MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b8ab1b11519bc6b1e834b01d385b9b15a297d05533eec1ea6f89fa0576370f24. 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: 7


Intelligence 7 IOCs YARA 11 File information Comments
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SHA256 hash: b8ab1b11519bc6b1e834b01d385b9b15a297d05533eec1ea6f89fa0576370f24
SHA3-384 hash: a879a858145e638836bc00a95608ba95c64cf4f2e8ca65a46f7b595a07419dd76a5acba25b10654ca1ab1ba9cea6f183
SHA1 hash: 99c19fdace73134eadc5a017665cb2ffce01690b
MD5 hash: d0285d36a543c2601ffdb5b3133b0b62
humanhash: one-nineteen-fish-kitten
File name:Documentos de pago bancario 36587634 Bisa2020.exe
Download: download sample
Signature AveMariaRAT
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File size:455'328 bytes
First seen:2020-10-22 06:24:24 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'650 x AgentTesla, 19'462 x Formbook, 12'203 x SnakeKeylogger)
ssdeep 3072:CwNNgeSQxpLrklvmcuO9cjHjrzr0rzr7rzrarzrLrzrUrzr1OhzEZE71abf2E4fV:WeSQ7Lrkl+cuRjHPhuaTABE
Threatray 501 similar samples on MalwareBazaar
TLSH 86A4C98E24CBECABDDB057685AF159745AF034A7158ADBA94CC099D8F3A0180374BDCF
Reporter abuse_ch
Tags:AveMariaRAT ESP exe geo RAT


Avatar
abuse_ch
Malspam distributing AveMariaRAT:

HELO: mx1.e-tiger.net
Sending IP: 193.23.139.20
From: Banco BISA S.A <no-reply@posta.hu>
Subject: Rv:Transferencia de dinero
Attachment: Documentos de pago bancario 36587634 Bisa2020.arj (contains "Documentos de pago bancario 36587634 Bisa2020.exe")

AveMariaRAT C2:
178.170.138.163:4554

Intelligence

File Origin
# of uploads :
1
# of downloads :
77
Origin country :
n/a
Vendor Threat Intelligence
Detection(s):
SecuriteInfo.com.Trojan.GenericKD.44149764.28187.24748.UNOFFICIAL
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Result
Verdict:
Malware
Maliciousness:

