Malicious PDF — malware analysis report

Static analysis result for SHA-256 78130a9560108569…

MALICIOUS

PDF

62.2 KB Created: 2020-08-09 16:51:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c169e4e376bc1ae7ebb3468ad1dbe48b SHA-1: 553cf0197f00ba2165c919a776199f4a8004653d SHA-256: 78130a956010856930be49c0b57c94ce16227833b97077a8588db4767413d51d
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm designed to appear as a free download resource. The primary malicious URL, https://ttraff.cc/pify?keyword=adversus+mathematicos+pdf, is repeatedly referenced, suggesting it is the intended destination for user interaction. While no scripts were extracted, the PDF structure and embedded links strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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://ttraff.cc/pify?keyword=adversus+mathematicos+pdf In PDF document text
    • http://lopuwabuz.jennymills.co.uk/uploads/1/3/1/0/131070450/gawapalevuj-kotosusekojeka-siguwe.pdfIn PDF document text
    • http://files.dorabramden.com/uploads/1/3/1/3/131382141/3729828.pdfIn PDF document text
    • http://jawud.baytalmosul.com/uploads/1/3/0/8/130874359/9885738.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
    • https://cdn.shopify.com/s/files/1/0432/1358/6600/files/viziwunekivawovoxitepixan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9168/0666/files/greenhouse_gases_and_their_sources.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7727/1706/files/navy_pfa_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3901/2502/files/90937149485.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/lomume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/libuzab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6371/2671/files/juruxenafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4056/9494/files/xomafedajemop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0137/9996/files/97717150885.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 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_off00009633.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9633 5188 bytes
SHA-256: ca7da0fb7785f7444b0d44c51b1032bdd6998b8e68ae373f22b9c613bc0b70a6
font_01_sfnt_off0000a7d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA7D8 18468 bytes
SHA-256: 85b0f17661f9530e35d1a484d3cee8d7f76e75d3af12bcc6360387a1b952fe34
font_02_sfnt_off0000dddf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDDF 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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