Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1d2a65bcab1e868…

MALICIOUS

PDF

41.0 KB Created: 2020-08-21 18:01:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4f71a9bbf6fd333b9a95fccdb291f0eb SHA-1: 31ff89f617ac1d74e6a7aeb02f8c47fca6d8e9ee SHA-256: a1d2a65bcab1e868ac9566be716eb9451cbcb9a2986f66e8feaeabbd8752be4f
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to manipulate search engine results, directing users to a malicious redirector. The primary malicious URL is https://ttraff.ru/pify?keyword=powerpoint+free+templates+technology, which is likely used to distribute further malware or phishing content. The document body, though heavily obfuscated, contains references to the malicious URL and other PDF files hosted on Shopify, suggesting a content-luring or SEO poisoning tactic.

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=powerpoint+free+templates+technology In PDF document text
    • http://files.icookyoudinner.com/uploads/1/3/0/7/130775607/vigew-bujawedoforo.pdfIn PDF document text
    • http://files.mmedejong.com/uploads/1/3/2/7/132710756/ad16b7d.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/1/0435/8746/9471/files/22437273359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/muzoguganava.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/suikoden_2_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3583/6068/files/durebepefolisikiza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9212/3556/files/21157451877.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/32905673970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2752/1948/files/69657151137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6377/1293/files/melagomunive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7465/8197/files/87891103688.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 4

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_off00005609.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5609 5412 bytes
SHA-256: 25f85e93ee5a753f53647e103f73703fc7a73464a00ef4803475875f49263235
font_01_sfnt_off00006846.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6846 9652 bytes
SHA-256: 77b978dceeb3b8c6d471edb1a7efb17f5a77f2e780b0787a3a15d510a3836be3
font_02_sfnt_off00008946.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8946 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

Open this report in the interactive analyzer, or submit your own file for analysis.