MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 047cc8e0672ffab0edff9ab97852667517b5d2ad28048037c126d06e3e28b8af. 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 11 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 047cc8e0672ffab0edff9ab97852667517b5d2ad28048037c126d06e3e28b8af
SHA3-384 hash: 157d15ee334493f4bab6ed9d11083ab2b11a259e82cff992721394e22cb09ac35b226544f0f05ad7230bd70d4d29ab7a
SHA1 hash: 705eb27f48ca8f2b1728053a5dc8b51cba9a4553
MD5 hash: 499170cba313d8c4f3cd0a811863afd1
humanhash: gee-arizona-fish-hamper
File name:Documentos internos de transferencia de dinero Banco Santader.exe
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:250'584 bytes
First seen:2020-10-27 14:33:08 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'661 x AgentTesla, 19'471 x Formbook, 12'208 x SnakeKeylogger)
ssdeep 3072:p8VqpQc210TaJuw3dZS8T8Y8W8q8c8X8s8A8C8X8c8O8C8A8T868N8W8H8w8s8VI:p8VqpQc210TaJu7/
Threatray 523 similar samples on MalwareBazaar
TLSH 1734522814C1B4BEDEB38A34C8D2D890D3A2A37914D9E07B9FCCD5ADD95C88039576E7
Reporter abuse_ch
Tags:AveMariaRAT ESP exe geo RAT


Avatar
abuse_ch
Malspam distributing AveMariaRAT:

From: "Banco Santander S.A" <xavier.m@caixabank.es>
Subject: SV:Transferencia de pago
Attachment: Documentos internos de transferencia de dinero Banco Santader.arj (contains "Documentos internos de transferencia de dinero Banco Santader.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
71
Origin country :
n/a
Vendor Threat Intelligence
Detection:
Dtloader
Create hunting rule
Link:
https://www.capesandbox.com/analysis/79965/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Launching a process
Creating a process with a hidden window
DNS request
Sending a custom TCP request
Adding an access-denied ACE
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Enabling autorun
Unauthorized injection to a system process
Result
Threat name:
AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/513741
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
Creates an undocumented autostart registry key
Creates autostart registry keys with suspicious names
Creates multiple autostart registry keys
Drops PE files to the startup folder
Executable has a suspicious name (potential lure to open the executable)
Hides that the sample has been downloaded from the Internet (zone.identifier)
Hides threads from debuggers
Increases the number of concurrent connection per server for Internet Explorer
Initial sample is a PE file and has a suspicious name
Malicious sample detected (through community Yara rule)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Yara detected AntiVM_3
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 306006 Sample: Documentos internos de tran... Startdate: 27/10/2020 Architecture: WINDOWS Score: 100 62 Malicious sample detected (through community Yara rule) 2->62 64 Yara detected AntiVM_3 2->64 66 Yara detected AveMaria stealer 2->66 68 5 other signatures 2->68 7 Documentos internos de transferencia de dinero Banco Santader.exe 18 4 2->7         started        12 Documentos internos de transferencia de dinero Banco Santader.exe 2->12         started        14 Documentos internos de transferencia de dinero Banco Santader.exe 2 2->14         started        16 3 other processes 2->16 process3 dnsIp4 54 www.google.it 172.217.168.67 GOOGLEUS United States 7->54 56 ahgwqrq.xyz 104.27.180.69, 443, 49716, 49728 CLOUDFLARENETUS United States 7->56 48 Documentos interno... Banco Santader.exe, PE32 7->48 dropped 80 Creates an undocumented autostart registry key 7->80 82 Hides threads from debuggers 7->82 18 aspnet_state.exe 7->18         started        21 aspnet_state.exe 3 2 7->21         started        24 WerFault.exe 23 9 7->24         started        32 3 other processes 7->32 58 172.67.142.40, 443, 49738 CLOUDFLARENETUS United States 12->58 84 Creates autostart registry keys with suspicious names 12->84 86 Creates multiple autostart registry keys 12->86 26 timeout.exe 12->26         started        60 104.27.181.69, 443, 49727, 49737 CLOUDFLARENETUS United States 14->60 28 timeout.exe 1 14->28         started        34 2 other processes 14->34 30 timeout.exe 16->30         started        36 4 other processes 16->36 file5 signatures6 process7 dnsIp8 70 Contains functionality to inject threads in other processes 18->70 72 Contains functionality to steal Chrome passwords or cookies 18->72 74 Contains functionality to steal e-mail passwords 18->74 50 178.170.138.163, 4554, 49726 ETOP-ASPL Netherlands 21->50 76 Increases the number of concurrent connection per server for Internet Explorer 21->76 78 Hides that the sample has been downloaded from the Internet (zone.identifier) 21->78 52 192.168.2.1 unknown unknown 24->52 38 conhost.exe 28->38         started        40 conhost.exe 30->40         started        42 conhost.exe 32->42         started        44 conhost.exe 36->44         started        46 conhost.exe 36->46         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/047cc8e0672ffab0edff9ab97852667517b5d2ad28048037c126d06e3e28b8af/
Threat name:
ByteCode-MSIL.Spyware.AveMaria
Create hunting rule
Status:
Malicious
First seen:
2020-10-27 13:05:22 UTC
AV detection:
19 of 28 (67.86%)
Threat level:
  2/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=ar6mrydhf75lb3p7tk4xqutgoul3luvnfacian6be3ig4prixcxq._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
Similar samples:
18ec681c471f185edf3ab8e23b52b4ea2a87162f9957b4d5d10ac0e2bc008405
AveMariaRAT
2850ddcebc7ed468cb0db271e54956468f0c93dd57a233665646d28cb1139373
AveMariaRAT
285f4e79ae946ef179e45319caf11bf0c1cdaa376924b83bfbf82ed39361911b
AveMariaRAT
5b92d7f869973b50de0c707ce58afacd6f1202364283c7dffa6ffd79a41a93eb
AveMariaRAT
b8ab1b11519bc6b1e834b01d385b9b15a297d05533eec1ea6f89fa0576370f24
AveMariaRAT
c805a81435618323cd34e9729b058df78e9c496d1d6c752cc3e5c7cb30f26613
AveMariaRAT
c838da7346e7f3373f9f1a84a073c248f785e82be48db979cdb339460402de06
AveMariaRAT
e9ef69bd0b38ec9381f02d44dd893c75ac6c1e6a96f4e320416636860d05d398
AveMariaRAT
ebbc6c8a9394818874d649441f0644f42f52fd0aac5090212a9908b4b8889d6e
AveMariaRAT
fc4b29f54e0b3ed0493ba85310a2665ab47e5143f3cb3ce09686f0560dd1ed04
AveMariaRAT
+ 513 additional samples on MalwareBazaar
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:warzonerat infostealer persistence rat
Link:
https://tria.ge/reports/201027-1eesbmbwwn/
Behaviour
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Program crash
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Adds Run key to start application
Drops startup file
Warzone RAT Payload
Modifies WinLogon for persistence
WarzoneRat, AveMaria
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Dropper
Score:
0.80
Link:
https://yomi.yoroi.company/submissions/047cc8e0672ffab0edff9ab97852667517b5d2ad28048037c126d06e3e28b8af

