Malicious PDF — malware analysis report

Static analysis result for SHA-256 0feb8a45d4f154fe…

MALICIOUS

PDF

46.7 KB Created: 2020-08-07 22:02:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d6ff7c890fede1ab772acb156a34d918 SHA-1: d0cca8a0d88faad48ea73d619db7356ef29c4207 SHA-256: 0feb8a45d4f154fec5fb9730011d6ff016fa10e48d4277840305151a4e3a43ee
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.com) that is associated with malicious activity and SEO-based phishing lures. The document body text and embedded links suggest a pretext of offering free study materials to entice downloads. While no scripts were explicitly extracted, the PDF structure and the presence of embedded URLs strongly indicate a malicious redirection attempt, likely to deliver a second-stage payload or phish for credentials.

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=arihant+upsc+books+pdf+free+download In PDF document text
    • http://files.minyiofficial.com/uploads/1/3/2/3/132303012/84d57d9e.pdfIn PDF document text
    • http://files.fcchartselle.com/uploads/1/3/1/4/131406092/fosezatu.pdfIn PDF document text
    • http://files.quantum5280.com/uploads/1/3/2/6/132681938/voleso-dabig-zonafumobeful.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/1/0436/4461/6864/files/44170915799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9065/6924/files/twitch_keyboard_shortcuts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2250/0518/files/36241821340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3547/6636/files/xuwamirixunosedukelepomi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2990/5058/files/33517818643.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/5042/9598/files/openssl_verify_self_signed_certificate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3996/2774/files/kusakanolotisudonelo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2738/1924/files/81800880335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6100/9818/files/certainty_equivalent_and_risk_premium_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9158/3391/files/osrs_desert_diary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7259/3832/files/52395611262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0115/9575/files/xorabanojedaniniv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5286/6463/files/add_bookmarks_online.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_off00006c53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C53 5528 bytes
SHA-256: addaf5344a06bd324177002b7af355c7e9627be4d46b3147f91d52c9d148c5b8
font_01_sfnt_off00007f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F25 15032 bytes
SHA-256: 129845f802aa7b23d969f362521b3d0f5f001d90a8f9311ba1b7fd49f2eb9122

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