Malicious PDF — malware analysis report

Static analysis result for SHA-256 90fde391b7106906…

MALICIOUS

PDF

36.6 KB Created: 2020-08-08 11:35:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02b7d2843d084aea93d7aac639873a71 SHA-1: f31f149c8b727067a862caf0eb3dae111c953d4f SHA-256: 90fde391b71069063073a69977e8658f82ee9622c83bfdf9a313bc2359ce93a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file was flagged by multiple critical heuristics indicating malicious redirector links and a link farm. The embedded URLs, particularly the one pointing to 'ttraff.ru', are likely part of a phishing or malware distribution scheme. The ML classifier also strongly indicated maliciousness. No scripts were extracted, but the sheer volume of outbound links suggests an attempt to overwhelm or confuse security measures while directing users to potentially harmful content.

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=2.+35+storyboard+template+pdf In PDF document text
    • http://files.mrbaugher.com/uploads/1/3/1/4/131482823/31c754.pdfIn PDF document text
    • http://ligavi.pommaz.com.au/uploads/1/3/1/0/131071157/933ae161232c0e.pdfIn PDF document text
    • http://files.rosebudboxes.com/uploads/1/3/1/1/131164002/bd592c03950.pdfIn PDF document text
    • http://files.sweettoothfudge.com/uploads/1/3/1/0/131070861/2654894.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/1/0433/0687/7080/files/11286786524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/61463559988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2558/7610/files/77524663716.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/40814320730.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5355/5610/files/6121963987.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9173/8277/files/sanogele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1479/9012/files/19451078638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/alkuu_kitap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lafiku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3192/0794/files/assessment_center_ejemplos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5276/8151/files/48832414324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1269/1867/files/35591870114.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/19605825979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6616/2341/files/mods_para_minecraft_1._4._7.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 3

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_off00004f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F32 5784 bytes
SHA-256: 72f824a80fd414e0523707147fb78e27f2a0e08fc997d870df501a4cefd009fa
font_01_sfnt_off000062d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62D8 10492 bytes
SHA-256: 040d2476782d59875db86d233467997cbd6c458e22ff09a8a8ef9e08e22823ab

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