Malicious PDF — malware analysis report

Static analysis result for SHA-256 64af3d141a78a319…

MALICIOUS

PDF

36.0 KB Created: 2020-08-18 22:44:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4682ec4a7d4ce5c546002d8696587aa8 SHA-1: c4aa230c64389109a056fbe39eb027b76e484205 SHA-256: 64af3d141a78a31925d17e247556e5717b044ddd94909ccd02d61ed5158976b0
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to what appears to be an SEO link farm designed to obscure malicious redirectors. The primary malicious URL identified is https://ttraff.ru/pify?keyword=only+love+jordan+smith+sheet+music, which is flagged as a malicious redirector. The document body, though heavily obfuscated, contains references to sheet music and the malicious URL, suggesting a lure for phishing or malware delivery. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=only+love+jordan+smith+sheet+music In PDF document text
    • http://files.simulacrasays.com/uploads/1/3/2/6/132681985/6da506b55062.pdfIn PDF document text
    • http://files.nextstepnursery.com/uploads/1/3/0/7/130740530/3655515.pdfIn PDF document text
    • http://sejuwus.owossobands.com/uploads/1/3/0/9/130969341/1647379.pdfIn PDF document text
    • http://files.inhomesalestrainer.com/uploads/1/3/0/7/130775137/66e84a.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/1/0432/8180/9558/files/mebobifaxag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6680/files/bell_s_palsy_rehabilitation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4998/3905/files/fowosovelukoxed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7482/2043/files/business_model_generation_wiley.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5689/0013/files/wuzefuzivowubusurixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xuxovozukirofavekejob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2564/5211/files/37523118968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6385/9610/files/22944166133.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 8

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_off00004f2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F2F 5444 bytes
SHA-256: 8749e168d7c2357645944444028746aae506a3f020a5bab4703d9255d9848f9e
font_01_sfnt_off0000619a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x619A 9916 bytes
SHA-256: 68502959b84e14328245ecafea7c5de58228d4c01cc868eb7329b0a03d532cc0

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