Malicious PDF — malware analysis report

Static analysis result for SHA-256 095873ee9f0b74e7…

MALICIOUS

PDF

47.3 KB Created: 2020-08-05 01:59:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b28979547c68a31ae258d71c2aad1ef SHA-1: 48c6c3de088ed165725c2a3d6b8c2ef21d0508c6 SHA-256: 095873ee9f0b74e707c4d4568fea74cec756c2dc1f494c8716e1adc3ac5baf1c
202 Risk Score

Malware Insights

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

The PDF contains numerous links to redirector infrastructure, specifically `ttraff.com`, which is flagged as malicious. It also employs SEO tactics by linking to a large number of PDFs hosted on Shopify, likely to improve search engine ranking for terms like 'free download pdf file'. The ML classifier strongly indicates maliciousness, and the presence of a download button lure further supports a malicious intent to trick users into downloading further payloads.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=oxford+dictionary+english+to+gujarati+free+download+pdf+file In PDF document text
    • http://files.nsi4africa.com/uploads/1/3/1/4/131408245/ae29cb0e.pdfIn PDF document text
    • http://files.stmichaelsworkington.org/uploads/1/3/1/3/131381112/seket.pdfIn PDF document text
    • http://files.novapublishers.net/uploads/1/3/1/8/131857117/13033d9a.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/1/0436/4405/9806/files/annabac_maths_terminale_s.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3535/0424/files/kasupepi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/xalefofatetiwususutib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/10402065307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8298/files/80324339745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8236/6624/files/niroferunojapesonewekid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1901/6104/files/nosidajodilupulukoku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5480/9759/files/learn_autocad_basics_in_21_days_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4418/3970/files/zexivabajejerawev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2171/2034/files/me_state_abbreviation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8361/9738/files/attestation_de_stage_maroc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5604/7004/files/fizabefepuk.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_off00006c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C2C 5784 bytes
SHA-256: b94f62ee44fc8e3009aa1b8d76e9d37bffe525ad4b39f7561353746d3f681317
font_01_sfnt_off00007ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FF7 15348 bytes
SHA-256: 130dddb3b9b3f6673cee3954906a586c2e5920dcc156aefc0c0bd59e445d7a5b

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