Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f58c798b3b7c089…

MALICIOUS

PDF

67.1 KB Created: 2020-08-10 21:24:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 29c1b34f0fece5be2fb50bdbc262b635 SHA-1: d7b1b2f7a10dcc065628cf09a67b50c51e4d62b1 SHA-256: 9f58c798b3b7c0892d0c96c2fa71f375b455604a7a4472335f035f9fb077dce2
194 Risk Score

Malware Insights

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

The PDF contains a link farm pointing to various PDF files, with the primary link redirecting to malicious infrastructure at ttraff.com. This suggests a phishing or social engineering attack aiming to direct users to harmful content. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, limiting the analysis of direct payload execution.

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=carbohydrate+metabolic+disorders+pdf In PDF document text
    • http://files.shivashaktiloka.com/uploads/1/3/1/6/131636845/6898828.pdfIn PDF document text
    • http://files.acorncottagestudio.com/uploads/1/3/1/4/131413678/jufixekoke-bovisubizirojo.pdfIn PDF document text
    • http://fokido.djchel.com/uploads/1/3/1/6/131606490/negosa.pdfIn PDF document text
    • http://files.quiltingshanty.com/uploads/1/3/1/4/131483685/dujitumajavumuwuj.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/1/0431/4189/0210/files/ihya_ulumuddin_imam_ghazali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0402/5242/files/bethesda_system_for_reporting_cervical_cytology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4106/2040/files/54100561804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4684/6107/files/xawufedevesibew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54101174921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/61365524580.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/48078763518.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9606/4671/files/53548669430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5788/0994/files/civ_cardiologia_pediatrica.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2469/4942/files/kasegebibenidakowox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7737/6936/files/wolevuvitukavixanuxukuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7623/6950/files/difonapugujagukege.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 5

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_off0000c9c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C3 5540 bytes
SHA-256: 9676c5d6dd7e267079c8e4786c42fb5e57dfab6a22970531c71c7b7f42332166
font_01_sfnt_off0000dc7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC7A 10132 bytes
SHA-256: fcd4cd6af2fcf4d2ebeb332b3e51c09fe1e74f52329e54eff6b8483b2d531ffe

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