Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f41b12047845e1d…

MALICIOUS

PDF

34.8 KB Created: 2020-08-14 14:14:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6fd8e08e90f7d4de97bea1800ecb69c0 SHA-1: 8e76efe252a733508592aa1df919c1eaeb521dbb SHA-256: 7f41b12047845e1d89e8522d5ac5dde7c384c3ea51d7a2bed9dd70456f3af4c0
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) identified as malicious. The document body, though partially corrupted, includes the text 'Consider the lilies vocal solo sheet music' and a URL that appears to be a lure. The presence of a large number of PDF links, including those to a redirector, suggests an attempt to distribute malicious content or phish users.

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=consider+the+lilies+vocal+solo+sheet+music In PDF document text
    • http://files.eliotchurch.org/uploads/1/3/1/4/131483002/wuwavevokidivizuvuvo.pdfIn PDF document text
    • http://files.wonkymonkey.nl/uploads/1/3/0/7/130776589/5922855.pdfIn PDF document text
    • http://files.taranakisummerschool.com/uploads/1/3/0/8/130874207/kamijagemepivo_kaximabe_zakiredepav.pdfIn PDF document text
    • http://files.amymengphotography.com/uploads/1/3/0/8/130815137/wenevodorigomitug.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/1/0433/5733/9800/files/62431280708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7599/3764/files/tubosukaguvijesajipifur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5063/1319/files/87360258810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3329/6028/files/can_kindle_read_books.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3802/3581/files/61001661169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0638/5573/files/kukobagaziti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4815/5806/files/compendio_catecismo_catolico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6503/1321/files/everything_i_have_never_told_you.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9582/6336/files/mathematical_analysis_2_canuto_tobacco.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/gefipepidedaduwatuzekelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1026/7035/files/58889046100.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3942/2626/files/censer_trial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4384/0412/files/18343838655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9276/2006/files/armadale_train_line.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0408/2851/files/52543995801.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004be2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4BE2 5144 bytes
SHA-256: fb72637f079b8e477d190b0abfbb6d8aa4e11113ca0e903ea5639b15cc521d87
font_01_sfnt_off00005d2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D2F 9580 bytes
SHA-256: 295694c0b4e73fd89461b61755341342d380fac1a398f937daa9416c99447471