Malicious PDF — malware analysis report

Static analysis result for SHA-256 93518f72266f2754…

MALICIOUS

PDF

42.7 KB Created: 2020-08-20 18:54:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 397b38c76bf00ef0f04344bfc32fe50a SHA-1: c44480f7806998258a1fccd0c82054c0e0417e15 SHA-256: 93518f72266f2754f3b7ed45018fe25cddb220785302d81746eae3fabc79b8ea
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file exhibits characteristics of a link farm, with numerous embedded URLs. One URL, 'https://ttraff.ru/pify?keyword=cover+boyce+avenue+we+can%2527+t+stop', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body contains garbled text but includes the same suspicious URL and several Shopify-hosted PDF links, suggesting a coordinated effort to distribute malicious content or phish users.

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=cover+boyce+avenue+we+can%2527+t+stop In PDF document text
    • http://files.manart1969.com/uploads/1/3/0/7/130740561/5135313.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/1/0432/7945/0272/files/poxum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3739/9960/files/zusuxakezexoxoja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6643/3429/files/74345740087.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6887/5157/files/kitupuzasufujimasor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4610/9345/files/bavejajozuvaniwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3287/7976/files/12491903904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6133/8531/files/dewozivugerevufuzuzupuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0273/9363/files/74308729592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/christmas_carols_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/jivibupesejazaminesitul.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn 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_off000046ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46EC 5228 bytes
SHA-256: 30298927a3af6c7d04e34fd23543ba0f214bf60fec122547b5689ae7b29bf746
font_01_sfnt_off000058dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58DC 12584 bytes
SHA-256: c29fd428467c4d9180acb0249f1aaa372ea2651310f6ab1f89957a5770d140e4
font_02_sfnt_off00007e76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E76 18776 bytes
SHA-256: 1df41416ece054d3cca32f135e48dc95f4d9c8a2bff4ba4edba1d14e21aabef6

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