Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec69bdf33f92db36…

MALICIOUS

PDF

67.5 KB Created: 2021-03-03 07:34:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: fa4f53881904e93d9e59307d0c415fb5 SHA-1: c1959218832b68752f0d1cb5c174ae2ebdf9b050 SHA-256: ec69bdf33f92db367cf8d1d71802a5a4ea7cd21c30a6fe08b0431786a4a95041
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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.
  • 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://fokemale.ru/award?keyword=walmart+albert+pike+hot+springs+ar PDF link annotation
    • http://xexapitanegis.getenjoyment.net/97251542850.pdfIn PDF document text
    • http://fajamad.mypressonline.com/15071104191.pdfIn PDF document text
    • https://vovinusowoxojik.weebly.com/uploads/1/3/4/3/134349833/79231.pdfIn PDF document text
    • https://peniseguj.weebly.com/uploads/1/3/2/7/132712198/8191920.pdfIn PDF document text
    • https://kutebebi.weebly.com/uploads/1/3/4/5/134528954/f1d905681e.pdfIn PDF document text
    • http://miromawetibikew.mywebcommunity.org/43894264326.pdfIn PDF document text
    • https://finubakexa.weebly.com/uploads/1/3/1/3/131383318/18c74a1b0f8f9.pdfIn PDF document text
    • https://lafadulow.weebly.com/uploads/1/3/4/5/134591129/bedba4184ba75f.pdfIn PDF document text
    • https://kosofisipituje.weebly.com/uploads/1/3/5/3/135329454/lezedikuledipugege.pdfIn PDF document text
    • https://sezebotari.weebly.com/uploads/1/3/1/6/131636698/lanevojuzula_gesovas.pdfIn PDF document text
    • https://mimudokax.weebly.com/uploads/1/3/4/7/134742140/gabixikexakozi-tizuj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/dabatisew/calendario_mundial_2018_horario_de_portugal.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/26779874815.pdfIn PDF document text
    • https://s3.amazonaws.com/livivuvuwugeb/two_adaptive_features_of_polar_bear.pdfIn PDF document text
    • http://rivenoke.onlinewebshop.net/lumokerozofedujodu.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/vicky_editing_whatsapp_status_video.pdfIn PDF document text
    • http://pusapovewazigu.onlinewebshop.net/how_to_deal_with_ethical_dilemmas.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://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ca56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA56 5452 bytes
SHA-256: 1e042ff744f817a26b9778a0ab98be6ce9817bdfbacd5830b814d0ea5ae86e87
font_01_sfnt_off0000dcbe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCBE 10700 bytes
SHA-256: efa8954cb00a295014b9b9405cab2f6cbb50ad2470c7e776d7d78ab7fa824cee

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