MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 937081feb5a92bd12a4dd14da3180bbf029bd4ccc537f2d7c15617bd65960478. 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: 13


Intelligence 13 IOCs YARA 2 File information Comments 1

SHA256 hash: 937081feb5a92bd12a4dd14da3180bbf029bd4ccc537f2d7c15617bd65960478
SHA3-384 hash: 546fb4c1964b1f3aa55ddfca04de7537892d680fcbc77780659cd99ff8525dd4783a2297de3b092fd6950f8380604643
SHA1 hash: 00214e7461ba5ebfd8ba34d80ea6aa3d3923ede6
MD5 hash: 15c3e84e2d85208e9a8ae0002937ad01
humanhash: lion-white-green-potato
File name:15c3e84e2d85208e9a8ae0002937ad01
Download: download sample
File size:484'715 bytes
First seen:2024-06-14 03:52:39 UTC
Last seen:2024-06-14 07:21:55 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 6144:XwAYwAYwAYwAYwAYwAYwAYwAYwAYwAIQOWpG4:o
TLSH T199A48A2DD34B02598F620377AB571E5142BDBA7EF38552B1306C437933EAC39A1252BE
Reporter zbetcheckin
Tags:CVE-2017-11882 rtf

Intelligence


File Origin
# of uploads :
2
# of downloads :
140
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
3bf39aac223631e4b894209b24b7adc54bb2ae156470970326bfe2e19e7532b0.doc
Verdict:
Malicious activity
Analysis date:
2024-06-11 20:55:49 UTC
Tags:
cve-2017-0199 exploit

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Legit
File type:
application/rtf
Has a screenshot:
False
Contains macros:
False
Verdict:
Malicious
Score:
99.1%
Tags:
Network Office Static Stealth Obfsobjdat
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Using the Windows Management Instrumentation requests
Creating a window
Connection attempt to an infection source by exploiting the app vulnerability
Сreating synchronization primitives
Launching a service
Query of malicious DNS domain
Sending a TCP request to an infection source by exploiting the app vulnerability
Result
Verdict:
Malicious
File Type:
RTF File
Behaviour
BlacklistAPI detected
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
80 / 100
Signature
Antivirus detection for URL or domain
Document exploit detected (process start blacklist hit)
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Office equation editor establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Sigma detected: Equation Editor Network Connection
Behaviour
Behavior Graph:
Threat name:
Document-Office.Exploit.CVE-2017-11882
Status:
Malicious
First seen:
2024-06-11 06:47:01 UTC
File Type:
Document
Extracted files:
4
AV detection:
15 of 24 (62.50%)
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 use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Office loads VBA resources, possible macro or embedded object present
Drops file in Windows directory
Blocklisted process makes network request
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 937081feb5a92bd12a4dd14da3180bbf029bd4ccc537f2d7c15617bd65960478

(this sample)

  
Delivery method
Distributed via web download

Comments



Avatar
zbet commented on 2024-06-14 03:52:40 UTC

url : hxxp://covid19help.top/looud.doc