Malicious PDF — malware analysis report

Static analysis result for SHA-256 e29ad2ce7190a2a9…

MALICIOUS

PDF

47.3 KB Created: 2020-10-16 10:07:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 0954db0666a33759484b237454bba5b0 SHA-1: 30d2556b8dc354e4d09476edc020023537db57f6 SHA-256: e29ad2ce7190a2a9054b26a05a7c905b85f77b16d298b18a046d91b06f3b925c
194 Risk Score

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://gettraff.ru/123?keyword=123+sms+d%2527amour+apk+download In PDF document text
    • https://segakimorepej.weebly.com/uploads/1/3/0/7/130738797/wodujugojijofubokif.pdfIn PDF document text
    • https://mojivimimujovo.weebly.com/uploads/1/3/0/8/130874437/3250b5961ed1.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/1/0500/1042/3456/files/7623300403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3710/0694/files/beren_ile_luthien.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0486/4671/7608/files/831537307.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0778/6657/files/pefomuxitekofaxokinev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5934/7618/files/66442753125.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5625/1555/files/disosegoxekexojagupanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0736/1703/files/gokunelivukofe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0848b8db-0d70-4a21-98a5-fd0ea555756c/26020964175.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3082c06c-777a-41e5-9f47-cfcb604e8585/98118330221.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9113108e-8065-44ac-b8f8-506eab0a75bc/katavusufemugimeguwiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/885c24c7-58c2-46db-b712-15e7419194f5/47480988076.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/511cbc4e-98ca-4f1e-b697-b43527e52bcf/98376856022.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab579a1-2f6d-4b84-86e5-1bcffdcd0621/satutuxuwuf.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c2d0c60-a302-4acc-aabd-53affb55eb93/xawufowewetinujup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0485/0329/2066/files/10145162540.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4511/7342/files/using_conditional_blocks_in_cognos_11.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/2272/7353/files/levatibovazip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/87202262742.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_off0000652a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x652A 5548 bytes
SHA-256: 461c5a9db9aceee30247aabf7758eb2bc4ebfaec6cf31a7a0cfc3894d27821e8
font_01_sfnt_off00007802.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7802 10148 bytes
SHA-256: acfc90dd6b1e1e3032d2bca387176678a9dabf50cb8d0dd12d47e63b80571277
font_02_sfnt_off00009ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AC5 16092 bytes
SHA-256: 9af6fc3bf9d751f70540aea0fa47faa159a3604992cda23d2adcda3ffc5346b2

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