MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6cf85f38f11e82be3fbabc2f7ee0d07f608f30ceb92654ec2168c4fcfad56e0. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



BuerLoader


Vendor detections: 7


Intelligence 7 IOCs YARA 1 File information Comments

SHA256 hash: a6cf85f38f11e82be3fbabc2f7ee0d07f608f30ceb92654ec2168c4fcfad56e0
SHA3-384 hash: e272887b79c425c4581c635413353e1f1d07c5f7b143d838d1879c3f6c8b0b7dd621fb84ce27c6811897b54d8c22db8e
SHA1 hash: 5c5b1008a7a96015f2588fd60ddc0b4739f74fb5
MD5 hash: ac8348dd8319365d4857b1e20715c6da
humanhash: fanta-illinois-georgia-seventeen
File name:a6cf85f38f11e82be3fbabc2f7ee0d07f608f30ceb92654ec2168c4fcfad56e0
Download: download sample
Signature BuerLoader
File size:265'728 bytes
First seen:2020-09-16 16:42:31 UTC
Last seen:2020-09-16 17:38:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'744 x AgentTesla, 19'609 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 6144:nQ6ixI8UKltZMbvRrUjZMlbHHOLGqJ/89GEgr/KLUygLMh:Q6ie8UKl7M7RA1MRn5t9wrSLbK
Threatray 39 similar samples on MalwareBazaar
TLSH 6E44011BFFA4CF79CAED0DBBB830180553BAC78950A5870AAF58E86709577D610612CF
Reporter JAMESWT_WT
Tags:BuerLoader

Intelligence


File Origin
# of uploads :
2
# of downloads :
100
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Launching a process
Creating a file
Creating a process with a hidden window
Unauthorized injection to a system process
Result
Threat name:
Unknown
Detection:
malicious
Classification:
evad
Score:
72 / 100
Signature
Antivirus / Scanner detection for submitted sample
Contains functionality to inject code into remote processes
Machine Learning detection for sample
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Writes to foreign memory regions
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 286499 Sample: RgY7RxMCsu Startdate: 16/09/2020 Architecture: WINDOWS Score: 72 23 kackdelar.top 2->23 31 Antivirus / Scanner detection for submitted sample 2->31 33 Multi AV Scanner detection for submitted file 2->33 35 Machine Learning detection for sample 2->35 9 RgY7RxMCsu.exe 1 2->9         started        signatures3 process4 file5 21 C:\Users\user\AppData\...\RgY7RxMCsu.exe.log, ASCII 9->21 dropped 37 Writes to foreign memory regions 9->37 39 Maps a DLL or memory area into another process 9->39 13 RegAsm.exe 3 9->13         started        signatures6 process7 dnsIp8 25 kackdelar.top 13->25 27 jaimacamica.top 13->27 29 192.168.2.1 unknown unknown 13->29 41 Contains functionality to inject code into remote processes 13->41 17 powershell.exe 13->17         started        signatures9 process10 process11 19 conhost.exe 17->19         started       
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2020-08-23 01:14:27 UTC
File Type:
PE (.Net Exe)
Extracted files:
1
AV detection:
23 of 29 (79.31%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  6/10
Tags:
n/a
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of WriteProcessMemory
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Enumerates connected drives
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:win_buer_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Comments