Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca08b93601dcbf7…

MALICIOUS

PDF

66.1 KB Created: 2021-02-24 20:03:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 03e0c623cf6a128be35033cf6780d602 SHA-1: 1a7e60a6b3cdb554b4648df700c48e4cb073cdd8 SHA-256: 2ca08b93601dcbf70fd8ea0f8b46c1564bbb522d25a0b9f03b16ebb39fea72e1
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://crophysi.ru/award?keyword=graco+solano+crib+manual In PDF document text
    • https://cdn.sqhk.co/nonuripot/4iihfih/retro_cruiser_bikes_australia.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484624/normal_5fdc5bb99608b.pdfIn PDF document text
    • https://cdn.sqhk.co/wazafepel/29Vxg0D/korikipoj.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495855/normal_5ff8ba6f6b0d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373985/normal_601032737245e.pdfIn PDF document text
    • https://cdn.sqhk.co/xokunafuse/xsje4kj/19347029459.pdfIn PDF document text
    • https://cdn.sqhk.co/puvubuzu/iiP9mji/african_gray_parrot_talking_to_alexa.pdfIn PDF document text
    • https://cdn.sqhk.co/jiwosowo/cgcidmP/nail_salon_near_me_prices.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495838/normal_6008012bc7a74.pdfIn PDF document text
    • https://cdn.sqhk.co/bodovukig/Fhfjchb/funny_hunting_wife_memes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385026/normal_5ffe8d57d0f67.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4421627/normal_5fe063c71fada.pdfIn PDF document text
    • https://cdn.sqhk.co/nebemina/iuhjggE/ted_bundy_netflix_series.pdfIn PDF document text
    • https://cdn.sqhk.co/fenazijeguk/iiMUwkX/color_sensor_for_blind.pdfIn PDF document text
    • http://itverys.space/kugopotudevobodevib054vy.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/ZMVUjdj/pefegobufamevovebojewope.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c704.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC704 5116 bytes
SHA-256: b2c0cf66c07eaaabe98f08359ece0668b99501e28145815db934fd430c174f6f
font_01_sfnt_off0000d853.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD853 10156 bytes
SHA-256: 344e5f7b55e6071d099d685176e33519e26d4bbf65da0984bd0c790a6125e07c