Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cfb3277e230cb8e…

MALICIOUS

PDF

39.8 KB Created: 2020-08-24 06:55:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ee80d98887b4ba103f36c7d14aa79dd SHA-1: 815a29fcef9ff5e9efc99644e7da3fdf49aa4869 SHA-256: 5cfb3277e230cb8e65b2c954cad551552fe06f86c2351af6ae25944b30f5fc4f
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is part of an SEO link farm strategy. The document body, though heavily obfuscated, contains the same lure text and URLs found in the heuristics, indicating a phishing attempt disguised as a song download. The embedded URLs and the ML classifier strongly suggest malicious intent.

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=akhiyan+ne+ronaoy+mp4+song In PDF document text
    • http://files.trinitybillings.org/uploads/1/3/1/8/131856195/vewofarivilab-diravisisuj-mopubojurowub-fezozu.pdfIn PDF document text
    • http://legubixe.teamireland.ie/uploads/1/3/0/8/130814328/6a0c326484e590f.pdfIn PDF document text
    • http://files.rachaelbangertphotography.com/uploads/1/3/2/6/132681769/fajemavok.pdfIn PDF document text
    • http://files.bethanystahl.com/uploads/1/3/2/3/132303041/godebugo.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/1/0434/1569/9621/files/48883886378.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5263/7091/files/dofejejusuxibifare.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/pazov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0193/6033/files/39422602740.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4181/4693/files/67120493770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/vosarotatobirotun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2661/2378/files/28905781360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6045/2760/files/2074260976.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off000041e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x41E9 5444 bytes
SHA-256: 25dfdc525fd120228535d252f57a431f1cef9fa097435075973ae14f4c1ae0b4
font_01_sfnt_off0000544b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x544B 9584 bytes
SHA-256: a912b9a3725308e161780663ff51076e85aaaf692d18f2607c34b7496b59c2ce
font_02_sfnt_off00007534.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7534 18776 bytes
SHA-256: dabf0ccc451caf4864c9b22ca91318a92e8f625b469dd0561edf59b451c7a792

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