Malicious PDF — malware analysis report

Static analysis result for SHA-256 67680e8395c25d5e…

MALICIOUS

PDF

53.9 KB Created: 2020-08-19 01:14:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76dff4a851aa78e8c584a5730f301b01 SHA-1: 05bcd20b5ec26491ba1f79c6c96ba90b2eaba3d4 SHA-256: 67680e8395c25d5ed6b8f7aea8ca70d428d3cabaa45a17eb559ef670cf843760
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary redirector URL is 'https://ttraff.ru/pify?keyword=annotation+processor+android', which is used in conjunction with SEO spam tactics to lure victims. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or spam campaign designed to redirect users to malicious or unwanted content.

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=annotation+processor+android In PDF document text
    • http://files.marialosee.com/uploads/1/3/2/8/132815148/gulebunil.pdfIn PDF document text
    • http://files.oktakemtrading.com/uploads/1/3/2/6/132696351/169d9e8a2a.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/1/0431/1446/3394/files/fadag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/xevusenukasolipejowarep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/29760547971.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20011772627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/latexoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9164/8929/files/rupenebuwefofowomejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5661/0969/files/film_anime_romance_sub_indo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1400/3610/files/1st_edition_monster_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2009/9488/files/vajumibumazokumem.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 3

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_off00008e62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E62 5024 bytes
SHA-256: 543807a55e778cf0541b7efc7eb89aa110e9873c9995b5c594c921cf26e2a595
font_01_sfnt_off00009f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F77 13600 bytes
SHA-256: 782aa040d786771c52f99db17f86eae9b12d43a24b40eda1a9a3e35af1d4f6df

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