Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 fccd5b87f13d1eed…

MALICIOUS

PDF / .VIR

466.4 KB Created: 2023-12-26 22:08:53 Authoring application: Smallpdf Desktop First seen: 2024-05-07
MD5: 258411436d648986f92d31abc456fd77 SHA-1: ca07b07f5cbfe783f53eaf4757ab8a9646967464 SHA-256: fccd5b87f13d1eede27ddbf6415c1707cdcccf0f6aa0a38f7667a3f84c7032a2
266 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.1550

Heuristics 9

  • 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.
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • Clickable PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • PDF paints image(s) but contains no text operators medium PDF_IMAGE_ONLY_LURE
    PDF has 2 image XObject(s) and the content stream contains no text-emitting operators (BT/ET, Tj, TJ, ', ") in either raw bytes or decompressed streams — this is the screenshot-as-PDF pattern used to bypass text-based scanners and to deliver instructions purely through rendered pixels. It is informational unless paired with invisible links or risky URI context.
  • 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://xilevagujoxen.haviol.co.za/127039811?meguribebiwebefikevitalipubavexafel=lowipemevukirirudezopifunepixarizapazedupevetexazopebifixuzutujetexegegijifetudabidagabosuxolisejoxituvanaxesotuwilifineruvisewegosanodevinonujulamavakovigisefifesedilakawozelejamuratufufumexarazikodogolarosoga&utm_term=bostan+e+talismat+pdf&rapiwojolamutovexejajezozekajafumitapevuwepelulan=baliwarorizoxajezetugizakigawelerujudokusifozibikasixalanuxisezijufugevitenuxulimebidofutexevegonemogesegiluvejiromixitopaw PDF link annotation
    • https://adservice.google.com.fj/ddm/clk/445204615;249060672;c;;%3F//img1.wsimg.com/blobby/go/7bcb872a-a93c-498f-9bd2-7050a2717fdc/downloads/marine_biology_books_free_download.pdfIn PDF document text
    • https://the-great-reset-and-the-struggle-for-lib.vuvajul.cfd/3941784.pdfIn PDF document text
    • https://xilevagujoxen.haviol.co.za/127039811?meguribebiwebefikevitalipubavexafel=lowipemevukirirudezopifunepixarizapazedupevetexazopebifixuzutujetexegegijifetudabidagabosuxolisejoxituvanaxesotuwilifineruvisewegosanodevinonujulamavakovigisefifesedilakawozelejamuratufufumexarazikodogolarosoga&utm_termPDF link annotation
    • https://xilevagujoxen.haviol.co.za/127039811?meguribebiwebefikevitalipubavexafel=lowipemevukirirudezopifunepixarizapazedupevetexazopebifixuzutujetexegegijifetudabidagabosuxolisejoxituvanaxesotuwilifineruvisewegosanodevinonujulamavakovigisefifesedilakawozelejamuratufufumexarazikodogolarosoga&utm_term=bostan+e+talismat+pdf&rapiwojolamutovexejajezozekajafumitapevuwepelulan�liwarorizoxajezetugizakigawelerujudokusifozibikasixalanuxisezijufugevitenuxulimebidofutexevegonemogesegiluvejiromixitopawIn PDF document text
    • https://adservice.google.tg/ddm/clk/466651624;272226156;i;;%3F//img1.wsimg.com/blobby/go/9f1e3ab6-2312-418e-8bfe-93ca8a74605a/downloads/27926430660.pdfIn PDF document text
    • https://adservice.google.nr/ddm/clk/425484003;227454619;f;;%3F//img1.wsimg.com/blobby/go/255d2e39-0966-4ca3-9044-79b63e3ddc99/downloads/19692916668.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_off00071b8d.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00071b8d.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00071b8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71B8D 13792 bytes
SHA-256: f530f6af16f30dc004bcc6469b9d64e2e7225ca4e889340c3a2a132e87d76304