Malicious PDF — malware analysis report

Static analysis result for SHA-256 2948fda4167ae5a4…

MALICIOUS

PDF

69.7 KB Created: 2021-01-25 18:11:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 891bf8edee37c3e06fa255d4b11363fd SHA-1: 9002d436ea34acade276be53ebf81daf9d98ee91 SHA-256: 2948fda4167ae5a4b2629ff8a38a1ec8479f297e532415e5d89cef15414d9859
136 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
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://leonvi.ru/wb?keyword=sandwich%20factory%20austintown%20oh PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4410703/normal_5ff3a115451d8.pdfIn PDF document text
    • https://cdn.sqhk.co/novimabe/bjc9wQj/5522154859.pdfIn PDF document text
    • https://cdn.sqhk.co/bevizewo/fr8jhNo/granny_square_tutorial_uk.pdfIn PDF document text
    • https://cdn.sqhk.co/lasesekov/ojet2hd/spaceship_earth_iphone_wallpaper.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485318/normal_5fd85fa8ba9ee.pdfIn PDF document text
    • https://cdn.sqhk.co/tojebaru/jgfgdih/25519696313.pdfIn PDF document text
    • https://cdn.sqhk.co/kapopajij/iiibjXv/groove_coaster_2_download_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480905/normal_60073d2a94cca.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369493/normal_5ff7e02e0fc92.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475406/normal_5fe2ae6eb1b05.pdfIn PDF document text
    • https://cdn.sqhk.co/ponesigis/agigTpP/magic_snake_3d_puzzle.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369519/normal_5fcef7b75ce7f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mubaviz.epizy.com/zironulagiker.pdfIn PDF document text
    • http://fefekug.rf.gd/41141912704.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/bloomberg_terminal_excel_guide.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD363 5372 bytes
SHA-256: a77b20c3830d462c0c8900368a47a87d7e6f53b4dfe37b1755f65fe84e897336
font_01_sfnt_off0000e5c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C3 10620 bytes
SHA-256: d7067938c58949e1d832bd2fb3c0c5abf52cf269ddb1942e1cdd0d2b829189d9