Behaviour
DNS request
Launching a process
Creating a process with a hidden window
Adding an access-denied ACE
Creating a file
Connection attempt
Sending a TCP request to an infection source
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Forced shutdown of a system process
Enabling autorun by creating a file
Enabling autorun
Unauthorized injection to a system process
Result
Threat name:
AveMaria
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Detection:
malicious
Classification:
phis.troj.adwa.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/506623
Signature
Connects to a pastebin service (likely for C&C)
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
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)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Writes to foreign memory regions
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 302484 Sample: Documentos de pago bancario... Startdate: 22/10/2020 Architecture: WINDOWS Score: 100 64 Malicious sample detected (through community Yara rule) 2->64 66 Yara detected AveMaria stealer 2->66 68 Executable has a suspicious name (potential lure to open the executable) 2->68 70 7 other signatures 2->70 7 Documentos de pago bancario 36587634 Bisa2020.exe 18 4 2->7         started        12 Documentos de pago bancario 36587634 Bisa2020.exe 2->12         started        14 Documentos de pago bancario 36587634 Bisa2020.exe 2 2->14         started        16 3 other processes 2->16 process3 dnsIp4 56 www.google.it 172.217.168.3 GOOGLEUS United States 7->56 58 hastebin.com 104.24.127.89, 443, 49712, 49730 CLOUDFLARENETUS United States 7->58 50 Documentos de pago...587634 Bisa2020.exe, PE32 7->50 dropped 52 Documentos de pago...exe:Zone.Identifier, ASCII 7->52 dropped 80 Creates an undocumented autostart registry key 7->80 82 Writes to foreign memory regions 7->82 84 Hides threads from debuggers 7->84 18 aspnet_state.exe 3 2 7->18         started        22 timeout.exe 1 7->22         started        24 WerFault.exe 23 9 7->24         started        86 Creates autostart registry keys with suspicious names 12->86 88 Creates multiple autostart registry keys 12->88 90 Injects a PE file into a foreign processes 12->90 26 timeout.exe 12->26         started        60 192.168.2.1 unknown unknown 14->60 28 timeout.exe 1 14->28         started        34 2 other processes 14->34 62 172.67.143.180, 443, 49743, 49749 CLOUDFLARENETUS United States 16->62 30 timeout.exe 16->30         started        32 timeout.exe 16->32         started        36 5 other processes 16->36 file5 signatures6 process7 dnsIp8 54 178.170.138.163, 4554 ETOP-ASPL Netherlands 18->54 72 Contains functionality to inject threads in other processes 18->72 74 Contains functionality to steal Chrome passwords or cookies 18->74 76 Contains functionality to steal e-mail passwords 18->76 78 2 other signatures 18->78 38 conhost.exe 22->38         started        40 conhost.exe 26->40         started        42 conhost.exe 28->42         started        44 conhost.exe 30->44         started        46 conhost.exe 32->46         started        48 conhost.exe 36->48         started        signatures9 process10
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b8ab1b11519bc6b1e834b01d385b9b15a297d05533eec1ea6f89fa0576370f24/
Threat name:
ByteCode-MSIL.Trojan.Wacatac
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Status:
Suspicious
First seen:
2020-10-21 19:18:56 UTC
AV detection:
26 of 48 (54.17%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=xcvrwekrtpdld2buwaotqw43cwrjpucvgpxmd2tprh5ak5rxb4sa._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
Similar samples:
18ec681c471f185edf3ab8e23b52b4ea2a87162f9957b4d5d10ac0e2bc008405
AveMariaRAT
2850ddcebc7ed468cb0db271e54956468f0c93dd57a233665646d28cb1139373
AveMariaRAT
52e8ebb47ae631081c6ac0ab78219951e8c7ac540e11b420e92d5df89ea719d7
AveMariaRAT
5b92d7f869973b50de0c707ce58afacd6f1202364283c7dffa6ffd79a41a93eb
AveMariaRAT
a21a0d414080476ea51f99a3d207c12e1e9b15646b39338e989ed817a91429f6
AveMariaRAT
c805a81435618323cd34e9729b058df78e9c496d1d6c752cc3e5c7cb30f26613
AveMariaRAT
c838da7346e7f3373f9f1a84a073c248f785e82be48db979cdb339460402de06
AveMariaRAT
e9ef69bd0b38ec9381f02d44dd893c75ac6c1e6a96f4e320416636860d05d398
AveMariaRAT
ebbc6c8a9394818874d649441f0644f42f52fd0aac5090212a9908b4b8889d6e
AveMariaRAT
fc4b29f54e0b3ed0493ba85310a2665ab47e5143f3cb3ce09686f0560dd1ed04
AveMariaRAT
+ 491 additional samples on MalwareBazaar
Result
Malware family:
warzonerat
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Score:
  10/10
Tags:
rat persistence infostealer family:warzonerat
Link:
https://tria.ge/reports/201022-z49smq7qz2/
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
Unpacked files
SH256 hash:
b8ab1b11519bc6b1e834b01d385b9b15a297d05533eec1ea6f89fa0576370f24
MD5 hash:
d0285d36a543c2601ffdb5b3133b0b62
SHA1 hash:
99c19fdace73134eadc5a017665cb2ffce01690b
Link:
https://www.unpac.me/results/b45c9c8d-dacf-46b6-ab44-4b2714e4aba2/
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:Chrome_stealer_bin_mem
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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
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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
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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
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Author:Florian Roth
Description:Detects Encrial credential stealer malware
Reference:https://twitter.com/malwrhunterteam/status/953313514629853184
Rule name:Ping_Del_method_bin_mem
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Author:James_inthe_box
Description:cmd ping IP nul del
Rule name:RDPWrap
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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
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Author:James_inthe_box
Description:The actual word stealer in memory
Rule name:UAC_bypass_bin_mem
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Author:James_inthe_box
Description:UAC bypass in files like avemaria
Rule name:win_ave_maria_auto
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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 0f0268c42f3d96696160b7ad707a939450cfc0206ea38d1115246fd523831ec5

AveMariaRAT

Executable exe b8ab1b11519bc6b1e834b01d385b9b15a297d05533eec1ea6f89fa0576370f24

(this sample)

  
Dropped by
MD5 b5e21242c608c935bc8031301076f6de
  
Delivery method
Distributed via e-mail attachment
  
Dropped by
SHA256 0f0268c42f3d96696160b7ad707a939450cfc0206ea38d1115246fd523831ec5

Comments