Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a45e4f11c5da48e…

MALICIOUS

PDF

49.7 KB Created: 2020-08-12 14:50:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 40a98786acf6753d95d36c93d13f7876 SHA-1: 6af1ee8a053bde21665a96c92e0a6b470fe2d18e SHA-256: 0a45e4f11c5da48ee601b4933fdda3a8dda6a0f87a6c4da02546e782370c58e9
194 Risk Score

Malware Insights

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

The PDF contains numerous links, including one to a known malicious redirector at 'https://ttraff.ru/pify?keyword=ashokan+farewell+tab+pdf'. This suggests the document is part of a link farm or SEO poisoning campaign designed to drive traffic to malicious sites. 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=ashokan+farewell+tab+pdf In PDF document text
    • http://files.snaptoitstaging.com/uploads/1/3/0/7/130776712/6239320.pdfIn PDF document text
    • http://pibubino.riversidecoc.net/uploads/1/3/1/3/131380213/1984678.pdfIn PDF document text
    • http://files.rvlifefromtoptobottom.com/uploads/1/3/2/8/132814967/da478690a.pdfIn PDF document text
    • http://files.lightindarknessohr.org/uploads/1/3/0/7/130776031/bbf2df8.pdfIn PDF document text
    • http://melibu.drewhooverphotography.drewhoover.com/uploads/1/3/0/7/130740178/lotet.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/1/0433/5095/0041/files/68240796034.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6271/2734/files/applied_linguistics_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9815/files/nexevonotikurafanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/37903879595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7809/files/52392447307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4104/6171/files/27560730039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2329/2840/files/28708925376.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3861/2378/files/dekubulerewobog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5901/9927/files/elton_john_daniel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1959/0040/files/risk_board_game_rules_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3453/3275/files/jefunutufabozijunaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8312/7201/files/28487791929.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/3308052196.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_off000074ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74AE 5412 bytes
SHA-256: a86df4b8cfb18c9b434e085b68b572e4f5b4a9f7ad8f7d32c5a4e430c8b8e13f
font_01_sfnt_off00008716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8716 15644 bytes
SHA-256: f0084ca96ec4e8d7911537e48a7c7821e7ef00b8c193f124f477ba1d94ef2cc1

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