Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 ad21a119332f5805…

MALICIOUS

PDF / .VIR

403.8 KB Created: 2023-02-24 21:07:10 Authoring application: SWFTools First seen: 2024-04-14
MD5: dec0d60f9d893299c692c2cc92d2d724 SHA-1: 3d9501e6eff02d694f409b6661e882a7bdccd9b7 SHA-256: ad21a119332f580581e9adbbfb536b8522b1d0e5f1a5897c023e32ba7c25e1cc
361 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8977

Heuristics 10

  • 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.
  • Viral-video clickbait PDF links to suspicious host critical SE_VIRAL_VIDEO_CLICKBAIT_LINK
    Document uses viral/leaked-video lure text and links to a suspicious disposable-looking web host. This is a clickbait/traffic-scam carrier shape rather than a benign PDF link.
  • 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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://minuet-in-g-bach-piano-pdf.rotewulomi.sbs/budadanavevorosi.pdf In PDF document text
    • https://virazovesu.mowapag.sbs/4043255.pdfIn PDF document text
    • https://adservice.google.com.bh/ddm/clk/295204063;122181591;w;;%3F//color-by-number-photosynthesis-worksheet.rupesutit.cfd/babilolabulan.pdfIn PDF document text
    • https://tongue-ranger-district-and-forest-superv.tripleb-ent.com/430.pdfIn PDF document text
    • https://are-pilgrim-s-blazin-wings-discontinued.lotilaro.cfd/repegop.pdfIn PDF document text
    • https://fox-and-mcdonald-s-introduction-to-fluid.gamesawoli.online/40.pdfIn PDF document text
    • https://adservice.google.com.kh/ddm/clk/425484003;227454619;f;;%3F//as-a-man-think-it-pdf.lubu2go.de/wulomogiwaviget.pdfIn PDF document text
    • https://from-toxic-classmate-to-girlfriend-goals.musabaxar.online/xetazegobizaviko.pdfIn PDF document text
    • https://bergey-s-manual-of-systematic-bacteriolo.lixejuzaj.cfd/bapugunajifeme.pdfIn PDF document text
    • https://adservice.google.com.sl/ddm/clk/426382440;228185261;d;;%3F//sony-xperia-m2-user-manual-pdf.zewawek.cfd/7258523.pdfIn PDF document text
    • https://alex-rider-livres.zen-in-duesseldorf.de/latamufizikes.pdfIn PDF document text
    • https://sejda-pdf-editor.komopujut.sbs/458.pdfIn PDF document text
    • https://basics-of-us-healthcare-system-3rd-editi.dujovipi.cfd/pire.pdfIn PDF document text
    • https://blue-is-the-warmest-color-pdf.sazomisux.cfd/452.pdfIn PDF document text
    • https://vexakovij.fezazowed.sbs/kotukoba.pdfIn PDF document text
    • https://bamapo.sopumoxomu.cfd/867.pdfIn PDF document text
    • https://cortes-de-pelo-para-hombre-tlacuache.riwugex.online/gowasogokogimog.pdfIn PDF document text
    • https://adservice.google.com.co/ddm/clk/424929466;226923624;r;;%3F//section-3-molecular-clocks-study-guide-a.xepisig.cfd/1038270.pdfIn PDF document text
    • https://holt-science-and-technology.xepisig.cfd/reritaxaporobabekibo.pdfIn PDF document text
    • https://latenusonox.yenene.co.za/470915233182411612?xirinazutuxefimeripejafimopuserugosowuzelejenobujunowepamatubagulowanomuluxirosuvutuso=lupowopunugipukunavavimugirunawudovanezunabipirigujasanofoliwuxuxunekirologuzotiselozexexonewogiwifukazunetusikimukovajarigidagixofarozozujifubuzoxenumevipesesivunabuxomazobawenomoraxeduworufatafugiwuduvusi&keyword=root+any+android+6.0+without+pc&remobibiranogufilefiwurifelefavivatukojapegizitibizobikizifaguxapomeripironuvotafujorulerupo=sabeguzarinuruxenuzajebedapeledapawufewagipakigofavexanopimokudunomupozugofovovogigivokovijiwofexuwogejexafivisejazefogapirelatefaxebunonofIn PDF document text
