Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a9e513c7ff4667c…

MALICIOUS

PDF

56.8 KB Created: 2020-08-02 20:18:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: baf76f41d1a4e2b7078343ad067608d3 SHA-1: ebc592ddae86679cd13247b46a8a7e1f80c928dc SHA-256: 1a9e513c7ff4667c275ac6fc4d29ccfce3d39f6387a6b8da8ff4ae02b7016ae5
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many pointing to Shopify domains. The ML classifier strongly flagged this PDF as malicious. The primary attack vector appears to be luring the user to a malicious site via the embedded link.

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=animation+in+pdf In PDF document text
    • http://files.darknessisfalling.com/uploads/1/3/2/6/132681690/7823383.pdfIn PDF document text
    • http://files.ghghuk.com/uploads/1/3/0/7/130739509/237f0c.pdfIn PDF document text
    • http://files.3ddd.me/uploads/1/3/1/4/131454791/5599763.pdfIn PDF document text
    • http://files.professorcarson.com/uploads/1/3/2/6/132695829/5005946.pdfIn PDF document text
    • http://files.457-glas.com/uploads/1/3/0/8/130815095/ddfca3d.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/1/0428/4953/4111/files/x_to_y_pathfinder.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6807/1836/files/39397340854.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0752/files/bowepotoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8609/4229/files/lumusow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6880/1695/files/dumorateroxovetujilijutus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8741/3923/files/95838388219.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1249/7312/files/30165488153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4945/0661/files/78282408560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9201/7305/files/94901275275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/jexikakipigezow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3506/5505/files/45584293379.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7042/2180/files/mobosut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8663/files/95681772459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/48993539191.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 8

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_off0000a35f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA35F 4868 bytes
SHA-256: e48576c10f4a491aa29bc8e5c0b1d93502d61552b48aa317a0ecbb4621512b9a
font_01_sfnt_off0000b3e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3E0 10120 bytes
SHA-256: ffefd795744e8412d01235639e06fcb82e15dddf339c15b95a218efe1b7f5894

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