Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd67b302fb6b34a8…

MALICIOUS

PDF

83.0 KB Created: 2021-07-03 02:23:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: cddae5ceb49fc27da27e644c8e518699 SHA-1: 3599708cdb13584a232ee7bbf11d666f10579917 SHA-256: bd67b302fb6b34a80022e4e9d2e3297ba1754ed64200ecce874b2c2fb33aa360
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to external sites, many of which are hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery via these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://nomylo.ru/uplcv?utm_term=the+next+fall+traduction PDF link annotation
    • https://alihuata.com/userfiles/file/98169470362.pdfIn PDF document text
    • http://doo-san.com/userfiles/file/20210526134625.pdfIn PDF document text
    • https://psystat.net/candyticket/uploads/page_images/files/38852077734.pdfIn PDF document text
    • http://www.magicapro.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a4551de6ee7---72741955178.pdfIn PDF document text
    • http://www.1atlanticfunding.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ce11d714db---71998180329.pdfIn PDF document text
    • http://toicodonlyson.com/uploads/files/23593932828.pdfIn PDF document text
    • http://www.hussco-steel.com/husscofiles/files/29604899878.pdfIn PDF document text
    • http://teplolux72.ru/upload/file/64341110470.pdfIn PDF document text
    • http://eprdel.cz/userfiles/file/13386991647.pdfIn PDF document text
    • http://artmetinc.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076d69b6e0e9---30099347791.pdfIn PDF document text
    • https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1609407135715a---rarewosizopan.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/e07824dd2086b561aae2215703d02be8/kiwezi.pdfIn PDF document text
    • https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/2hbbtlscf1pqcqm4j915rkoeab/32748375767.pdfIn PDF document text
    • http://vistobrasil.net/uploads/file/gapijoxidogu.pdfIn PDF document text
    • http://www.fattyweng.com.sg/wp-content/plugins/formcraft/file-upload/server/content/files/1606c92071a68f---tirudewineponeneba.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/466uhk60cllsuan6mftio4lp50/dizisipedok.pdfIn PDF document text
    • https://locktactyuma.com/userfiles/file/zetavisakurozaviwusirex.pdfIn PDF document text
    • http://satakantaresort.com/user_img/files/polozolilevijojixeroxi.pdfIn PDF document text
    • http://diclenakliyat.com/userfiles/file/dujatetedibudijisu.pdfIn PDF document text
    • http://kiuruvedenlukio.fi/tiedostot/file/xajunasizofaw.pdfIn PDF document text
    • https://psychologgia.pl/Upload/file/56905776483.pdfIn PDF document text
    • https://ckmandarin.com/uploads/penoduxanijulafazabawite.pdfIn PDF document text
    • https://dipinkrishna.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f003a8f9c8---tegofugoxiwog.pdfIn PDF document text
    • https://playgametoday.ru/wp-content/plugins/super-forms/uploads/php/files/9f21f95b0e1e7d27f31dfc341c8b77a6/gomakilelodefexuwipe.pdfIn PDF document text
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/faee5f0706b577bbbfdebc03dafb8c31/mopudexeluk.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.

FilenameKindSourceSize
font_00_sfnt_off0000dd88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD88 10568 bytes
SHA-256: 526f5def3ab6c9a67de083d9dc2b04915e5fed22a2805940d5f0ce4c6efe03f6
font_01_sfnt_off0000f588.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF588 18864 bytes
SHA-256: 48a65ef85cbe3a8ff840b9f3a806ff4b76ee538690629ab4490d8bf4abe80845
font_02_sfnt_off000124ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x124EC 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1