Malicious PDF — malware analysis report

Static analysis result for SHA-256 5479a05bd2abd02e…

MALICIOUS

PDF

44.5 KB Created: 2020-08-06 17:32:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 11550d36b38f4e03c337804638f16e23 SHA-1: 49ba6bf22e0521325fdd91fcdaa3df2c4cf14475 SHA-256: 5479a05bd2abd02eb2f11eda205dcf2eb19aeffc1dfe0740ac14bcb1a6bbc482
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to a malicious redirector at `https://ttraff.cc/pify?keyword=tutorial+of+microsoft+excel+pdf`. This URL is flagged as malicious and is likely intended to deliver a secondary payload or phish for credentials. The document body, though heavily obfuscated, contains references to the malicious URL and benign-looking PDF filenames, suggesting a social engineering lure.

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=tutorial+of+microsoft+excel+pdf In PDF document text
    • http://files.missoulaclimate.org/uploads/1/3/1/4/131437513/8214898.pdfIn PDF document text
    • http://files.mrdbc.com.au/uploads/1/3/1/8/131872032/876094.pdfIn PDF document text
    • http://files.reidmachinery.co.uk/uploads/1/3/1/4/131438490/zikivemoji.pdfIn PDF document text
    • http://files.angelascreativecatering.com/uploads/1/3/0/9/130969166/zexokupemilofoz.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/1/0430/5597/2501/files/26173494305.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6031/3763/files/41880361665.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3886/6593/files/difference_between_measurement_assessment_and_evaluation_in_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5560/4121/files/savezigebadurivolara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4193/7818/files/25483145452.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7466/7164/files/67013551224.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3698/0886/files/75935505070.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0659/0106/files/41025898436.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3933/2251/files/quicktime_6_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/pidomizejuvufonasixup.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_off0000722a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x722A 5320 bytes
SHA-256: f11bcd91285f430a18ab92a9ce90a119d60044ff322b1cd179980dcb51a34616
font_01_sfnt_off0000842d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x842D 9744 bytes
SHA-256: be2609a22b071d518169e369058db422ac50968cb17cf49b7041f74c5b5596d7

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