Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 a8bb5edf79c953ce…

MALICIOUS

PDF / .VIR

436.7 KB Created: 2023-09-17 20:51:04 Authoring application: Karbon First seen: 2024-04-09
MD5: 2ae22fe9798222eb8ef9b6518489331e SHA-1: 63a1faa9c045877aad7166e56f5804f71e227369 SHA-256: a8bb5edf79c953ce6a0938dec9777fd0bf3ac2f4d12f66e66fb9448ccadf4d98
244 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8016

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://bob-the-snail-unblocked.tegogul.cfd/sugexuzeron.pdf In PDF document text
    • https://ib-business-management-exam-questions-an.nudidimi.cfd/dixaje.pdfIn PDF document text
    • https://study-guide-for-edith-hamilton-s-mytholo.kabibip.cfd/3721431.pdfIn PDF document text
    • https://adservice.google.com.ng/ddm/clk/425484003;227454619;f;;%3F//veninug.pupofopuba.cfd/suwora.pdfIn PDF document text
    • https://kodak-easyshare-m530-user-manual-pdf.pavuzis.cfd/81.pdfIn PDF document text
    • https://relatorio-cientifico-pronto-pdf.davidsaffir.com/1602694.pdfIn PDF document text
    • https://adservice.google.co.ao/ddm/clk/426382440;228185261;d;;%3F//terupujagi.nadizoxu.cfd/898.pdfIn PDF document text
    • https://adservice.google.com.bh/ddm/clk/424929466;226923624;r;;%3F//operating-system-concepts-international.waxapusap.cfd/54705.pdfIn PDF document text
    • https://scheda-massa-muscolare-4-giorni-pdf.xuxoxilosi.cfd/975.pdfIn PDF document text
    • https://gendered-lives-intersectional-perspectiv.dekelot.online/988.pdfIn PDF document text
    • https://larry-clark-tulsa-pdf.sazomenofa.sbs/xajugibitup.pdfIn PDF document text
    • https://adservice.google.com.bd/ddm/clk/426382440;228185261;d;;%3F//sixiwaxobu.lutujile.sbs/708.pdfIn PDF document text
    • https://fixeromatasu.fuwepokeje.cfd/divixipivowivofi.pdfIn PDF document text
    • https://adservice.google.com.bn/ddm/clk/295204063;122181591;w;;%3F//robert-a-baron-psychology-5th-edition-pd.fezazowed.sbs/140.pdfIn PDF document text
    • https://xunomul.nepafot.sbs/bazibisonijov.pdfIn PDF document text
    • https://adservice.google.com.na/ddm/clk/295204063;122181591;w;;%3F//veter.wavodesiji.sbs/537.pdfIn PDF document text
    • https://turologim.yenene.co.za/398293038132284679?dufafeviwirajomukulifilixojozemipakazukumowivedagokedafefaxodonugi=fulubijibasiwavimuzudigebofokofirubotobokuvimaliretovomolujibokurupujikizudezugopeviwokojonurufofadarotevafuwedaridimunorenijojifipafixesotebemonomodamafumagazubinabivisomovalamawerovodesafotimizawirafulowigixu&utm_kwd=height+measurement+app+apk&xakevokovuxurogifagabudedimiwojokurogirutigibedalodida=waxibibusutizosujudulorefixumakedulobemebutulagafoxevawogawedinezagusuruvobidaruxeboleponolimodoxabevebekafiwijiwuzitatokikasaxapakilubumijotasaliluIn PDF document text
    • https://turologim.yenene.co.za/398293038132284679?dufafeviwirajomukulifilixojozemipakazukumowivedagokedafefaxodonugi=fulubijibasiwavimuzudigebofokofirubotobokuvimaliretovomolujibokurupujikizudezugopeviwokojonurufofadarotevafuwedaridimunorenijojifipafixesotebemonomodamafumagazubinabivisomovalamawerovPDF link annotation
    • https://turologim.yenene.co.za/398293038132284679?dufafeviwirajomukulifilixojozemipakazukumowivedagokedafefaxodonugi=fulubijibasiwavimuzudigebofokofirubotobokuvimaliretovomolujibokurupujikizudezugopeviwokojonurufofadarotevafuwedaridimunorenijojifipafixesotebemonomodamafumagazubinabivisomovalamawerovodesafotimizawirafulowigixu&utm_kwd=height+measurement+app+apk&xakevokovuxurogifagabudedimiwojokurogirutigibedalodida=waxibibusutizosujudulorefixumakedulobemebutulagafoxevawogawedinezagusuruvobidaruxePDF link annotation
    • https://adservice.google.com.hk/ddm/clk/295204063;122181591;w;;%3F//taguwodegese.modasonar.sbs/nexilanagese.pdfIn PDF document text
    • https://adservice.google.dj/ddm/clk/424929466;226923624;r;;%3F//teac-a-3340s-owners-manual-pdf.jotitixiwu.online/beziwokutixojojoxa.pdfIn PDF document text
    • https://adservice.google.so/ddm/clk/445204615;249060672;c;;%3F//mary-l-boas-solution-manual-pdf.talkhockeytome.com/tifejeresagabetitef.pdfIn PDF document text
    • https://adservice.google.cm/ddm/clk/300948314;127869103;e;;%3F//american-income-life-horror-stories.bonuwuwi.cfd/rezafodajidufubife.pdfIn PDF document text
    • https://adservice.google.im/ddm/clk/300948314;127869103;e;;%3F//rasigop.imicconcepts.com/67.pdfIn PDF document text
    • https://adservice.google.ru/ddm/clk/310682673;138356009;g;;%3F//nanes.mutikodegi.sbs/mojutaf.pdfIn PDF document text
    • https://adservice.google.sr/ddm/clk/426382440;228185261;d;;%3F//gomumikobeka.wubabuj.cfd/2543872.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_off00069581.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00069581.bin)

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00069581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69581 17492 bytes
SHA-256: 45353373e4984ab4253c1b935bae09821b00ddf31328dc8bfa4a9e336ee42de3