Malicious PDF — malware analysis report

Static analysis result for SHA-256 65ee3665c47a9876…

MALICIOUS

PDF

123.7 KB Created: 2020-08-03 14:18:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9da1649545e83bad0283f924e293ea6d SHA-1: cf87aa8debda768b4461b638be8ed269de27ef7d SHA-256: 65ee3665c47a98765be3b493551d40761e5d4d6506498fe79083dd2b9ec2a1ed
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links, specifically pointing to 'ttraff.com'. This URL is used in an attempt to lure users under the guise of a free download, as suggested by the 'SEO_LINK_FARM' and 'SEO_UTM_REDIRECTOR_LINK' firings. The ML classifier also strongly indicated maliciousness.

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=antioxidant+oxidative+stress+pdf In PDF document text
    • http://kamigak.greensbororoadchurchofchrist.com/uploads/1/3/1/4/131453645/sujasitisimatane.pdfIn PDF document text
    • http://files.sass-and-crafts.com/uploads/1/3/0/7/130775384/xabowutegajojifik.pdfIn PDF document text
    • http://files.marinacoveconsulting.com/uploads/1/3/2/6/132680932/fewufojapofa.pdfIn PDF document text
    • http://files.sandislandtennis.com/uploads/1/3/1/4/131406507/535538.pdfIn PDF document text
    • http://files.tag2018.org/uploads/1/3/2/6/132681409/8070250.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/1/0432/8043/3302/files/51392608884.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2030/3011/files/the_witcher_3_walkthrough.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1335/7214/files/paditugelalaven.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7912/2587/files/ministry_of_sound_radios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/737776473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2891/4074/files/kaxediwadine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1455/9656/files/54736417539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6181/4172/files/jafavamakoravugeginutis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6591/5032/files/rajotipexiforarigasid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9433/4869/files/wovod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5148/2278/files/jilevageganusugotufi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8184/3356/files/gubotixidoliwijaxar.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000196bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x196BF 5120 bytes
SHA-256: 03e53afeea4f26969f0a418bf93be38a3961389e5b6af657a46f3f62277a3730
font_01_sfnt_off0001a844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A844 10424 bytes
SHA-256: c4250db9f9a856cd2de2ef0da0d44485de82473982ae7e7f337c4a95348737a8
font_02_sfnt_off0001cc0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CC0C 16128 bytes
SHA-256: 99550976dfc1031cc88c38f1ea926cf85cee9dde3bc6029adec2b4c0e217538f