MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d. 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:	aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d
SHA3-384 hash:	ff56e1ecc16149751dbbc5dc10943e4184755e6e621180560f5920a3b52601a1174ad0ac90da74f91da46bfea8f4339c
SHA1 hash:	1875faf01851f1d54a54f570020da59dcc68f51d
MD5 hash:	6257f72a375470f80f8d0802b8d9305a
humanhash:	mirror-uniform-hot-red
File name:	6257f72a375470f80f8d0802b8d9305a
Download:	download sample
File size:	78'863 bytes
First seen:	2024-03-26 06:15:13 UTC
Last seen:	2024-03-26 08:23:05 UTC
File type:	rtf
MIME type:	text/rtf
ssdeep	768:XwAbZSibMX9gRWj0Hw8QcOBiuMBngaljxRDyVQW+B1eP+:XwAlRDNQcFLlj/GCwP+
TLSH	T19673BD6CD34B01698F525337AB1B1E5542BDBA2EF38452B1346C533933EAC3DA1262BD
Reporter	zbetcheckin
Tags:	CVE-2017-11882 rtf

Intelligence

File Origin

# of uploads :

# of downloads :

145

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d.rtf

Verdict:

Suspicious activity

Analysis date:

2024-03-26 06:17:19 UTC

Tags:

n/a

Link:

https://app.any.run/tasks/02861f7b-5f3d-4a9d-ba3c-bbb7e66dfbd4

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

Creating a window

Сreating synchronization primitives

Using the Windows Management Instrumentation requests

Result

Verdict:

Malicious

File Type:

RTF File

Link:

https://app.docguard.net/aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d/results/dashboard

Behaviour

BlacklistAPI detected

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Link:

https://www.filescan.io/uploads/6602682476a204da5db30645/reports/c8d0cf9c-ce73-46e7-a913-0ae42fdd3c26/overview

Verdict:

Malicious

Labled as:

TR/AVI.Obfuscated

Link:

https://www.hybrid-analysis.com/sample/aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d

Result

Verdict:

MALICIOUS

Result

Threat name:

n/a

Detection:

malicious

Classification:

expl

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1415597

Signature

Antivirus detection for URL or domain

Document exploit detected (process start blacklist hit)

Installs new ROOT certificates

Malicious sample detected (through community Yara rule)

Multi AV Scanner detection for domain / URL

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)

Sigma detected: Equation Editor Network Connection

Behaviour

Behavior Graph:

Download SVG

Score:

99%

Verdict:

Malware

File Type:

SCRIPT

Link:

https://malprob.io/report/aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d

Detection:

cve-2017-11882-shellcode

Link:

https://mwdb.cert.pl/sample/aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d/

Threat name:

Document-Office.Exploit.CVE-2017-11882

Status:

Malicious

First seen:

2024-03-25 14:03:03 UTC

File Type:

Document

Extracted files:

AV detection:

14 of 24 (58.33%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=vijp7sh7u76kozguouiqkbwt4mxkjwfeyl3rbdi324i2az3picgq._file

Result

Malware family:

n/a

Score:

8/10

Tags:

n/a

Link:

https://tria.ge/reports/240326-g1fy3sdd99/

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/aa12ffc8ffa7/report/overview.html

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/aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d

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 aa12ffc8ffa7fca764d475110506d3e32ea4d8a4c2f7108d1bd711a0676f408d

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2792770/

Comments

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zbet commented on 2024-03-26 06:15:14 UTC

url : hxxp://covid19help.top/arinze20.doc