MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576. 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: 15


Intelligence 15 IOCs YARA 2 File information Comments
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SHA256 hash: 6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576
SHA3-384 hash: 2dc8cca5e1435e48e67304d7da76ab77a276f11a77d482bde5fcce3de21cf1897a3d6a86fcd2e4af0eaab5a45a011e86
SHA1 hash: 7fada09da43d8816048c1052590c3e7e0c6f7651
MD5 hash: 2bb765bd15e09b84698157a6f3e103a6
humanhash: solar-queen-don-early
File name:2bb765bd15e09b84698157a6f3e103a6.rtf
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:59'791 bytes
First seen:2023-08-03 08:00:31 UTC
Last seen:2023-08-03 08:49:32 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:ztwAbZSibMX9gRWj9kckz2Jr/g8iOM3ZPqA1eAFGjnaghrg/Bauzt:hwAlRkg+qZPkXrg/BauR
TLSH T1E6436A6CD34F02A9CF62527B9A1A0E4541FCBB7EF28512A134AC533533EEC2DA12567D
Reporter abuse_ch
Tags:AveMariaRAT CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
128
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
avemaria
Create hunting rule
ID:
1
File name:
2bb765bd15e09b84698157a6f3e103a6.rtf
Verdict:
Malicious activity
Analysis date:
2023-08-03 08:02:31 UTC
Tags:
exploit cve-2017-11882 loader stealer rat avemaria warzone arkei
Link:
https://app.any.run/tasks/9b55b1ef-b718-400e-9ad8-a681baa10bc3

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Sanesecurity.Malware.29015.RtfHeur.Msg.UNOFFICIAL
Create hunting rule

Sanesecurity.Shelter.Malware.BadRtf.ObjUpd.UNOFFICIAL
Create hunting rule

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending a custom TCP request
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file in the %AppData% directory
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Sending an HTTP GET request to an infection source by exploiting the app vulnerability
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit shellcode
Link:
https://www.filescan.io/uploads/64cb5ec0539838c2be520a3f/reports/785387c3-6f03-4be8-bf73-b6fafd99f7a8/overview
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576
Result
Verdict:
MALICIOUS
Result
Threat name:
AveMaria
Create hunting rule
Detection:
malicious
Classification:
phis.troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1284956
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Contains functionality to hide user accounts
Contains functionality to steal Chrome passwords or cookies
Contains functionality to steal e-mail passwords
Found malware configuration
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
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Office document tries to convince victim to disable security protection (e.g. to enable ActiveX or Macros)
Office equation editor drops PE file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Snort IDS alert for network traffic
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Uses ipconfig to lookup or modify the Windows network settings
Writes to foreign memory regions
Yara detected AveMaria stealer
Yara detected Costura Assembly Loader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1284956 Sample: wJYi3o70p6.rtf Startdate: 03/08/2023 Architecture: WINDOWS Score: 100 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 15 other signatures 2->55 8 EQNEDT32.EXE 11 2->8         started        13 Omddqoecz.exe 3 2->13         started        15 WINWORD.EXE 336 17 2->15         started        17 2 other processes 2->17 process3 dnsIp4 45 2.59.254.18, 49181, 80 CMCSUS Germany 8->45 41 C:\Users\user\AppData\...\pablohgj57848.exe, PE32 8->41 dropped 43 C:\Users\user\AppData\...\pablozx[1].exe, PE32 8->43 dropped 65 Office equation editor establishes network connection 8->65 67 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->67 19 pablohgj57848.exe 2 9 8->19         started        69 Multi AV Scanner detection for dropped file 13->69 71 Machine Learning detection for dropped file 13->71 23 cmd.exe 13->23         started        file5 signatures6 process7 file8 39 C:\Users\user\AppData\Roaming\Omddqoecz.exe, PE32 19->39 dropped 57 Multi AV Scanner detection for dropped file 19->57 59 Machine Learning detection for dropped file 19->59 61 Writes to foreign memory regions 19->61 63 Injects a PE file into a foreign processes 19->63 25 aspnet_compiler.exe 3 4 19->25         started        29 cmd.exe 19->29         started        31 cmd.exe 19->31         started        33 ipconfig.exe 23->33         started        signatures9 process10 dnsIp11 47 62.102.148.185, 49182, 64544 TEKNIKBYRANSE Sweden 25->47 73 Tries to steal Mail credentials (via file / registry access) 25->73 75 Contains functionality to steal Chrome passwords or cookies 25->75 77 Contains functionality to steal e-mail passwords 25->77 81 3 other signatures 25->81 79 Uses ipconfig to lookup or modify the Windows network settings 29->79 35 ipconfig.exe 29->35         started        37 ipconfig.exe 31->37         started        signatures12 process13
Detection:
avemaria
Create hunting rule
Link:
https://mwdb.cert.pl/sample/6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-03 07:29:10 UTC
File Type:
Document
Extracted files:
4
AV detection:
15 of 24 (62.50%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=nn76mguezsf6l4a42pvqsuxxzzbgxisztggfpjevido6zkulqv3a._file
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:warzonerat infostealer persistence rat
Link:
https://tria.ge/reports/230803-jwkgtadd4x/
Behaviour
Gathers network information
Launches Equation Editor
Suspicious behavior: AddClipboardFormatListener
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Adds Run key to start application
Executes dropped EXE
Loads dropped DLL
Blocklisted process makes network request
Downloads MZ/PE file
Warzone RAT payload
WarzoneRat, AveMaria
Malware Config
C2 Extraction:
62.102.148.185:64544
Malware family:
Warzone
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/6b7fe61a84cc/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576

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:INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embeding one of the object mostly observed in exploit documents.
Rule name:SUSP_INDICATOR_RTF_MalVer_Objects
Create hunting rule
Author:ditekSHen
Description:Detects RTF documents with non-standard version and embedding one of the object mostly observed in exploit (e.g. CVE-2017-11882) documents.
Reference:https://github.com/ditekshen/detection

File information

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

Web download

AveMariaRAT

Rich Text Format (RTF) rtf 6b7fe61a84cc8be5f01cd3eb0952f7ce426ba259998c57a49540ddecaa8b8576

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2695999/
  
Delivery method
Distributed via web download

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