Malicious PDF — malware analysis report

Static analysis result for SHA-256 a68d6ba319cfaae6…

MALICIOUS

PDF

42.8 KB Created: 2020-08-23 02:37:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d19f062058c706fe12d032ca9015ccb SHA-1: c0e0ba7691c48572090b7b6bbf2082423aa6bd83 SHA-256: a68d6ba319cfaae6bda266409a627a7f884902a305614043d0adcae394ba1532
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though heavily obfuscated, contains a URL that aligns with this finding. The PDF also exhibits characteristics of a PDF_SEO_LINK_FARM, suggesting a large number of outbound links, with the primary malicious link being ttraff.ru.

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=simple+household+budget+template+free In PDF document text
    • http://files.oscarpalaciosarchitects.com/uploads/1/3/1/4/131406435/wevigofuz.pdfIn PDF document text
    • http://files.carlinvillefire.com/uploads/1/3/1/1/131163752/a0e281ec7e01cd4.pdfIn PDF document text
    • http://muxotawo.j-acevedo.com/uploads/1/3/0/8/130814070/nunam_misuledulozona.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/1/0434/3165/7637/files/backtrack_5_r3_wifi_hacking_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6206/8127/files/hankook_tires_review_consumer_reports.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2222/8379/files/29562459582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7967/2735/files/zomuwefosufibowefebaxud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2742/1608/files/1210844451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4217/6150/files/auto_answering_machine_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/xubofakobogopazig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9690/6659/files/adrian_paenza_libros.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/8313/2056/files/how_to_darken_a.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_off00006817.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6817 5696 bytes
SHA-256: fdc149fa1c944febe8708d03987524d03ddad22e004f5793c095ae6ec00c6028
font_01_sfnt_off00007b43.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B43 10336 bytes
SHA-256: 2a563c98551491e0ec0e3f08eac650888f958cb7b3733fa3097bfc1e048b35df

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