PDF malware analysis — malicious · d3aa1a9204a82a28

MALICIOUS

PDF

86.7 KB Created: 2021-09-01 08:07:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24

MD5: 6bfc52b59233ebd468c95068cffbaacd SHA-1: cf933b3b8a0326fc893d0ddcd820c5a986139fc3 SHA-256: d3aa1a9204a82a285aea79c3a788483abadca0a9f78045acba126171911c301c

156 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised WordPress installations, suggesting a link farm designed to redirect users to malicious content. The presence of a URL with 'cheat engine download' in the UTM term indicates a lure to trick users into visiting potentially harmful sites.

Machine Learning

Nyx PDF Classifier malicious score 0.9977

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
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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.
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://smidgel.ru/uplcv?utm_term=ds3+cheat+engine+download PDF link annotation
- https://amenagementsoleil.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bcfac647868---voxinul.pdfIn PDF document text
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/16097aedc1fdc0---7731284462.pdfIn PDF document text
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/2liksa092sfslu19t76airq09o/94418429662.pdfIn PDF document text
- https://grupahatak.pl/admin/_fck_files/file/95279088518.pdfIn PDF document text
- http://dhleisure.com/ckupload/files/50502548531.pdfIn PDF document text
- https://yomadesign.com/userfiles/Proj_Name/files/7873961648.pdfIn PDF document text
- https://leciv.fr/uploads/FCK_files/file/novanokepinedelonabe.pdfIn PDF document text
- https://storage-in-motion.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609bd312773b9---64373532143.pdfIn PDF document text
- https://tungqibiotech.com/upfiles/editor/files/nujikuzewawuzubixuwanu.pdfIn PDF document text
- http://www.neoneofitou.com/ckfinder/userfiles/files/dogafiguri.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/16082a9362df8b---vobil.pdfIn PDF document text
- https://legacydockandmarine.com/wp-content/plugins/super-forms/uploads/php/files/64042d2a6dd37ff28bbeab2e777a24cc/xudixatakapamu.pdfIn PDF document text
- http://519pf.com/userfiles/files/vajavemijizumobu.pdfIn PDF document text
- http://nissanotogovap.vn/uploads/images/files/28366505407.pdfIn PDF document text
- https://minipowerpack.net/upload/files/4802118532.pdfIn PDF document text
- https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/68c083ab69513b359215b5475f0b6c5f/todumevoboxes.pdfIn PDF document text
- https://tlpnw.com/wp-content/plugins/super-forms/uploads/php/files/3a9a251c3283cb25adaf59eb1033114c/dufilorutuvemefaj.pdfIn PDF document text
- http://adanateknikservis.web.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160966a62542c2---vapevurekuvuke.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/wifusorowix.pdfIn PDF document text
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a839ee2f8b5---tonakatikukarutebixesovi.pdfIn PDF document text
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1607862d6021d0---zejurotomiliranir.pdfIn PDF document text
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160bbe750cfb75---bokapujivizuvugopibu.pdfIn PDF document text
- http://zechnerbau.at/images/content/files/riwodobatigiguwemop.pdfIn PDF document text
- http://ineke-ott.nl/keramiek-beelden-imagesfile/9531343264.pdfIn PDF document text
- http://matsonconstruction.net/userfiles/file/revilulovibetafix.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_off0000ebc9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEBC9	10808 bytes
SHA-256: `7eccdcf56c40e2675c453fbb2603074f5dd4f78ffa6c7fa070f91d0ef9ce97da`
`font_01_sfnt_off0001048e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1048E	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_02_sfnt_off00011ca0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11CA0	18288 bytes
SHA-256: `0c26e5750a5f4e7e5d8865a71e0e48be470b35881793221c882862591ada95b1`

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