Malicious PDF — malware analysis report

Static analysis result for SHA-256 9dd9f9cb94a098f9…

MALICIOUS

PDF

198.4 KB Created: 2020-08-07 16:31:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 498b462cba1b82925f7b10d0b6b92ad7 SHA-1: 6f349d0d453423785606d5e23991882b89b57532 SHA-256: 9dd9f9cb94a098f943bdf906ec2f6fc683cfc1134d81298420ad7d9e63d9eb7a
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=spring+boot+latest+documentation+pdf'. This URL is likely used to redirect the user to a malicious site for phishing or malware download. The document body also contains the same URL, reinforcing its malicious intent. The presence of a visual download button lure further supports a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.cc/pify?keyword=spring+boot+latest+documentation+pdf In PDF document text
    • http://files.alamodecollections.com/uploads/1/3/1/3/131379256/3718762.pdfIn PDF document text
    • http://files.stamfordstrings.co.uk/uploads/1/3/2/6/132682868/wotibuno.pdfIn PDF document text
    • http://files.aftonhistoricalsociety.org/uploads/1/3/1/4/131406046/84e6a8e83bdc2.pdfIn PDF document text
    • http://dowesexaf.kierstenmodglinauthor.com/uploads/1/3/0/7/130739024/bavil.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/1/0431/5050/8181/files/tiwapodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2373/5720/files/55798282361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/87261311379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1908/3677/files/vukinozapesozotumupupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/91417596169.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8325/9285/files/dux_britanniarum_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8059/7152/files/muwato.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3809/7051/files/graphical_user_interface_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/13506848998.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 7

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_off0002c690.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C690 5716 bytes
SHA-256: 14abd56f505054d3dcc6e6e0b6cb24d9cb7db8db5e45d4ba2734b0fb84ae4e3d
font_01_sfnt_off0002d9ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9EA 15980 bytes
SHA-256: 32233a3beedd42f6fce2c4693d5b884464b8bc8b396fbbbd75232bddc7edf360

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