Malicious PDF — malware analysis report

Static analysis result for SHA-256 c272c38ed321bf0e…

MALICIOUS

PDF

43.1 KB Created: 2020-08-01 22:37:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f406391075bbdecd8f188cb7d4563e58 SHA-1: 07922e6473d07a490ea8e710f7ff31505f2fe5d5 SHA-256: c272c38ed321bf0e3013bfcdbad05828b552c9c787fe569e4a92b3c3f97ee981
194 Risk Score

Malware Insights

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

The PDF was flagged as malicious due to a critical heuristic identifying it as a redirector link farm. It contains numerous external links, with the primary malicious URL being https://ttraff.ru/pify?keyword=music+industry+contacts+pdf. The document body, though heavily obfuscated, contains this URL, suggesting the document's purpose is to lure users to this malicious redirector. The ML classifier also strongly indicated maliciousness.

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=music+industry+contacts+pdf In PDF document text
    • http://files.psychedeliclens.com/uploads/1/3/1/1/131163931/f60fca6a.pdfIn PDF document text
    • http://files.gloriamindock.com/uploads/1/3/2/6/132681949/dogojijaponevime.pdfIn PDF document text
    • http://files.mcbaronfootball.com/uploads/1/3/2/3/132302735/zewosozofosazi.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/1/0436/3590/0569/files/29336079174.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/nizavadiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3415/6967/files/88845337085.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4638/7362/files/56639919844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/62864456300.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5961/7690/files/dexifufugisekor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/ratamemimanasudol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7113/6154/files/97658188367.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1558/5448/files/92359475131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/furef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0428/7383/files/jojevoxutam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8333/2772/files/34800284661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/babipuwitaziroduvetelujev.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_off00006a9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A9C 5224 bytes
SHA-256: b746f876054085d3c4914a0b64e76f7014e03f3e4e17f21647a06e874db644b7
font_01_sfnt_off00007c86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C86 10196 bytes
SHA-256: 5a6a293d7210dc27d3f1a58f4e17a7128695b5d8d496271b2bbe97d90b2e6708

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