Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e52a66993d9c513…

MALICIOUS

PDF

51.7 KB Created: 2020-08-09 06:39:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4453544efd0515acbc334d61d63a28f SHA-1: 8762a8792ce70acbc265423015dfc98809bf40b8 SHA-256: 6e52a66993d9c5136c5d1e9505936d594214e6799c403465820f9badb21e1db7
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to redirector infrastructure. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.ru/pify?keyword=ammaniti+come+dio+comanda+pdf as malicious. The document body, though heavily obfuscated, also contains this URL, suggesting it is the primary lure. The presence of embedded JavaScript, though not directly executable in this PDF context, indicates a potential for more complex malicious behavior if the user were to interact with the 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.ru/pify?keyword=ammaniti+come+dio+comanda+pdf In PDF document text
    • http://kekix.bridlewiseridingacademy.com/uploads/1/3/0/7/130739777/seresulivodu-midupiwikujo.pdfIn PDF document text
    • http://files.juliamontgomery.com/uploads/1/3/0/9/130969985/nimutegavidis.pdfIn PDF document text
    • http://files.anticsofsusieq.com/uploads/1/3/2/7/132740384/7981806.pdfIn PDF document text
    • http://nowubara.redcientificaescolar.com/uploads/1/3/1/3/131380600/lifug.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/1/0428/3462/4679/files/kuvedulibapajofimejopovos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8851/9080/files/6347342894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3220/7782/files/world_map_countries_and_continents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3815/4653/files/54339847870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0307/4984/files/backshift_of_tenses_bungen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5335/1066/files/xazalumilazimo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7555/9829/files/18239523102.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7328/9888/files/67604437433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8889/6415/files/besikobuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0105/1293/files/mukavebukovoxigugiw.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007d5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5D 4772 bytes
SHA-256: 9521c19ae981651565034b5ea78a35d63839b33e9178868d37986f52b5e0c33f
font_01_sfnt_off00008d6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6F 11384 bytes
SHA-256: c23bc7d8204f8a965ee5fbbeac1a733e02767a5e9d98bf88045d7e8d97912811
font_02_sfnt_off0000b21a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB21A 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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