MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aec7bb752bfb4fb49d6d363db8393e84a05da72cd3b54a9b368bc43adcd3f08d. 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 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: aec7bb752bfb4fb49d6d363db8393e84a05da72cd3b54a9b368bc43adcd3f08d
SHA3-384 hash: ee1c89f095dd60bed06da5b1f9d5ab17fa688eaa2cba56475459038761e27c399412daf11bb038ad0fc6667f91a25363
SHA1 hash: 61dc8f54fb15f2fbd73c0e9e0dda2c6bc8fa29e8
MD5 hash: 537430be99baa01b2d44782c7ca1c05b
humanhash: mirror-saturn-september-delaware
File name:Invoice.exe
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:507'904 bytes
First seen:2020-08-31 06:00:41 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:bsHPRx+RXWRbditqZQsgncxbdFbwtxDEMPreOqz6kWkRpnJ1:bsHPRx1bAtqbgncxbdhA
Threatray 425 similar samples on MalwareBazaar
TLSH 82B4BEAC364476DFC8A7CD768A682C20EA6078A75B0FD203901715DD9A1EADBCF115F3
Reporter abuse_ch
Tags:AveMariaRAT exe RAT


Avatar
abuse_ch
Malspam distributing AveMariaRAT:

HELO: hwhk220-67.mailset.cn
Sending IP: 36.255.220.67
From: sherry <sherry@wengu168.com>
Subject: sample order
Attachment: sample order.zip (contains "Invoice.exe")

Intelligence

File Origin
# of uploads :
1
# of downloads :
87
Origin country :
n/a
Vendor Threat Intelligence
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/53274/
Detection(s):
SecuriteInfo.com.W32.Trojan-7.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a UDP request
Creating a file in the %AppData% directory
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Creating a file
Creating a process from a recently created file
Unauthorized injection to a recently created process
Enabling autorun with the standard Software\Microsoft\Windows\CurrentVersion\Run registry branch
Enabling autorun by creating a file
Result
Threat name:
AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/454911
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent)
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
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Sigma detected: Scheduled temp file as task from temp location
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected AveMaria stealer
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 279836 Sample: Invoice.exe Startdate: 31/08/2020 Architecture: WINDOWS Score: 100 61 Malicious sample detected (through community Yara rule) 2->61 63 Antivirus detection for dropped file 2->63 65 Antivirus / Scanner detection for submitted sample 2->65 67 11 other signatures 2->67 9 Invoice.exe 7 2->9         started        13 images.exe 4 2->13         started        process3 file4 43 C:\Users\user\AppData\Roaming\aaJbJKr.exe, PE32 9->43 dropped 45 C:\Users\user\...\aaJbJKr.exe:Zone.Identifier, ASCII 9->45 dropped 47 C:\Users\user\AppData\Local\...\tmp622B.tmp, XML 9->47 dropped 49 C:\Users\user\AppData\...\Invoice.exe.log, ASCII 9->49 dropped 69 Contains functionality to inject threads in other processes 9->69 71 Contains functionality to steal Chrome passwords or cookies 9->71 73 Contains functionality to steal e-mail passwords 9->73 75 Contains functionality to check if a debugger is running (CheckRemoteDebuggerPresent) 9->75 15 Invoice.exe 5 5 9->15         started        19 schtasks.exe 1 9->19         started        21 Invoice.exe 9->21         started        77 Injects a PE file into a foreign processes 13->77 23 schtasks.exe 13->23         started        25 images.exe 13->25         started        signatures5 process6 file7 51 C:\ProgramData\images.exe, PE32 15->51 dropped 53 C:\ProgramData\images.exe:Zone.Identifier, ASCII 15->53 dropped 57 Increases the number of concurrent connection per server for Internet Explorer 15->57 59 Hides that the sample has been downloaded from the Internet (zone.identifier) 15->59 27 images.exe 5 15->27         started        30 conhost.exe 19->30         started        32 conhost.exe 23->32         started        signatures8 process9 signatures10 79 Antivirus detection for dropped file 27->79 81 Multi AV Scanner detection for dropped file 27->81 83 Machine Learning detection for dropped file 27->83 85 Injects a PE file into a foreign processes 27->85 34 images.exe 2 27->34         started        37 schtasks.exe 1 27->37         started        39 images.exe 27->39         started        process11 dnsIp12 55 79.134.225.52, 49727, 49729, 49731 FINK-TELECOM-SERVICESCH Switzerland 34->55 41 conhost.exe 37->41         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/aec7bb752bfb4fb49d6d363db8393e84a05da72cd3b54a9b368bc43adcd3f08d/
Threat name:
ByteCode-MSIL.Trojan.Sudloader
Create hunting rule
Status:
Malicious
First seen:
2020-08-30 19:40:58 UTC
AV detection:
24 of 29 (82.76%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=v3d3w5jl7nh3jhlngy63qoj6qsqf3jzm2o2uvgzwrpcdvxgt6cgq._file
Verdict:
malicious
Label(s):
avemaria
Create hunting rule
Similar samples:
578df50c34d2f8f3146e5c4a457c4e9eac639070d3766ba202c84af6a790d4a7
AveMariaRAT
60d7b2ab0fb53d37576c2edd50231cc82e87d0c0cee85afddac247cb795164c3
AveMariaRAT
61079c74aff96424d4b6d794636faa4d7bfd9df2ba67a506164d4168ca6bb234
AveMariaRAT
67cc16a792204c4e3e4b0498f798332fd8820c6efe76509397eaf7f3e0885cb4
AveMariaRAT
7512bd9a7cde4e858daf59614a6933bfc8190aba1dbe6d4221c5e8b8b1750643
AveMariaRAT
9d71c01a2e63e041ca58886eba792d3fc0c0064198d225f2f0e2e70c6222365c
AveMariaRAT
b612173e75cc939bb718725850a57a1487095d863db268758b5ee0bf2463f89d
AveMariaRAT
de4c58d6778afedc71c7df851b18de746b45829a4370cf28a64094a0ac27ef6b
AveMariaRAT
e1b924fa9552fc6bccfe3134bd3930b41ddbb93854e4a82cd6df2344496e5948
AveMariaRAT
e97d4cbbbb923b04cee8f87235ad15ab83a7cba51984422cdfdcfefa7e81d457
AveMariaRAT
+ 415 additional samples on MalwareBazaar
Result
Malware family:
n/a
Score:
  8/10
Tags:
persistence
Link:
https://tria.ge/reports/200831-kleh5vrflj/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Creates scheduled task(s)
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Drops file in Windows directory
Suspicious use of SetThreadContext
Suspicious use of SetThreadContext
Adds Run key to start application
Adds Run key to start application
Loads dropped DLL
Executes dropped EXE
Executes dropped EXE
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
AgentTesla
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/aec7bb752bfb4fb49d6d363db8393e84a05da72cd3b54a9b368bc43adcd3f08d

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
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: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: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: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

zip 352a15dc1e3ee770266d28c7a86bff3e099367919a9ce5fe694ce6c849806424

AveMariaRAT

Executable exe aec7bb752bfb4fb49d6d363db8393e84a05da72cd3b54a9b368bc43adcd3f08d

(this sample)

  
Dropped by
MD5 75e264a27f0e065f790340734a7df009
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/53274/
  
Dropped by
SHA256 352a15dc1e3ee770266d28c7a86bff3e099367919a9ce5fe694ce6c849806424

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