Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda892aed3ed8986…

MALICIOUS

PDF

49.8 KB Created: 2020-07-30 03:15:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dea4a943913d4aab901376c06774907a SHA-1: 283c98de4aec5ddb25ffaf00a3c1a404c1b7f561 SHA-256: fda892aed3ed898660256c7ca40ff6c17f88cc171f116a1732b07d53372d6334
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it features a PDF link farm hosted on Shopify, with numerous links to other PDFs. The ML classifier also flagged this PDF with high confidence. The embedded URLs suggest an attempt to lure users to external, potentially malicious, sites.

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=java+learning+online+pdf In PDF document text
    • http://files.jotsfromjill.com/uploads/1/3/2/6/132695881/3268428.pdfIn PDF document text
    • http://files.ashleybradleyart.com/uploads/1/3/0/7/130776049/kutafegaj_ruvun.pdfIn PDF document text
    • http://files.deahphotography.com/uploads/1/3/1/3/131380688/8164140.pdfIn PDF document text
    • http://files.cahootsads.com/uploads/1/3/1/0/131070689/nafanipamow.pdfIn PDF document text
    • http://files.myececlass-growth.com/uploads/1/3/2/8/132815737/2148130.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/1/0432/5294/0968/files/bozokabimowamiwepobusenir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9406/3770/files/79325091618.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3883/3816/files/6124842281.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7142/9016/files/xatejokax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7423/9129/files/6280205465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3123/2666/files/rolitezalojixogujuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7923/6760/files/miditojadanuwuzeluburo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/28834855156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/28101726073.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8610/1145/files/jipekofilozazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9033/7182/files/lowuxi.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_off000080b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B8 4788 bytes
SHA-256: 81339dd2bc7c84644dd14b1707ed1b4fe2da46fb0467f450a2077e2e47af2571
font_01_sfnt_off00009106.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9106 12788 bytes
SHA-256: 9e4e7599f4538365698907b8b17056a21eddc0dcd8af00ae4a2882034e0a5452

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