Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d848adfbbb765d4…

MALICIOUS

PDF

39.2 KB Created: 2020-08-16 00:53:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 553f9a6e7c2102fa215469c4b3c7736e SHA-1: 49d0d3815b7eae030029c96f98fc5f3711fc92cd SHA-256: 6d848adfbbb765d4ca27dcaaea9215541cb6bb07dac778701be91f39ea00463d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to SEO-optimized PDF files, and one prominent link to a redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=businessman+movie+songs+mp4', suggesting a lure for potentially malicious content. The ML classifier and heuristic firings strongly indicate malicious intent, likely related to phishing or malware distribution via link farms.

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=businessman+movie+songs+mp4 In PDF document text
    • http://files.constructoraliverpool.com/uploads/1/3/0/9/130968984/7ca9d0.pdfIn PDF document text
    • http://files.cartravelsafety.com/uploads/1/3/0/8/130873795/9632531.pdfIn PDF document text
    • http://files.studiofred.net/uploads/1/3/2/6/132695832/podixabus_tejibunedomap_tesivev_luzibufir.pdfIn PDF document text
    • http://files.sweetstopcandy.com/uploads/1/3/2/3/132303337/8706270.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/1/0434/3264/0679/files/63301894594.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5117/9416/files/17943584172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0771/2155/files/vadotesidexebirenora.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5850/files/xobevaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/siburuvuwafenudaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/91985884372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2883/0625/files/47855582290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/ampicilina_injetavel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1802/6142/files/71783122914.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/72645751706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7311/7096/files/sql_server_tutorial_for_experienced.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/politik_identitas_pemilu_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5985/3977/files/13739262611.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_off00005b86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B86 5208 bytes
SHA-256: 85d58e52c40fa141977bc82e1c1e2c00f9fbe415fe8b6b90ea91ffb3fe77cc9e
font_01_sfnt_off00006d39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D39 10120 bytes
SHA-256: 8ed078527141c19c210a3a062b9c106b5908b11a5d9f20676282137fc8172ce1

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