Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 2d7cb178ef7fdebb…

MALICIOUS

PDF / .VIR

217.6 KB Created: 2023-10-26 06:18:26 Authoring application: OpenOffice Draw First seen: 2024-09-20
MD5: cde5604a9a69f2a584e4ab67837c5ec2 SHA-1: 53c16fd0598c80f3cf21ee892182608565a4f10f SHA-256: 2d7cb178ef7fdebb2fbaa1057c13e5b6935cb220bc2398f52362ff433944e004
224 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8573

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
  • 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.
  • 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://wilesuliliw.yenene.co.za/590825371769659747?gazidopenafofafewokiguxibabapesapewavesawarimafawoxemadeferakilanuvakum=xukitutoporirirojejujonibezunukabegalazesizenalawojazifezufisivaxizamimarosabiwuwegowazesubuvixepunapuditejenexizenisumazerawefirugitenutivurukewarawagolokefokavisilonigelatopaneripodopuvuxixovawobuwas&keyword=world+cup+matches+pdf+download&rijutavinugobudelaletinapawimefuzelopilarokixexusawexajetefanujud=bitodoxipotebijovuvekewojumegufagawexotenabozanaguvejozulufijifexetajapurexegapijovajetunagemuxegujuxoguvamijidupagigewesaf In PDF document text
    • https://wilesuliliw.yenene.co.za/590825371769659747?gazidopenafofafewokiguxibabapesapewavesawarimafawoxemadeferakilanuvakum=xukitutoporirirojejujonibezunukabegalazesizenalawojazifezufisivaxizamimarosabiwuwegowazesubuvixepunapuditejenexizenisumazerawefirugitenutivurukewarawagolokefokavisilonigelatopaPDF link annotation
    • https://wilesuliliw.yenene.co.za/590825371769659747?gazidopenafofafewokiguxibabapesapewavesawarimafawoxemadeferakilanuvakum=xukitutoporirirojejujonibezunukabegalazesizenalawojazifezufisivaxizamimarosabiwuwegowazesubuvixepunapuditejenexizenisumazerawefirugitenutivurukewarawagolokefokavisilonigelatopaneripodopuvuxixovawobuwas&keyword=world+cup+matches+pdf+download&rijutavinugobudelaletinapawimefuzelopilarokixexusawexajetefanujud=bitodoxipotebijovuvekewojumegufagawexotenabozanaguvejozulufijifexetajPDF link annotation
    • https://uploads-ssl.webflow.com/64ee1001a26579e40ce3e43f/653e18b511e1dd3cc2ac4d6b_lumebuvexo.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64f8518818f85bb7388306ea/653e1aa0e9279c3904385b53_7852720168.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/08902b5b-6315-4229-bce5-c481248cb0f3/downloads/88164647939.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64edddecde957779618e7655/653e195cc4c19f51eb26271b_jibedogatutafoxuvuvenisiv.pdfIn PDF document text
    • https://img1.wsimg.com/blobby/go/08902b5b-6315-4229-bce5-c481248cb0f3/downloads/1808850911.pdfIn PDF document text
    • https://uploads-ssl.webflow.com/64f842c4bbb31cf426580991/653e1a38c0189b84bf6a1b92_82864228673.pdfIn PDF document text
    • https://irp.cdn-website.com/d3e692b5/files/uploaded/wojonekigili.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_off00031379.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00031379.bin)

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00031379.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31379 16080 bytes
SHA-256: 20f24ebf46307c2b53e4c691a4fafbf4f26b0937a27ba904b1d5ccd54bac26a3
font_01_sfnt_off00033d11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33D11 11368 bytes
SHA-256: 11550a4297293987dd96cc8ad3c1edcec31f29b8bf09ce5c3d635c8c537c2fea