Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bfbf330d5d8e186…

MALICIOUS

PDF

42.6 KB Created: 2020-08-21 20:47:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 72a5669827bd273861a7ec8718eb64e3 SHA-1: db4936d0c2e1f8cca82c5969f7a6bfa39b5a7d80 SHA-256: 5bfbf330d5d8e186cf8caa74d2f003626b8175de8209350893712699688c08ca
202 Risk Score

Malware Insights

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

The PDF contains a lure for a 'piano chords app' and embeds numerous links, many of which point to a redirector service. The primary redirector URL is https://ttraff.cc/pify?keyword=piano+chords+app, which leads to a link farm of other PDFs. This indicates a phishing or scam attempt designed to drive traffic to malicious or unwanted content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=piano+chords+app In PDF document text
    • http://wisajona.captainmorganssailcharters.com/uploads/1/3/1/4/131408280/pejewijamelesu_metef_vukubujemip_wosap.pdfIn PDF document text
    • http://files.sunsandandsilk.com/uploads/1/3/0/7/130739654/6186755.pdfIn PDF document text
    • http://nazikisi.1stb.com/uploads/1/3/1/8/131871674/2491243.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/1/0438/0521/2832/files/bazezukujifukejusaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3649/1431/files/paula_bruice_organic_chemistry.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4939/2030/files/84336644029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2273/7830/files/fovad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0445/2246/files/36860427105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/fuwemosuwizukuxitakalav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7784/3609/files/60089624429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6535/2097/files/18268126679.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/alto_sax_music_sheet_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7082/5382/files/8053238973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/nodurukir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8782/0968/files/cakephp_2._x_date_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/pusewelakekugodazorejipaw.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 2

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_off000067e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67E3 5128 bytes
SHA-256: 70cec98e9a1f8fc65269b6f64871309a33cf4fc4ce29cc7dc85d2bca69523346
font_01_sfnt_off00007943.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7943 10676 bytes
SHA-256: 0be57d90fc5cbbbdf9c95a4004b05a42c9a8723155815882501ea8ea30830ac4

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