Malicious PDF — malware analysis report

Static analysis result for SHA-256 c79f5b13000e2dcf…

MALICIOUS

PDF

42.1 KB Created: 2020-08-15 19:28:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eca02ec13dcab0a9915768d7b244b500 SHA-1: 793eec02c1173113d7cc07f9716d3d05c3484600 SHA-256: c79f5b13000e2dcf88ce787e2966a09f3e9418ee006dc4b26d02ca6513c3d2d7
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a link that redirects to a known malicious domain, ttraff.com. This is further supported by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for downloading a PDF. The PDF_SEO_LINK_FARM heuristic indicates a large number of links to other PDFs, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://ttraff.com/wb?keyword=bass%20guitar%20rhythm%20exercises%20pdf In PDF document text
    • http://files.jillwarnearts.com/uploads/1/3/1/8/131871535/89d07fc56d4c.pdfIn PDF document text
    • http://files.theeagleempire.net/uploads/1/3/0/8/130813757/1956671.pdfIn PDF document text
    • http://kugasulan.impulsivelust.com/uploads/1/3/0/8/130814328/tigelizamil-munix-widarebed.pdfIn PDF document text
    • http://files.mrfernandoferrer.com/uploads/1/3/0/8/130814636/3d82754e67.pdfIn PDF document text
    • http://sixafavi.goldengoosefilmsinc.com/uploads/1/3/0/7/130775918/kutixu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4760/7720/files/lodatenamalorejekob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6038/0327/files/71231444908.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3898/8709/files/panodewajozanizevuxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7898/4614/files/dijanajolevunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7140/6234/files/65340386178.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/49794796032.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2977/3982/files/387695792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4456/8220/files/biblia_de_estudio_del_diario_vivir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5047/5413/files/adenosina_farmacocinetica_y_farmacodinamia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/xutuvubaxiwuwujo.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

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64F4 5756 bytes
SHA-256: 4b6e86ded103b11606d7047f23822b8592b9fee787dd4d85080d0a4e4f324907
font_01_sfnt_off00007874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7874 10352 bytes
SHA-256: ad9a3a66ded6c4f763c1937107a9d4f6e6339cab20d5b0f8d91a67d6641c123b

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