Malicious PDF — malware analysis report

Static analysis result for SHA-256 aceee9c6ca885919…

MALICIOUS

PDF

44.0 KB Created: 2020-08-02 17:54:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 19afd037ccd0cb28d525695150ace4b4 SHA-1: 6419300436401bd82c89f16a1381ed1505e164ea SHA-256: aceee9c6ca8859194a7c193515d7b6442a8febbbf4f474da3ba0811c9197347b
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains embedded links that point to a known malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=animated+mouse+cursors', suggesting a lure to a malicious site. The ML classifier also strongly indicated maliciousness.

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.ru/pify?keyword=animated+mouse+cursors In PDF document text
    • http://files.arcir.org/uploads/1/3/1/4/131452878/xidowetotejezexavafe.pdfIn PDF document text
    • http://files.artofmichaelnguillen.com/uploads/1/3/1/8/131856917/8294233.pdfIn PDF document text
    • http://files.southamboyfirstaid.org/uploads/1/3/2/6/132695543/c773bc.pdfIn PDF document text
    • http://files.fancherandassociates.com/uploads/1/3/1/3/131380845/bezokuburi.pdfIn PDF document text
    • http://files.mravinger.com/uploads/1/3/1/4/131482937/60ed4c970e.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/1/0433/8722/4214/files/lowatujazibepovobox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3712/9895/files/zotifetapezepewoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1931/files/87680775848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9074/files/wopurilerifuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2529/3724/files/discord_waht_to_have_in_a_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8601/8712/files/z_transform_calculator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6042/8962/files/valorosorasu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9416/3109/files/jibaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5850/3573/files/38368481332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/kulepevawumigibit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1215/3766/files/36344341444.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007079.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7079 5044 bytes
SHA-256: ae1bd5f2bf3d6c2f535a0c9d54b7c5f14f2a4497886a4333ce0bff941beb9b2f
font_01_sfnt_off00008183.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8183 9732 bytes
SHA-256: 15b9dfe4951776387963d6dec24a20d5cee01487ce83b10b254300863af298a3

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