Malicious PDF — malware analysis report

Static analysis result for SHA-256 df27b296362b2f0a…

MALICIOUS

PDF

58.8 KB Created: 2020-08-02 10:52:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4ef9a68a68737b1ea7153e6423b0cbf5 SHA-1: d262286b38a3a359731e72489ddf8044eb2facf0 SHA-256: df27b296362b2f0a5bb7346ee6d7a60f044068b75a0e4f1affda774721ede6a2
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or link farms. The document body text, though partially corrupted, contains references to car models and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious links. The primary malicious indicator is the link to 'ttraff.cc', a known malicious redirector.

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.cc/pify?keyword=1985+chevy+s10 In PDF document text
    • http://files.europeanmatchracetour.com/uploads/1/3/0/8/130874265/xugita-tamozavigaxuref.pdfIn PDF document text
    • http://files.burchfieldhomestead.com/uploads/1/3/1/3/131398250/8b0b4826b2763.pdfIn PDF document text
    • http://files.whomovedmychiaseeds.com/uploads/1/3/1/8/131871705/nibixezonod.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/1/0431/7963/8942/files/kufunetunamumesajib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/77823993742.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2007/4663/files/raxoradololesotagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/7752192625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8315/9969/files/wafuvuxinubutifazivozo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4759/8742/files/fijogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8360/3876/files/42087173718.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8375/0814/files/xibesuxaruxodonuzisopalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2610/1910/files/ruvebubusunevegiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4526/5312/files/29732296996.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8252/1512/files/pafaxapamajalokagololepe.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008823.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8823 5284 bytes
SHA-256: 0e45b7c74e67267bb73e38f69befc2801d4041a784761b4931cf5e2b50d9a27a
font_01_sfnt_off00009a3d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A3D 15276 bytes
SHA-256: eafe3eadbc7c9791e798e02f34b0a91ab0c4008d03660833ee253907fffb64bd
font_02_sfnt_off0000c9ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9EC 16060 bytes
SHA-256: c43c81af3addadc619f1b50b0eb79006c69e58cb90abf43f7a5fbd940e22698c

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