Malicious PDF — malware analysis report

Static analysis result for SHA-256 9443f368d58e8e9e…

MALICIOUS

PDF

66.1 KB Created: 2020-08-08 04:43:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: eabebaf32c5b5d1c115a51f64ee5e926 SHA-1: b2229aeacb78172d89d8baf99840831f72a40c83 SHA-256: 9443f368d58e8e9eb9a5a85a2d7c8b739ee36723e678a96eb35baf03c50d984a
202 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains this URL and other links, suggesting a lure to external content. The presence of a mass external PDF link farm further indicates a malicious intent to distribute links. The low-signal heuristic for a download button reinforces the idea of a deceptive user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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=adobe+photoshop+cs5+tutorial+pdf In PDF document text
    • http://files.cedarscapesllc.com/uploads/1/3/1/0/131070861/walale.pdfIn PDF document text
    • http://files.weenglishpersonalproject.com/uploads/1/3/1/3/131382673/926816.pdfIn PDF document text
    • http://files.pinkmousehouse.com/uploads/1/3/1/4/131455543/zojopi-vezizowet-melege-temagipumi.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/1/0433/5131/0488/files/mathematical_physics_by_gupta_kumar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4210/6518/files/actualit_socio_conomique_en_afrique_francophone.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3510/7233/files/xamonimawebojuke.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0589/5075/files/52991617285.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2225/3208/files/clasificacion_de_los_animales_segun_su_reproduccion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2388/3688/files/sample_occupational_therapy_soap_note.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/17721531589.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4825/6156/files/73692861934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9070/6599/files/statistical_language_learning.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 3

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_off0000c56e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC56E 5496 bytes
SHA-256: f7abcd3d10b527623f33c1886cd07e46f1951f80eddd164c36dd2f09aa7be412
font_01_sfnt_off0000d81c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81C 10420 bytes
SHA-256: 7540ac3849b01ff5e13d262bc21de7a456332c1f3f7fb104bd6e6400e8e6b0b0

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