Malicious PDF — malware analysis report

Static analysis result for SHA-256 926fc67896e8bc46…

MALICIOUS

PDF

49.7 KB Created: 2020-08-07 08:39:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 59be96204be7a26933277f912aaf08b2 SHA-1: d5673180d5513a1b3da3a9464b68f76e2b97c7ae SHA-256: 926fc67896e8bc466999c3298ca48e1fb169c19db0fbfb368dad3f61589f2120
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded URLs, with a critical heuristic firing for a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=clasificacion+de+los+seres+vivos+primaria+pdf', which is the primary indicator of malicious intent. This suggests the document is designed 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.cc/pify?keyword=clasificacion+de+los+seres+vivos+primaria+pdf In PDF document text
    • http://files.hockeyatlas.net/uploads/1/3/0/9/130969939/5659749.pdfIn PDF document text
    • http://files.integratedmusculartherapy.com/uploads/1/3/2/8/132814166/ludukezopuka.pdfIn PDF document text
    • http://fubozoxu.intensemedia.com/uploads/1/3/1/3/131379732/2a813f6faed.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/1/0436/0326/3650/files/suxujozituzofonov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6654/files/8068653293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/clonedvd2_registration_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8248/files/adhar_card_download_by_aadhaar_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8834/6262/files/16363158630.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5237/files/kinukaziv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2207/4534/files/97868123115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/suworasa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9654/7230/files/8379172455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1458/6521/files/ruruj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2976/6039/files/28303366895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8541/files/82288575391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8660/9573/files/4810655755.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3638/5175/files/associer_plusieurs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8158/0200/files/mevivupi.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_off000083d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D7 5264 bytes
SHA-256: 33e6826d493c4a2adab0a0aec19a39df62e463889d20ac3b4e43f1fe5d8e5abb
font_01_sfnt_off000095af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95AF 10948 bytes
SHA-256: 658ff96fa04f391e10bd1094e37d9e2113e4f9f6eed06f1c32e991af6a3f3de0

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