Malicious PDF — malware analysis report

Static analysis result for SHA-256 af92465ca9d8da37…

MALICIOUS

PDF

74.2 KB Created: 2021-02-27 15:16:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 319509b0578f3a625208823449f6d388 SHA-1: 1697423b340794fb61e949b3c364ac87b3f8e666 SHA-256: af92465ca9d8da37fe90fb66e9a0707259c1c2035f97d745f4d25b9edb474b2a
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a high number of embedded URLs pointing to various domains, indicating a link farm or phishing lure. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and numerous external links are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://resalured.ru/wix?keyword=christopher+kokoras+insurance+agency+somerville+ma PDF link annotation
    • http://weareanonymous.org/ripesozunowmguf0.pdfIn PDF document text
    • http://dafagaketa.sportsontheweb.net/motorola_hs850_bluetooth_headset_charger.pdfIn PDF document text
    • https://cdn.sqhk.co/pavujakorige/jgia9ja/racechrono_gps_lap_timer.pdfIn PDF document text
    • https://cdn.sqhk.co/taduzotul/tFBiaMY/39574230076.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408319/normal_5ff96dada8554.pdfIn PDF document text
    • http://rosutob.getenjoyment.net/niduso.pdfIn PDF document text
    • http://rexevivejegox.scienceontheweb.net/11335728943.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/jb9ja93/68624885990.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383795/normal_6037a4b83329b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378623/normal_5fea0f691d5cc.pdfIn PDF document text
    • http://fafesixokegigi.getenjoyment.net/sovexodevuvavujobume.pdfIn PDF document text
    • http://copytoshka.ru/62690387623ot1ig.pdfIn PDF document text
    • https://cdn.sqhk.co/nudofarus/Vc6Dfhb/the_equalizer_2_cast_nba_player.pdfIn PDF document text
    • https://cdn.sqhk.co/bapisolel/Iuhhugh/jakajipaw.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/a8h1ENH/57273906402.pdfIn PDF document text
    • https://cdn.sqhk.co/muluxodipoto/ibifj8V/pufojoxumapajaka.pdfIn PDF document text
    • https://cdn.sqhk.co/raxasumo/chcgfQZ/gafikoraraporesajuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d587.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD587 5476 bytes
SHA-256: 64991708fc6c5c3fe38cf740bc8fefee683f5c219a2ac4a0a6febfff3b1d3cd4
font_01_sfnt_off0000e809.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE809 10380 bytes
SHA-256: 43a5b1b255e89f60159e96d62fb2e019bd0bf32bfa905e7e1e2921cb259f8321
font_02_sfnt_off00010b71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B71 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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