Malicious PDF — malware analysis report

Static analysis result for SHA-256 69d655b3ca806146…

MALICIOUS

PDF

45.9 KB Created: 2020-08-09 00:24:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 649784304effe3409e2230d48e6c0390 SHA-1: 7e47fb3338df3abc54b54ea727b3a1e804fe8566 SHA-256: 69d655b3ca8061467f390a115bf7d2cf78e6c797e133d92f14a6c5d33867ad93
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.ru) which is flagged as malicious. The document body and embedded links suggest a lure for free downloads, likely to distribute malware or phish for credentials. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-optimized PDF links further supports a malicious intent to drive traffic to potentially harmful 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=characteristics+of+c+language+pdf In PDF document text
    • http://files.alatebloomer.net/uploads/1/3/0/7/130775640/bapivel_tepadodawapa_rixuzisimuref.pdfIn PDF document text
    • http://files.parkerpaigeevents.com/uploads/1/3/1/3/131383386/xugofelotuwumilajes.pdfIn PDF document text
    • http://napuket.berwickcostumehire.com/uploads/1/3/1/4/131437886/nabifolu.pdfIn PDF document text
    • http://files.waltpadgett.com/uploads/1/3/0/7/130739601/5d0e4d19e9d.pdfIn PDF document text
    • http://lepib.pastorguy.org/uploads/1/3/0/9/130969723/4f1bced57573.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/1/0449/4472/0040/files/biblia_de_estudio_reina_valera_1960_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9715/1904/files/27920414185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9540/7269/files/dibexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8070/3399/files/99198995010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8127/7342/files/d_d_3._5_blank_character_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9432/7974/files/89006505315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/70958141857.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2672/6568/files/354_amendment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/african_liberation_theology.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_off00006765.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6765 5320 bytes
SHA-256: 6c7a7336ac108047c81dd31432832c55804f8b158f937c0d993eae7397f0593f
font_01_sfnt_off00007976.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7976 10208 bytes
SHA-256: d3eeb3957751a54b618cfc84c8c9313e0ac1cece697c566b9a249e4823378bf3
font_02_sfnt_off00009c51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9C51 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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