Malicious PDF — malware analysis report

Static analysis result for SHA-256 08eb8963835dda3c…

MALICIOUS

PDF

37.6 KB Created: 2020-08-14 15:56:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: af0d926299aed47f55b90971c02b7518 SHA-1: e4e9989a7f43fe8fdfbe3888b723e166e6011e65 SHA-256: 08eb8963835dda3cba9f46a7f9f203770e721ddf2eaacb8e3ce54f5c53ee85e8
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru) that is flagged as malicious. The document body, though heavily obfuscated, also contains the malicious URL, suggesting an attempt to disguise its true nature. 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=baba+banda+singh+bahadur+movie+song In PDF document text
    • http://files.troonupdate.com/uploads/1/3/1/4/131452824/b5bc1d6226c8be6.pdfIn PDF document text
    • http://files.certifieddesign.net/uploads/1/3/1/3/131398242/detenizikazazu.pdfIn PDF document text
    • http://xotamif.sarahtorti.com/uploads/1/3/0/7/130775557/1406d832d5a.pdfIn PDF document text
    • http://files.richmondavenueanimalhospital.com/uploads/1/3/0/7/130776861/2158236.pdfIn PDF document text
    • http://files.paragliding-in-interlaken.com/uploads/1/3/0/7/130739651/rexomumubuvo_tofopize.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/1/0429/8034/3961/files/58767155638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0417/4233/files/16187443352.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8672/5799/files/geometric_and_technical_drawing.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0326/4667/files/kdk_ceiling_fan_catalogue.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1075/2663/files/87329766738.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8668/3037/files/suzuki_quadrunner_500_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/24221046066.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7560/0535/files/werexu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4818/8569/files/73057178448.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 7

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_off00004c59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C59 5456 bytes
SHA-256: f5cd1f9a90cb293d86c830cdf7aee2472a09ebd57252ae98f4f007eb6d06a444
font_01_sfnt_off00005eba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBA 13436 bytes
SHA-256: 281783a75c42b6158baf9c62a6e05eb6c301082740860a93b580919126f98c05

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