Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc02b2e525d3044…

MALICIOUS

PDF

72.9 KB Created: 2020-11-11 09:24:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: c4e4c70fe86f414b0820b28665d78254 SHA-1: 4d4cc076b3d91814e082cdff437793e16de32afa SHA-256: 1dc02b2e525d3044e6de65f05fc0a1d617e1ab591519640878baa5023cc15676
254 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://trafffi.ru/wb?keyword=que%20es%20apocrifa In PDF document text
    • https://cdn-cms.f-static.net/uploads/4381551/normal_5f8e8faf4f648.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388163/normal_5f8f541a4ba50.pdfIn PDF document text
    • https://jarapitoxedomel.weebly.com/uploads/1/3/1/4/131437170/b417ee487d7.pdfIn PDF document text
    • https://gekeforoka.weebly.com/uploads/1/3/1/4/131438206/fajumibigugofibe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369152/normal_5fa69b2d00e15.pdfIn PDF document text
    • https://tapukupe.weebly.com/uploads/1/3/4/7/134717462/kerisosiwemov.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387715/normal_5fa9c1687f544.pdfIn PDF document text
    • https://zuvubexusemeto.weebly.com/uploads/1/3/4/3/134373725/d4d646e.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/felasorarabipis/corporations_act_nsw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/12247897-c636-4dd2-a197-82a31ed9ed6f/kimofilojaweturawitez.pdfIn PDF document text
    • https://s3.amazonaws.com/wutisigila/lift_off_testing_shoulder.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off0000c7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7FE 5040 bytes
SHA-256: 64e192171ba77c1ccb66b06c68b4a03c5edbb8deb78c200cf20586eff748c15a
font_01_sfnt_off0000d931.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD931 11788 bytes
SHA-256: 9d27f66e27bbad8af435e69e5a52140328845f359d5124e5e9ffb4a89a45ca22
font_02_sfnt_off0000ffeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFFEB 16200 bytes
SHA-256: eae82e3891bdbb74a97706c4fc937a6cdfdce828a83410709736375698dc4948

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