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:Chrome_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Chrome in files like avemaria
Rule name:Cobalt_functions
Create hunting rule
Author:@j0sm1
Description:Detect functions coded with ROR edi,D; Detect CobaltStrike used by differents groups APT
Rule name:Codoso_Gh0st_1
Create hunting rule
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
Create hunting rule
Author:Florian Roth
Description:Detects Codoso APT Gh0st Malware
Reference:https://www.proofpoint.com/us/exploring-bergard-old-malware-new-tricks
Rule name:Email_stealer_bin_mem
Create hunting rule
Author:James_inthe_box
Description:Email in files like avemaria
Rule name:MAL_Envrial_Jan18_1
Create hunting rule
Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:Ping_Del_method_bin_mem
Create hunting rule
Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:RDPWrap
Create hunting rule
Author:@bartblaze
Description:Identifies RDP Wrapper, sometimes used by attackers to maintain persistence.
Reference:https://github.com/stascorp/rdpwrap
Rule name:Stealer_word_in_memory
Create hunting rule
Author:James_inthe_box
Description:The actual word stealer in memory
Rule name:UAC_bypass_bin_mem
Create hunting rule
Author:James_inthe_box
Description:UAC bypass in files like avemaria
Rule name:win_ave_maria_auto
Create hunting rule
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.

Malspam

AveMariaRAT

arj da5535db8b6d60d5a1130ca5de7fb7235b85bf232493f6c831dcbc4de0b1ad51

AveMariaRAT

Executable exe 047cc8e0672ffab0edff9ab97852667517b5d2ad28048037c126d06e3e28b8af

(this sample)

  
Dropped by
MD5 31c97fb29fbf385b3130dacaf6062b39
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 da5535db8b6d60d5a1130ca5de7fb7235b85bf232493f6c831dcbc4de0b1ad51
Cape
Cape
https://www.capesandbox.com/analysis/79965/

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