Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ed5abe71df5022c…

MALICIOUS

PDF

45.3 KB Created: 2020-08-18 17:39:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a85a6341141f36750676d64587aacc14 SHA-1: 64d99da1475722b348d7b318cab00eb7da347d6d SHA-256: 6ed5abe71df5022cf618050ae82c040d0c226a98ca678b89696cbdd2d66723bf
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a deceptive lure, "Cartoon network racing game", and embeds multiple links. One of these links, https://ttraff.cc/pify?keyword=cartoon+network+racing+game, is identified as a malicious redirector. The document also features a large number of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute further malicious content. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly indicate a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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=cartoon+network+racing+game
    • http://geriwofe.upperarlingtonmusicacademy.com/uploads/1/3/1/3/131384169/179369a48b8db.pdf
    • http://zawudu.spunwheel.com/uploads/1/3/2/7/132712376/satarotuwe-jowusavu-kewivob-wafef.pdf
    • http://files.conventionentertainmentorlando.com/uploads/1/3/1/1/131164542/8ffd45020ea.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/sumakomolarulotanagolin.pdf
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/english_phonology_and_phonetics.pdf
    • https://cdn.shopify.com/s/files/1/0432/5192/5155/files/33586726587.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdf
    • https://cdn.shopify.com/s/files/1/0436/3547/4590/files/zuzotorepusanezawizexoxa.pdf
    • https://cdn.shopify.com/s/files/1/0428/3521/4503/files/canape_recipe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mozesuseb.pdf
    • https://cdn.shopify.com/s/files/1/0431/3825/2954/files/perobusowonazi.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4453/files/tebesekeparotobuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/5395/6758/files/31512663738.pdf
    • https://cdn.shopify.com/s/files/1/0432/6513/0658/files/62258351041.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000755a.bin
be92519512f187014f0d0cce5f363b1558ac3ab938ca561deebdbe877ccc931f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x755A 4972 bytes
font_01_sfnt_off00008647.bin
a640da34dd48e00489af25e024446c684a1fc22a6ff478f5927431546e300407		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8647 10024 bytes

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