Malicious PDF — malware analysis report

Static analysis result for SHA-256 457db17671a87521…

MALICIOUS

PDF

41.3 KB Created: 2020-08-18 14:38:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 74050531b43251d0daf074d840fa6782 SHA-1: 2d62c9b118eb1e3f7ccc95f84cea7da7a1b6c139 SHA-256: 457db17671a87521c2f02375a8024126049f90aef978e3170c6a4a1257146971
194 Risk Score

Malware Insights

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

The PDF file contains a link farm designed to appear as sheet music, but it redirects to a malicious URL. The primary malicious link identified is https://ttraff.ru/pify?keyword=gaither+vocal+band+sheet+music. This technique is often used to distribute further malware or phishing content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=gaither+vocal+band+sheet+music In PDF document text
    • http://jafupagan.maryshousedc.org/uploads/1/3/0/7/130738890/mexobulelasasir.pdfIn PDF document text
    • http://fosafufib.ahlatemple.org/uploads/1/3/2/8/132814930/6503605.pdfIn PDF document text
    • http://xeponur.oxfordhypnotherapyclinic.co.uk/uploads/1/3/1/4/131437462/gukomonov_fovubararedufu_tutugaxazi.pdfIn PDF document text
    • http://files.carollongpottery.com/uploads/1/3/1/8/131858791/8851275.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/1/0434/7274/8710/files/60512421563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2821/0086/files/algebra_equations.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7589/5450/files/13437161028.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3532/8663/files/64546382434.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7112/7206/files/new_government_accounting_system_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7575/4389/files/foriwolusunopige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1120/1435/files/78761317120.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6823/5682/files/audi_q5_2018_mmi_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0332/2269/files/vba_excel_email.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0028/0726/files/wobuderi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2471/0807/files/london_theatre_guide_may_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0364/9953/files/spyder_clear_variables.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2804/5209/files/zumitunowap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7296/9109/files/bugaxonudagobatidub.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 4

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_off00006201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6201 5412 bytes
SHA-256: 18a4569c9657d9cd10ce10299a3f0769f282868efee40d16ef4856ee73447f28
font_01_sfnt_off00007439.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7439 10496 bytes
SHA-256: bacc88a2d3824f791e0d61102ad578a941701c66a6d72fdbcf9b0be504d7bb2c

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