Malicious PDF — malware analysis report

Static analysis result for SHA-256 0aba25ac507be9dc…

MALICIOUS

PDF

62.0 KB Created: 2020-08-06 17:28:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0566d3f997f32ab38e04fe8114c5d61 SHA-1: ca6d139f1bc4f70babe858947b386f7161054be7 SHA-256: 0aba25ac507be9dcfb2aa67f44582312cf298748b3f49e5792a5fd149ae1f6df
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are part of a link farm designed to manipulate search engine results for terms like 'free download'. The primary redirector URL, https://ttraff.com/pify?keyword=cricket+rules+pdf+book+free+download, is flagged as malicious and indicative of a phishing or malware distribution scheme. 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.com/pify?keyword=cricket+rules+pdf+book+free+download In PDF document text
    • http://files.dominiquedunstan.com/uploads/1/3/1/8/131857494/3172947.pdfIn PDF document text
    • http://sixip.ohsnapphotodesign.net/uploads/1/3/0/7/130738524/birosizined.pdfIn PDF document text
    • http://files.musictheatercareers.com/uploads/1/3/2/7/132710783/detir_patiwipobes.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/1/0438/7468/0987/files/jazurobemisobimak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26965864763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8516/6760/files/kadinifobodikusobokefodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0775/2866/files/computershare_transfer_wizard.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8937/files/togolekowosurebite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0917/7762/files/23408849180.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9606/3652/files/vuloxaburasanotebuvena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6984/8217/files/mapa_distritos_portugal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9983/0939/files/talorebogomezoxajisow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4762/3592/files/anexos_da_pele.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 4

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_off0000b692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB692 5352 bytes
SHA-256: 216f88e64278049ec512845e590062b75a538fcb68f46a8641940ca23122148c
font_01_sfnt_off0000c8e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8E4 10020 bytes
SHA-256: 5197cadd02817c527eb138dcf9e1067114b4377cc82cb3cb8d43e4e6b94c1b09

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