Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb14aa457176ee7b…

MALICIOUS

PDF

72.0 KB Created: 2021-02-11 03:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 94079b957a8a683bec760decabf8ac42 SHA-1: c9079b637ea9bc38c1674198fdbe9c5ba30e62f4 SHA-256: eb14aa457176ee7b6fe2dc7df08b43628df503801a59f7d4e8dc100d7f85c3f7
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://maypoin.ru/wb?keyword=palm%20reading%20guide%20relationship%20lines PDF link annotation
    • https://cdn.sqhk.co/tijovomiv/ji7F2hj/openttd_android_newgrf.pdfIn PDF document text
    • https://famepajovajegow.weebly.com/uploads/1/3/1/4/131438188/baa57cc2baf7cc7.pdfIn PDF document text
    • https://sonoxezepokamev.weebly.com/uploads/1/3/3/9/133999938/jasofotiw.pdfIn PDF document text
    • http://compte-cmbretagne.best/asus_en210_graphics_card_driver_freeqrudk.pdfIn PDF document text
    • https://cdn.sqhk.co/bevoletef/hdqijfe/63096178801.pdfIn PDF document text
    • https://nigelatadumave.weebly.com/uploads/1/3/4/6/134615228/f580d59dd7067.pdfIn PDF document text
    • http://geesecam.com/color_shift_3d_printero72uo.pdfIn PDF document text
    • https://soguleta.weebly.com/uploads/1/3/4/3/134305846/c21de13b5bda.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402247/normal_60197aa2d3b65.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416791/normal_6022243b64ed4.pdfIn PDF document text
    • https://bawidonawasaz.weebly.com/uploads/1/3/4/3/134354070/dugode.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/risalenefazozo/bezza_gxtra_manual_review.pdfIn PDF document text
    • https://s3.amazonaws.com/fajujiju/72709406985.pdfIn PDF document text
    • https://s3.amazonaws.com/rodiligarexo/deposition_errata_sheet_florida.pdfIn PDF document text
    • https://s3.amazonaws.com/lezopobigeza/inochi_no_kioku_piano_sheet_music.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_off0000de47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE47 5372 bytes
SHA-256: 38d22a8f4289e3f6a40749001ba27aa0d90fac3cd45f7cd7961a4839d53042c7
font_01_sfnt_off0000f061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF061 10252 bytes
SHA-256: 5865be009429f92c000118617ac8e0ebcbefaf4829bf0cbed2d3fed79b2b6e5a