    • https://adservice.google.co.zm/ddm/clk/408533097;208818505;l;;%3F//wohnungsk-ndigung-vorlage-pdf.bisojakaz.cfd/viwanusodiwogumut.pdfIn PDF document text
    • https://latenusonox.yenene.co.za/470915233182411612?xirinazutuxefimeripejafimopuserugosowuzelejenobujunowepamatubagulowanomuluxirosuvutuso=lupowopunugipukunavavimugirunawudovanezunabipirigujasanofoliwuxuxunekirologuzotiselozexexonewogiwifukazunetusikimukovajarigidagixofarozozujifubuzoxenumevipesesivPDF link annotation
    • https://latenusonox.yenene.co.za/470915233182411612?xirinazutuxefimeripejafimopuserugosowuzelejenobujunowepamatubagulowanomuluxirosuvutuso=lupowopunugipukunavavimugirunawudovanezunabipirigujasanofoliwuxuxunekirologuzotiselozexexonewogiwifukazunetusikimukovajarigidagixofarozozujifubuzoxenumevipesesivunabuxomazobawenomoraxeduworufatafugiwuduvusi&keyword=root+any+android+6.0+without+pc&remobibiranogufilefiwurifelefavivatukojapegizitibizobikizifaguxapomeripironuvotafujorulerupo=sabeguzarinuruxenuzajPDF link annotation
    • https://adservice.google.ki/ddm/clk/445204615;249060672;c;;%3F//natural-resources-and-environmental-econ.religare.info/pefulomadudukokex.pdfIn PDF document text
    • https://adservice.google.ch/ddm/clk/300948314;127869103;e;;%3F//san-jose-california-to-new-york.natawali.cfd/66.pdfIn PDF document text
    • https://adservice.google.bt/ddm/clk/426382440;228185261;d;;%3F//xowiwexugixi.nomunonuwe.cfd/dasuzabobur.pdfIn PDF document text
    • https://adservice.google.kg/ddm/clk/408405163;208572896;n;;%3F//xenoleleno.dekelot.online/3949758.pdfIn PDF document text
    • https://adservice.google.gl/ddm/clk/445204615;249060672;c;;%3F//pefobikebid.tv-mfd.de/perugulutitifokuto.pdfIn PDF document text
    • https://adservice.google.az/ddm/clk/448794861;252804937;a;;%3F//zakimejip.banojoza.online/pamiwudowaga.pdfIn PDF document text
    • https://adservice.google.cf/ddm/clk/426382440;228185261;d;;%3F//principles-of-corporate-finance-10th-edi.pacesafetycare.de/975.pdfIn PDF document text
    • https://adservice.google.pt/ddm/clk/448794861;252804937;a;;%3F//objective-first-certificate-pdf.demaxataj.cfd/33.pdfIn PDF document text
    • https://adservice.google.mk/ddm/clk/466651624;272226156;i;;%3F//zegusakube.xitugej.cfd/kuligutebetukasub.pdfIn PDF document text
    • https://adservice.google.mg/ddm/clk/478229754;284365575;c;;%3F//o-caos-que-nos-incendeia-pdf.xuluzofonu.cfd/8753440.pdfIn PDF document text
    • https://adservice.google.com.ua/ddm/clk/408405163;208572896;n;;%3F//choices-interviewing-and-counselling-ski.arizona-travel.de/2629091.pdfIn PDF document text
    • https://adservice.google.com.au/ddm/clk/408405163;208572896;n;;%3F//nagojujoze.fisakel.cfd/346713.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_off0005fa55.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005fa55.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005fa55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FA55 10792 bytes
SHA-256: f5c30fb31233f01ce3dfc364c15cf7aa266a6d9f2847a0d7b860eb4d391f3ce7
font_01_sfnt_off0006131c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6131C 17044 bytes
SHA-256: 99e3311c214ac3e37cdce86581de3da92d945a5651049a7862023a0471641d58