Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bc31703e691e96b…

MALICIOUS

PDF

1.62 MB Created: 2022-05-09 04:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-20
MD5: c6232ab39f40abe34b8f99b1a40d3a4e SHA-1: ece66c8b2349a2d6275b473737b4920fade91c0b SHA-256: 3bc31703e691e96b2fdeaae14006365716694f2e079f59ce59826034d692e4ff
174 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0476

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://wirut.co.za/YmrXLWy8?keyword=public%20speaking%20and%20civic%20engagement%204th%20edition%20pdf%20download%20pc%20games PDF link annotation
    • https://meiontravel.com/UploadFiles/file/20220227035158183.pdfIn PDF document text
    • http://wu-pao.com/upfiles/editor/files/kovososofudosu.pdfIn PDF document text
    • https://nugibunexediga.weebly.com/uploads/1/3/0/7/130740514/gabomaxekigedaloxara.pdfIn PDF document text
    • http://transbur.ru/admin/ckfinder/userfiles/files/68906770470.pdfIn PDF document text
    • http://bukvoznaika.ru/ckfinder/userfiles/files/9155806719.pdfIn PDF document text
    • http://joeun-it.com/userData/board/file/11521205246.pdfIn PDF document text
    • https://pubobuwolupa.weebly.com/uploads/1/4/1/4/141404359/9348152.pdfIn PDF document text
    • https://vuderuxedus.weebly.com/uploads/1/3/4/6/134692959/figojidasivuvekol.pdfIn PDF document text
    • http://indyskischool.com/ckfinder/userfiles/files/gukexolufofewok.pdfIn PDF document text
    • https://fudixiboronis.weebly.com/uploads/1/3/4/3/134322082/df516.pdfIn PDF document text
    • http://okwmd.com/upload/fckeditor/file/nuzilarafazowukizejuw.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/44212997193.pdfIn PDF document text
    • https://pokebelutoxina.weebly.com/uploads/1/4/1/2/141258053/803dd3.pdfIn PDF document text
    • https://tpk-m.ru/files/file/kixilidafebudol.pdfIn PDF document text
    • https://escritacontabilidade.net/fotos/news/file/13149389487.pdfIn PDF document text
    • http://www.dreamstoreonline.es/ckfinder/userfiles/files/fejisajopidabipuvibu.pdfIn PDF document text
    • https://nirorozarijax.weebly.com/uploads/1/3/4/3/134342495/e8617.pdfIn PDF document text
    • https://derechosenred.org/aym_image/files/74241958179.pdfIn PDF document text
    • https://kotazadan.weebly.com/uploads/1/3/4/3/134349323/xaruwev.pdfIn PDF document text
    • https://rekazisiw.weebly.com/uploads/1/3/0/8/130874265/1681630.pdfIn PDF document text
    • https://sakata-mokuzai.com/db/item/uploads/files/84076775566.pdfIn PDF document text
    • https://rudetotupolukoj.weebly.com/uploads/1/3/2/6/132681245/varofasunulawotufo.pdfIn PDF document text
    • https://jogosoti.weebly.com/uploads/1/3/1/4/131453036/34c91377d39.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 extracted file (font_00_sfnt_off00196798.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00196798.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00196798.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x196798 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00197fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x197FB6 20508 bytes
SHA-256: 58e8960cd64d9c101a1ba0e60826fefd5aa974a62cee5e30fa2193692595580f
font_02_sfnt_off0019b5ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19B5EC 11532 bytes
SHA-256: 5ae17b60bb4d25a6945041f3f0b91f619ca82ce4ce1f924fd24f15f9ceb8d64d