MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 e1c65253212ac1e1b683e0fe76bdf5c166f6dae6dadf294a31784637f81ea259. 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: 14


Intelligence 14 IOCs YARA 2 File information Comments 1
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: e1c65253212ac1e1b683e0fe76bdf5c166f6dae6dadf294a31784637f81ea259
SHA3-384 hash: 1b766ca7f345e2c8e6aebd1145b8193a564cab453d9e9114944dad2638128c0ef9304c8762f8a278ee31cadf0db08edb
SHA1 hash: 9044c6519fae2eee86217b9b6fcbf0940b11ae1b
MD5 hash: e29430f973a27719574ae320d4a59007
humanhash: august-steak-skylark-charlie
File name:e29430f973a27719574ae320d4a59007
Download: download sample
Signature AveMariaRAT
Create hunting rule
File size:52'101 bytes
First seen:2023-08-03 06:37:39 UTC
Last seen:2023-08-03 09:59:21 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:+wAbZSibMX9gRWjZ4MVU4aZLOE9bkzZE4mN/idwhRAmZGWqJj:+wAlRGOBZLlt46RARj
TLSH T11E337B6DD34F0169CF5252779A1B0A4941FCBB7EB38412B1346C833933EE82D62266BD
Reporter zbetcheckin
Tags:AveMariaRAT CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
126
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
avemaria
Create hunting rule
ID:
1
File name:
e29430f973a27719574ae320d4a59007
Verdict:
Malicious activity
Analysis date:
2023-08-03 06:39:54 UTC
Tags:
exploit cve-2017-11882 loader stealer rat avemaria arkei warzone
Link:
https://app.any.run/tasks/5e9ad52a-dee2-4405-a31d-7360d90926b1

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

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
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
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/e1c65253212ac1e1b683e0fe76bdf5c166f6dae6dadf294a31784637f81ea259/results/dashboard
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit packed shellcode
Link:
https://www.filescan.io/uploads/64cb4b4b94fb102ea38c3f76/reports/beb8e274-c25b-482e-a5d4-afadfa6cdb0b/overview
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/e1c65253212ac1e1b683e0fe76bdf5c166f6dae6dadf294a31784637f81ea259
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/1284859
Signature
.NET source code contains potential unpacker
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Connects to many ports of the same IP (likely port scanning)
Contains functionality to hide user accounts
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 domain / URL
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: 1284859 Sample: RSEVaE5mcO.rtf Startdate: 03/08/2023 Architecture: WINDOWS Score: 100 55 Snort IDS alert for network traffic 2->55 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 19 other signatures 2->61 8 EQNEDT32.EXE 11 2->8         started        13 Yizozmus.exe 3 2->13         started        15 WINWORD.EXE 291 18 2->15         started        17 Yizozmus.exe 3 2->17         started        process3 dnsIp4 51 2.59.254.18, 49181, 80 CMCSUS Germany 8->51 45 C:\Users\user\...\ohoyecderhgj5784.exe, PE32 8->45 dropped 47 C:\Users\user\AppData\...\ohoyeczx[1].exe, PE32 8->47 dropped 71 Office equation editor establishes network connection 8->71 73 Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802) 8->73 19 ohoyecderhgj5784.exe 2 9 8->19         started        75 Antivirus detection for dropped file 13->75 77 Multi AV Scanner detection for dropped file 13->77 79 Machine Learning detection for dropped file 13->79 23 cmd.exe 13->23         started        49 ~WRF{66724ADB-9929...C-9B934837700D}.tmp, Composite 15->49 dropped 25 cmd.exe 17->25         started        file5 signatures6 process7 file8 43 C:\Users\user\AppData\Roaming\Yizozmus.exe, PE32 19->43 dropped 63 Antivirus detection for dropped file 19->63 65 Multi AV Scanner detection for dropped file 19->65 67 Machine Learning detection for dropped file 19->67 69 2 other signatures 19->69 27 aspnet_compiler.exe 3 4 19->27         started        31 cmd.exe 19->31         started        33 cmd.exe 19->33         started        35 ipconfig.exe 23->35         started        37 ipconfig.exe 25->37         started        signatures9 process10 dnsIp11 53 91.207.102.163, 23795, 49182 M247GB Romania 27->53 81 Tries to steal Mail credentials (via file / registry access) 27->81 83 Tries to harvest and steal browser information (history, passwords, etc) 27->83 85 Increases the number of concurrent connection per server for Internet Explorer 27->85 87 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->87 89 Uses ipconfig to lookup or modify the Windows network settings 31->89 39 ipconfig.exe 31->39         started        41 ipconfig.exe 33->41         started        signatures12 process13
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/e1c65253212ac1e1b683e0fe76bdf5c166f6dae6dadf294a31784637f81ea259/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-08-02 07:49:37 UTC
File Type:
Document
Extracted files:
3
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=4hdfeuzbfla6dnud4d7hnppvyftpnwxg3lpsssrrpbddp6a6ujmq._file
Result
Malware family:
warzonerat
Create hunting rule
Score:
  10/10
Tags:
family:warzonerat infostealer persistence rat
Link:
https://tria.ge/reports/230803-hd2spsbg36/
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:
91.207.102.163:23795
Malware family:
Warzone
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/e1c65253212a/report/overview.html
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: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 e1c65253212ac1e1b683e0fe76bdf5c166f6dae6dadf294a31784637f81ea259

(this sample)

  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2696840/

Comments


Avatar
zbet commented on 2023-08-03 06:37:39 UTC

url : hxxp://2.59.254.18/_errorpages/ohoyeczx.doc