MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 3f092421ded47e51764275f6267cd92ee66063d3d4b8695a4b917a1c59fbf69a. 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



Threat unknown


Vendor detections: 11


Intelligence 11 IOCs YARA 2 File information Comments 1

SHA256 hash: 3f092421ded47e51764275f6267cd92ee66063d3d4b8695a4b917a1c59fbf69a
SHA3-384 hash: 24354d944f2f71f35029b3dc491c8009766d2d8f79152d3b3e09d02d4479368df8cc21c3ea0b52a45ba9edd292c7de43
SHA1 hash: 8bd1c77e03f04300e62db57763baeaae05dc7d53
MD5 hash: 2649a0cdd385220ace4898e1f3f5b377
humanhash: black-bravo-jersey-king
File name:2649a0cdd385220ace4898e1f3f5b377
Download: download sample
File size:25'102 bytes
First seen:2023-05-29 06:44:55 UTC
Last seen:2023-05-29 07:19:57 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:NL4dQjZbIs8XLKl/bWQrabnOEwEIr8jVHGHYc7Pyk16sS5:tttbIs8XsDFkOE7AFPyAXS5
TLSH T1AFB2F2566B8C4C61E26AE87B835EE00E08BCF63631C245D5BD9DE2717B3D14E0B671B8
Reporter zbetcheckin
Tags:CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
2
# of downloads :
160
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
2649a0cdd385220ace4898e1f3f5b377
Verdict:
Malicious activity
Analysis date:
2023-05-29 06:46:34 UTC
Tags:
opendir exploit cve-2017-11882 loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Creating a file
Сreating synchronization primitives
Reading critical registry keys
Creating a file in the %temp% directory
Creating a file in the %AppData% subdirectories
Sending an HTTP GET request
Creating a process from a recently created file
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
embedequation exploit greyware lolbin packed shell32.dll shellcode stealer
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Drops PE files to the user root directory
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
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)
Shellcode detected
Sigma detected: EQNEDT32.EXE connecting to internet
Sigma detected: File Dropped By EQNEDT32EXE
Behaviour
Behavior Graph:
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2023-05-28 11:27:58 UTC
File Type:
Document
Extracted files:
4
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Behaviour
Checks processor information in registry
Enumerates system info in registry
Launches Equation Editor
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: GetForegroundWindowSpam
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Executes dropped EXE
Loads dropped DLL
Uses the VBS compiler for execution
Blocklisted process makes network request
Downloads MZ/PE file
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
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
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

Rich Text Format (RTF) rtf 3f092421ded47e51764275f6267cd92ee66063d3d4b8695a4b917a1c59fbf69a

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2023-05-29 06:44:56 UTC

url : hxxp://192.210.175.102/test/%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23%23.doc