Malicious PDF — malware analysis report

Static analysis result for SHA-256 a77c2bce0d1756e2…

MALICIOUS

PDF

76.6 KB Created: 2021-03-25 12:21:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0d74ad59f12a89d8d90c32bba43cf69d SHA-1: 2cfd3ecb5f64e08119982bb5c2dbe7323ce71804 SHA-256: a77c2bce0d1756e2040e96d7496081a2fcffd0fd415d615b57c1f026dc6b5254
98 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.
  • ClamAV scan did not complete info CLAMAV_SCAN_INCOMPLETE
    ClamAV scan on this file did not complete (ClamAV error (exit 2)); the verdict reflects only static heuristics. The result is not cached so a later submission will retry the scan.
  • 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://vilenefex.ru/strik?utm_term=sansa+clip+plus+battery
    • https://cdn-cms.f-static.net/uploads/4379374/normal_602150a12073a.pdf
    • https://static.s123-cdn-static.com/uploads/4482618/normal_5fcaf43c42f11.pdf
    • https://cdn-cms.f-static.net/uploads/4391314/normal_604eb3df3af1c.pdf
    • https://vidajubobulixi.weebly.com/uploads/1/3/4/6/134650234/zivafiziroz.pdf
    • https://sukodijam.weebly.com/uploads/1/3/4/5/134516983/e130dda0e6f37.pdf
    • https://cdn-cms.f-static.net/uploads/4408321/normal_6023e945af39c.pdf
    • https://riwisasivituw.weebly.com/uploads/1/3/1/0/131070703/juxiwel.pdf
    • https://cdn.sqhk.co/dowepigakaw/ehhnAif/racing_fever_mod_apk.pdf
    • https://cdn-cms.f-static.net/uploads/4427097/normal_5fd60c7238079.pdf
    • https://vogaxuruxav.weebly.com/uploads/1/3/4/3/134352923/rudivejomixovad.pdf
    • https://cdn.sqhk.co/tatidukigag/AheVhfY/zuwasamuriwedimurekiju.pdf
    • https://lugijuvumefabi.weebly.com/uploads/1/3/4/7/134761930/dalurafebawuwo.pdf
    • https://milobixokat.weebly.com/uploads/1/3/2/8/132815045/fojuxip.pdf
    • https://cdn.sqhk.co/galudubujuwa/fhgmgiV/automatic_reply_outlook_2016_missing.pdf
    • https://cdn.sqhk.co/kajutizikodu/dTigyha/69234619282.pdf
    • https://jifonoru.weebly.com/uploads/1/3/5/3/135316211/627534.pdf
    • https://static.s123-cdn-static.com/uploads/4473963/normal_6000f6bd90a1a.pdf
    • https://cdn.sqhk.co/kitujesijak/jjiDpij/luzigotof.pdf
    • https://05790d5e-93e9-4545-bcc4-99c37f081c18.filesusr.com/ugd/bff4d5_b4b2b3ffb8f04297994c548830f7adb9.pdf?index=true
    • https://f07eb630-23ff-4298-a1df-d7940f1ba2dc.filesusr.com/ugd/097a5b_26082aaf80124e2aab12d840ca97003d.pdf?index=true
    • https://e24ff460-1725-4b9d-a7de-f8438c38fea0.filesusr.com/ugd/366850_47ea6ac7581e4f718ab18e12906b7614.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

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