MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6cfbccb11f896f464d542f8ad058c714b375021eec87a2238cdfdb6f99a1d7e. 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:	b6cfbccb11f896f464d542f8ad058c714b375021eec87a2238cdfdb6f99a1d7e
SHA3-384 hash:	b57dfaaeaaf0f5394f0849009369a3d50be2b1de8bea2276557e08e8a79c1311255f3a1353b76d5909678a4b538b2bff
SHA1 hash:	c867b6bb6fae9bbc790f2a90f76f8036944f3e5d
MD5 hash:	2ecf0ef101b480a10dc3c6c46e17eeb1
humanhash:	maryland-hot-kitten-sad
File name:	2ecf0ef101b480a10dc3c6c46e17eeb1
Download:	download sample
File size:	17'180 bytes
First seen:	2023-02-19 07:33:15 UTC
Last seen:	2023-02-19 09:32:12 UTC
File type:	rtf
MIME type:	text/rtf
ssdeep	384:gii6qE9YMKVo4TqkafpLsH3DE4AzDdrQ6/82gvx/mLrBFtPfTI:7iXlo4TjafpulAPSVx/wNPnTI
TLSH	T130723A501BCD98F1E269E173826D840E4ABEE05734479AD878CDA54237BD20E4EF92F5
Reporter	zbetcheckin
Tags:	CVE-2017-11882 rtf

Intelligence

File Origin

# of uploads :

# of downloads :

117

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

2ecf0ef101b480a10dc3c6c46e17eeb1

Verdict:

Malicious activity

Analysis date:

2023-02-19 07:34:16 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/f12bbf95-ab76-497b-9bbf-f11063b8a314

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Malicious

File type:

application/rtf

Has a screenshot:

False

Contains macros:

False

Detection(s):

Sanesecurity.Malware.28766.RtfHeur.UNOFFICIAL

MiscreantPunch.RTF.2017-0199.Obfus.171711.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Creating a window

Сreating synchronization primitives

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

CVE-2017-11882 embedequation exploit shellcode

Link:

https://www.filescan.io/uploads/63f1d0ec9dd875fc9126b848/reports/6063bb11-1071-41e0-a1b1-5a2bbd4faf9a/overview

Verdict:

Malicious

Labled as:

CVE-2017-11882

Link:

https://www.hybrid-analysis.com/sample/b6cfbccb11f896f464d542f8ad058c714b375021eec87a2238cdfdb6f99a1d7e

Result

Verdict:

MALICIOUS

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl

Score:

92 / 100

Link:

https://www.joesandbox.com/analysis/1178788

Signature

Antivirus / Scanner detection for submitted sample

Antivirus detection for URL or domain

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

Multi AV Scanner detection for submitted file

Office equation editor establishes network connection

Sigma detected: EQNEDT32.EXE connecting to internet

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/b6cfbccb11f896f464d542f8ad058c714b375021eec87a2238cdfdb6f99a1d7e/

Threat name:

Document-RTF.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2023-02-16 13:56:59 UTC

File Type:

Document

Extracted files:

AV detection:

13 of 25 (52.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=w3h3zsyr7clpizgvil4k2bmmofftoubb53ehuiryzx63n6m2dv7a._file

Result

Malware family:

n/a

Score:

8/10

Tags:

n/a

Link:

https://tria.ge/reports/230219-jd4sqsfa76/

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 FindShellTrayWindow

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.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/b6cfbccb11f896f464d542f8ad058c714b375021eec87a2238cdfdb6f99a1d7e

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

rtf b6cfbccb11f896f464d542f8ad058c714b375021eec87a2238cdfdb6f99a1d7e

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2544586/

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

zbet commented on 2023-02-19 07:33:21 UTC

url : hxxp://79.110.62.142/OO.DOC