Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5e2015458047464…

MALICIOUS

PDF

54.0 KB Created: 2020-08-17 15:09:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d0cee326b4026fd7c51a8add51f16c2c SHA-1: 6aa5accda229f7abacc2e9dddf2bc954a8bd8885 SHA-256: d5e20154580474641c7be286fad18abf94b73915cb8b6ff0bcbdd0ea9a92029c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK. The primary malicious URL identified is https://ttraff.ru/pify?keyword=blighty+portable+dab+radio+manual, which is part of a link farm designed to redirect users. The document body, though heavily obfuscated, contains this same URL, indicating its intent to redirect 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=blighty+portable+dab+radio+manual In PDF document text
    • http://files.ajoyfulcreation1.com/uploads/1/3/0/9/130969695/toguwarutimus_pufezetizekutop.pdfIn PDF document text
    • http://wijod.livingnativity.org/uploads/1/3/0/7/130739204/ca3a681cb47e.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/1/0427/9622/0572/files/artificial_intelligence_books_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/72068432346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/53329538183.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/5006/files/26431_shoreview_avenue_euclid_oh.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2574/4547/files/39533482093.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/8486/7736/files/50871396235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0892/5600/files/alain_de_botton_essays_in_love_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6245/9544/files/6545599111.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5645/5067/files/peredin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8026/9462/files/59663248824.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 6

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000880f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880F 2984 bytes
SHA-256: 82c84ae5d629ebb1785ea8f4b17c1317561d86a260b8a93bb8c0017d3037a5f2
font_01_sfnt_off000092be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92BE 5488 bytes
SHA-256: 18a43d9d1b28191697cd0ec25d4c80feb6f8bac12ab81dc9118adec69dc2534f
font_02_sfnt_off0000a53c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA53C 11012 bytes
SHA-256: 95529eb2e26f697cf12842b8d6d6754b5d55b6ae9ffe3e718925114c754caa33

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