Malicious PDF — malware analysis report

Static analysis result for SHA-256 d73c29f98c0d90cb…

MALICIOUS

PDF

44.1 KB Created: 2020-09-17 13:25:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ef7a8a681fe0fc47a53f6b41c2deea1f SHA-1: 652bed746be7da7364d0443a7e762294353e81ae SHA-256: d73c29f98c0d90cb8cabd3cde48398dc022b4e515a8b655da6abd9f11a17c68f
194 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by an ML classifier and contains multiple embedded URLs. One URL, 'https://ttraff.me/pify?keyword=valguero+boss+fight+giga', is identified as a known malicious redirector. The document also exhibits characteristics of a PDF link farm, with numerous links pointing to external resources, many hosted on Shopify. The primary intent appears to be directing users to malicious or phishing content through these embedded links.

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.me/pify?keyword=valguero+boss+fight+giga In PDF document text
    • http://bizuvab.katasangkhae.com/uploads/1/3/1/8/131856005/xipajitekijiw.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/1/0480/5463/2612/files/boot_manager_android_windows.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0478/0825/0015/files/4782851671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5515/3303/files/vuzukidinenodexutina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/6129/7560/files/6074576038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6193/6282/files/lerebewaridosuxukurob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7016/7966/files/mopexoxoxekekowav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0164/2135/files/penguin_books_elementary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8185/0268/files/35048841271.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9037/8909/files/merge_dragons_dragon_gems_levels.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_off00006209.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6209 4912 bytes
SHA-256: dba468a072d81cf2dca252e1ded1944d93863efd57d17b07bc51922a7de9af05
font_01_sfnt_off000072d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D7 10256 bytes
SHA-256: 817bc32855f1c7b0ce5faca6aba9bf2a7c7da8e6ba212740d2fd7d28e03a2c69
font_02_sfnt_off000095f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95F6 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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