Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b4efbe2d1c98056…

MALICIOUS

PDF

37.5 KB Created: 2020-08-05 03:50:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e14249d1d469cfa505ab43cd6f688384 SHA-1: f314c7c80b65e69facf7757c2a4ca7d0499bc130 SHA-256: 0b4efbe2d1c9805624cb76b042c2429fab8b0016c67e164f13c33a45df232406
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links to an SEO redirector, which in turn points to other PDF files hosted on Shopify. The primary redirector URL, 'https://ttraff.com/pify?keyword=antrenmanlarla+matematik+2+pdf+%25C3%25A7%25C3%25B6z%25C3%25BCml%25C3%25BC', is flagged as malicious. This indicates a phishing or scam campaign designed to lure users into downloading potentially harmful files through a chain of redirects. No scripts were extracted, but the structure and embedded links strongly suggest a 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=antrenmanlarla+matematik+2+pdf+%25C3%25A7%25C3%25B6z%25C3%25BCml%25C3%25BC In PDF document text
    • http://files.hyesookchoi.com/uploads/1/3/2/7/132740482/bilemibalinekubo.pdfIn PDF document text
    • http://files.arrowtarian.com/uploads/1/3/2/7/132712127/5937400.pdfIn PDF document text
    • http://files.toomuchpun.com/uploads/1/3/1/4/131406049/vafivugufat-kebigifew-toriw.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/1/0434/1566/6849/files/jaxilaxabubulupesor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3492/7513/files/kalefatodoxapibadil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3915/2535/files/feburuxigumibaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0609/8597/files/ramuvanefonajokamozudu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8669/3023/files/prepper_library.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/negefulaxobarinaleki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6657/2443/files/34735079258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/babape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6395/files/alicization_exploding.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5037/5070/files/71061543465.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 3

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_off00005054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5054 5684 bytes
SHA-256: 828d38f3786d57ff8718fd924d42ca2b268353837a0cede59d4c6823ba062252
font_01_sfnt_off00006326.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6326 11716 bytes
SHA-256: cbe8f26edf58ddca2ca19ddc11093e8e974ceef8051dda535c065fbfc74a1611

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