MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b
SHA3-384 hash: 2c646b24e753b1c25bb7529c08f264820790e9e59850685b8e462cd6cc4b86f71cd96f440552cee6eb5c0bd4d3464d74
SHA1 hash: ce4970823850b4dde525492a07d0f4a0768680ca
MD5 hash: 0b6d552a2112526089b08ef478a17109
humanhash: october-xray-lake-xray
File name:0b6d552a2112526089b08ef478a17109.rtf
Download: download sample
File size:58'351 bytes
First seen:2023-09-11 15:16:19 UTC
Last seen:2023-09-11 15:36:34 UTC
File type:Rich Text Format (RTF) rtf
MIME type:text/rtf
ssdeep 768:JwAbZSibMX9gRWj4ats2dmMS5lQ1bqgiH70BFj25ibsl:JwAlRD28agb0BFj2J
TLSH T12E43E16DC34F41A9CF129377AB1A4E4502BCBB2EB38552B2346C433933EA83D51656B9
Reporter abuse_ch
Tags:CVE-2017-11882 rtf

Intelligence

File Origin
# of uploads :
2
# of downloads :
106
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
0b6d552a2112526089b08ef478a17109.rtf
Verdict:
Malicious activity
Analysis date:
2023-09-11 15:19:08 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/70920e55-e256-405c-b1f8-97ad0a9f46ac

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

TwinWave.EvilDoc.RoomService.20230808.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Searching for synchronization primitives
Launching a process
Creating a window
Сreating synchronization primitives
Result
Verdict:
Malicious
File Type:
RTF File
Link:
https://app.docguard.net/b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b/results/dashboard
Behaviour
BlacklistAPI detected
Gathering data
Verdict:
Malicious
Labled as:
CVE-2018-0802
Link:
https://www.hybrid-analysis.com/sample/b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b
Result
Verdict:
MALICIOUS
Result
Threat name:
n/a
Detection:
malicious
Classification:
expl
Score:
96 / 100
Link:
https://www.joesandbox.com/analysis/1307419
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
Antivirus detection for URL or domain
Malicious sample detected (through community Yara rule)
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 establishes network connection
Office equation editor starts processes (likely CVE 2017-11882 or CVE-2018-0802)
Behaviour
Behavior Graph:
Download SVG
Detection:
cve-2017-11882-shellcode
Create hunting rule
Link:
https://mwdb.cert.pl/sample/b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b/
Threat name:
Document-Office.Exploit.CVE-2017-11882
Create hunting rule
Status:
Malicious
First seen:
2023-09-11 11:02:17 UTC
File Type:
Document
Extracted files:
4
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=xftlvde2l2ba47s3nfhjomymkf77nk4ujjagfkysyvlinjgasmfq._file
Result
Malware family:
n/a
Score:
  8/10
Tags:
n/a
Link:
https://tria.ge/reports/230911-sn192aha23/
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
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/b966ba8c9a5e/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.99
Link:
https://yomi.yoroi.company/submissions/b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b

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:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
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

Rich Text Format (RTF) rtf b966ba8c9a5e820e7e5b694e97330c517ff6ab944a4062ab12c55686a4c0930b

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2710753/
  
Delivery method
Distributed via web download

Comments