extension

ransomware

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A
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N/A N/A C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe

"C:\Users\Admin\AppData\Local\Temp\208c45f500c299bc4ebd80d1e230cc41.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 21.53.126.40.in-addr.arpa udp
US 8.8.8.8:53 208.194.73.20.in-addr.arpa udp
US 8.8.8.8:53 201.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 9.228.82.20.in-addr.arpa udp
US 8.8.8.8:53 www.microsoft.com udp
PH 23.37.1.217:80 www.microsoft.com tcp
PH 23.37.1.217:80 www.microsoft.com tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 217.1.37.23.in-addr.arpa udp
US 8.8.8.8:53 195.233.44.23.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 183.1.37.23.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 119.110.54.20.in-addr.arpa udp
US 8.8.8.8:53 140.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 154.178.17.96.in-addr.arpa udp
US 8.8.8.8:53 143.178.17.96.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
GB 96.17.178.143:80 tcp

Files

C:\PerfLogs\GET_YOUR_FILES_BACK.txt

MD5 0454a42a44d0ac06b736c1c8ea701738
SHA1 7b32fec0e0063f0f9cf7b10aa7aa88e04be6d049
SHA256 bb344c93d0894b33ec20752eebb8917e79df6d92d4be5c9c9610e596e6df26a7
SHA512 1a6f8d5b58cb5cc93350341d72a0a83dd86531e528155f51961aea3e94d17cb8a58513efd7b616af3ac2dffb4ed074fe3a0b150551d5f4540f269b86d00026f5