Malicious PDF — malware analysis report

Static analysis result for SHA-256 84733715c3a6df47…

MALICIOUS

PDF

415.6 KB Created: 2021-12-21 13:44:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-05
MD5: b0723f1c043b5acb57b37ba16a5327de SHA-1: bfb22ec95fcda41f9891eb72248821c5b064f99d SHA-256: 84733715c3a6df47b445be49dae93414a9dcc48fc9432befd5f8982a45c9f21b
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF file exhibits characteristics of a phishing scam, leveraging a 'classification report accuracy' lure to entice users. The document body is heavily stuffed with phone numbers, indicating a potential social engineering tactic for a travel-support scam. Multiple URLs point to compromised CMS uploads and SEO redirectors, suggesting an attempt to host or distribute malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4866

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Travel-support phone-number stuffing scam critical SE_TRAVEL_SUPPORT_PHONE_SCAM
    Document repeats phone numbers in airline/travel/refund/support language, often across multiple regional phrasings. This matches SEO/support-scam PDFs that impersonate airlines or travel brands and route users to attacker-controlled call centers rather than a normal travel document.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.
  • 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 http://volker-issmer.de/userfiles/file/59259818506.pdf In PDF document text
    • http://studiogeologicotrilobite.com/userfiles/files/77907002356.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619c3765bc901---27717583763.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1619df1374ed64---rilapugikowefeke.pdfIn PDF document text
    • http://xn----7sbabjlebzbdsbxti2bw3r.xn--p1ai/files/files/kugeguzawelepelevo.pdfIn PDF document text
    • http://libron.pl/fckupload/assets/file/gidiruwobel.pdfIn PDF document text
    • http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/161a98488eded0---redaritirakejapineku.pdfIn PDF document text
    • https://rjiminfra.com/wp-content/plugins/super-forms/uploads/php/files/aa58ae74ed925432c5a8a359caf06130/parizunofikelimovalixibag.pdfIn PDF document text
    • http://realestatespoznan.com/uploads/gusuvuvilafejipozafuti.pdfIn PDF document text
    • http://athaj2.specialty-match.com/upload/files/webidem.pdfIn PDF document text
    • https://e-fasteners.eu/media/file/wokofusu.pdfIn PDF document text
    • http://navigator-nsk.ru/userfiles/file/tibakikujopelo.pdfIn PDF document text
    • https://lucky-erotic-massage-bucharest.ro/ckfinder/userfiles/files/7208412089.pdfIn PDF document text
    • https://dbmotorbrokers.com/userfiles/file/fiwuduginala.pdfIn PDF document text
    • http://elitvorota.ru/f/file/94727373289.pdfIn PDF document text
    • https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/29f00ca49594eeb74c82c35f25e3be1a/85997468804.pdfIn PDF document text
    • http://creatinglifeoptions.com/userfiles/files/36765908904.pdfIn PDF document text
    • http://mueblesdepladur.es/1/userfiles/file/kibanilonotetuzi.pdfIn PDF document text
    • https://tvmreza.tv/ckfinder/userfiles/files/vejolozupinepebajaj.pdfIn PDF document text
    • http://eortak.com/img/fck_temp/file/dixovo.pdfIn PDF document text
    • https://zenithoverseas.com/assets/userfiles/files/45286962475.pdfIn PDF document text
    • https://starfoil-mail.nl/uploads/wysiwyg/bolapisanigitotosi.pdfIn PDF document text
    • http://dreesmann-foto.de/userfiles/file/vefagomizozej.pdfIn PDF document text
    • https://aathichudi.org/userfiles/file/xuduka.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/896FEnmJZlk/uplcv?utm_term=classification+report+accuracyPDF link annotation
    • 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 extracted file (font_00_sfnt_off00060c30.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00060c30.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00060c30.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60C30 10716 bytes
SHA-256: fd73f490a55ba4607e44ca30588423a4b7da98afa51926442a2480d27c24069f
font_01_sfnt_off000624fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x624FA 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off00063b99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B99 19480 bytes
SHA-256: e705bde73ea27b8d62ac6c092bd3c397e046755d58a72b665b003e36254a6852