Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1f686f3171b3a11…

MALICIOUS

PDF

46.5 KB Created: 2020-09-18 03:56:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3d1daba0351872704efc6a42e8aa4b45 SHA-1: 3877d3f4c7decd9b8d4a7cc16d002214ff6e8cd8 SHA-256: a1f686f3171b3a113daa00148a466c501b8c5600f00f53be7287936aa31d98f8
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.me, which is likely used to deliver a secondary payload. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs, suggesting an attempt to manipulate search engine results or distribute malicious content. The primary malicious URL is https://ttraff.me/wix?keyword=horus+rising+pdf+online.

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.me/wix?keyword=horus+rising+pdf+online In PDF document text
    • http://nakavo.vallenduuk.pl/uploads/1/3/1/0/131070382/labolilasuk.pdfIn PDF document text
    • http://files.teamequistar.com/uploads/1/3/1/0/131070374/pewojuwofonimibi.pdfIn PDF document text
    • http://files.thejamesbaldwinschool.org/uploads/1/3/0/7/130776499/wedubodinaf_pafiwuno_xivijodo.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/1/0431/3009/3728/files/28623218612.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3836/6104/files/46365658509.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8045/8144/files/38623190423.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5378/3957/files/94171362477.pdfIn PDF document text
    • https://ed301051-34cd-4699-bca6-815ab5fbffeb.filesusr.com/ugd/921909_7854d81439774ccca0619d130ab761c0.pdf?index=trueIn PDF document text
    • https://eb5fff3c-7a64-45f5-93ee-75119e2f75b0.filesusr.com/ugd/e50c99_162369c002ea40be86d758e2d933c1c3.pdf?index=trueIn PDF document text
    • https://b447441e-346f-4a65-b80a-4e85c11f3eca.filesusr.com/ugd/e4ee87_67dd8728f0b348888fffedbc08855300.pdf?index=trueIn PDF document text
    • https://ed011504-2e65-409d-9c6e-7dc0994a3f0c.filesusr.com/ugd/3f80ec_f31587f6798d4e55ba4911d014bd9aa2.pdf?index=trueIn PDF document text
    • https://ff82db60-c3b0-483c-9878-ad2353400226.filesusr.com/ugd/5af86b_a172d9a572f44607ae7dd8d21aad7ee5.pdf?index=trueIn 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_off000077dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DC 4960 bytes
SHA-256: 09490e4b5582f74902b49cf9ffc612faadeb70ab841806777ed86487fed8bc2f
font_01_sfnt_off000088d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88D2 10408 bytes
SHA-256: 6a6b5891c35a54b24c5de773eca0bd8a81e7e70a9d4e77f510862c0a8c15e63a

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