MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c9a5c6acd2ac52d3ac613f18efde1fcdeaff84426fd6cb73c31858d352da9aed. 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



AveMariaRAT


Vendor detections: 9


Intelligence 9 IOCs YARA 7 File information Comments

SHA256 hash: c9a5c6acd2ac52d3ac613f18efde1fcdeaff84426fd6cb73c31858d352da9aed
SHA3-384 hash: c2df3976cbae0bf8c913c47d354fe2852b649f94aa5ae533ba8719f30a7c422022f71c3d81e61367f0a3afd544b2f652
SHA1 hash: 5a0dd13f4fc98b230e5a793164a77fa58b2a1f0d
MD5 hash: 509e8e4ec00ce2d32a8e96245e21adca
humanhash: wolfram-arkansas-spring-pip
File name:RFQ.2858082020.exe
Download: download sample
Signature AveMariaRAT
File size:228'864 bytes
First seen:2020-08-04 10:53:09 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'462 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 6144:Oy6PNh4Hq6CIutUoBUuhnBeZGPUlcWLT3xc:oPNiHaljUUEZGkcW
Threatray 427 similar samples on MalwareBazaar
TLSH 9A24011A36899A6CDD691BB82590130533BFAD24E016E16E4D43F0E730777B98362FE7
Reporter abuse_ch
Tags:AveMariaRAT exe Outlook RAT


Avatar
abuse_ch
Malspam distributing unidentified malware:

HELO: APC01-HK2-obe.outbound.protection.outlook.com
Sending IP: 40.92.255.37
From: Du Feng <frankmydf@hotmail.com>
Subject: Ayuttthaya group Per Order 2858082020.
Attachment: RFQ.2858082020.xz (contains "RFQ.2858082020.exe")

Unknown RAT C2:
blessnbwz.istmein.de:3782 (5.206.224.59)

Intelligence


File Origin
# of uploads :
1
# of downloads :
70
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Unauthorized injection to a recently created process
Creating a file
DNS request
Using the Windows Management Instrumentation requests
Sending a custom TCP request
Deleting a recently created file
Reading critical registry keys
Creating a file in the %temp% directory
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Stealing user critical data
Result
Threat name:
AveMaria
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
92 / 100
Signature
Contains functionality to hide user accounts
Contains functionality to inject threads in other processes
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal e-mail passwords
Hides that the sample has been downloaded from the Internet (zone.identifier)
Increases the number of concurrent connection per server for Internet Explorer
Injects a PE file into a foreign processes
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 256899 Sample: RFQ.2858082020.exe Startdate: 04/08/2020 Architecture: WINDOWS Score: 92 36 Malicious sample detected (through community Yara rule) 2->36 38 Yara detected AveMaria stealer 2->38 40 Contains functionality to hide user accounts 2->40 42 Machine Learning detection for sample 2->42 6 RFQ.2858082020.exe 1 5 2->6         started        10 Admintracent.exe.exe 3 2->10         started        12 Admintracent.exe.exe 2 2->12         started        process3 file4 24 C:\Users\user\...\Admintracent.exe.exe, PE32 6->24 dropped 26 C:\...\Admintracent.exe.exe:Zone.Identifier, ASCII 6->26 dropped 28 C:\Users\user\...\RFQ.2858082020.exe.log, ASCII 6->28 dropped 44 Contains functionality to inject threads in other processes 6->44 46 Contains functionality to steal Chrome passwords or cookies 6->46 48 Contains functionality to steal e-mail passwords 6->48 14 RFQ.2858082020.exe 3 2 6->14         started        30 C:\Users\user\...\Admintracent.exe.exe.log, ASCII 10->30 dropped 50 Machine Learning detection for dropped file 10->50 52 Injects a PE file into a foreign processes 10->52 18 Admintracent.exe.exe 1 10->18         started        20 Admintracent.exe.exe 1 12->20         started        22 Admintracent.exe.exe 12->22         started        signatures5 process6 dnsIp7 32 blessnbwz.istmein.de 5.206.224.59, 3782 DOTSIPT Portugal 14->32 34 192.168.2.1 unknown unknown 14->34 54 Increases the number of concurrent connection per server for Internet Explorer 14->54 56 Hides that the sample has been downloaded from the Internet (zone.identifier) 14->56 signatures8
Threat name:
ByteCode-MSIL.Trojan.Malrep
Status:
Suspicious
First seen:
2020-08-04 10:55:07 UTC
AV detection:
27 of 48 (56.25%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  7/10
Tags:
persistence spyware
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of AdjustPrivilegeToken
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
JavaScript code in executable
Adds Run key to start application
JavaScript code in executable
Adds Run key to start application
Reads user/profile data of web browsers
Loads dropped DLL
Reads user/profile data of web browsers
Loads dropped DLL
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:Cobalt_functions
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:Codoso_Gh0st_1
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:Codoso_Gh0st_2
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:MAL_Envrial_Jan18_1
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:RDPWrap
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:win_ave_maria_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:autogenerated rule brought to you by yara-signator
Rule name:win_ave_maria_g0
Author:Slavo Greminger, SWITCH-CERT

File information


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

Malspam

AveMariaRAT

Executable exe c9a5c6acd2ac52d3ac613f18efde1fcdeaff84426fd6cb73c31858d352da9aed

(this sample)

  
Delivery method
Distributed via e-mail attachment

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