PDF malware analysis — malicious · fdac3eb5754c72f4

MALICIOUS

PDF

70.7 KB Created: 2021-10-02 12:09:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27

MD5: 65367755d6160863350da307351a56e7 SHA-1: 1a2e49467c5b07a9f61ffa2ea07d0bcffdb57e7d SHA-256: fdac3eb5754c72f4ad6f803b5cb76321a065473ac2820fcd17b908ab0e916ed0

134 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The sample was detected as malicious by ClamAV and an ML classifier, and it contains embedded JavaScript. This JavaScript likely redirects to external URLs, as indicated by the PDF_URI heuristic and the numerous extracted URLs. The presence of JavaScript points to an attempt to execute malicious code within the PDF, which is a common technique for phishing or delivering further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9951

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://garglob.ru/uplcv?utm_term=see+the+latex+manual+or+latex+companion+for+explanation PDF link annotation
- http://sentezetutmerkezi.com/upload/ckfinder/files/fubobuxajopopulefesegij.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/5c5c4603633434869597ecab072a20c9/29573426882.pdfIn PDF document text
- https://anakmeong.com/contents/files/59431358483.pdfIn PDF document text
- http://tajeer.co/userfiles/file/kebexobazukefolasapapuxib.pdfIn PDF document text
- https://starfoil-mail.nl/uploads/wysiwyg/72775950086.pdfIn PDF document text
- http://ideviceplus.be/app/webroot/files/userfiles/files/20347506242.pdfIn PDF document text
- https://safecampus.in/cmsCart/upload/file/86813345385.pdfIn PDF document text
- https://mk-sito.it/uploads/file/90955126846.pdfIn PDF document text
- http://cardealer-space.com/js/upload/files/95320545977.pdfIn PDF document text
- http://otoozevran.com/resimler/files/ferubozoxetumodatus.pdfIn PDF document text
- http://travelport.pl/userfiles/file/84011628461.pdfIn PDF document text
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/kh2c8apbjkp7khracgngmfmle6/sewimikazuvo.pdfIn PDF document text
- http://formpart.com/upload/ckfinder/files/soxalagenuwijuzamubesak.pdfIn PDF document text
- https://ruiguoex.com/upfile/files/2021/09/13/12978473299.pdfIn PDF document text
- http://gpkoaee.ru/ckfinder/userfiles/files/40361408743.pdfIn PDF document text
- https://sukhayurveda.in/userfiles/file/xuxabusejuxopem.pdfIn PDF document text
- http://tajeer.co/userfiles/file/viduvorazumenejatem.pdfIn PDF document text
- http://eggtesting.com/admin/uploads/file/livokawerezusijiku.pdfIn PDF document text
- http://dkmmotor.com/files/userfiles/file/kajonibubaxurebu.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/lasegiridiziboxuxuwuvu.pdfIn PDF document text
- http://vhktn.at/images/content/files/81179426010.pdfIn PDF document text
- https://longislandinvestmentadvisors.com/nini/userfiles/file/jodoxutisobox.pdfIn PDF document text
- http://www.trisad.kz/ckfinder/userfiles/files/51015021608.pdfIn PDF document text
- http://finalbrand.cz/upload/file/puboramer.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b0c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB0C2	10856 bytes
SHA-256: `3ca47e5c84d80fc410ed2f3065542db83710f332a269f2b393e6bf579be24179`
`font_01_sfnt_off0000c99f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC99F	16864 bytes
SHA-256: `930acc29a487146c2916e87b9691a81eb4a28209863cb7c885cfe271a16e36e3`
`font_02_sfnt_off0000f4a1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF4A1	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

Open this report in the interactive analyzer, or submit your own file for analysis.