Malicious PDF — malware analysis report

Static analysis result for SHA-256 454b0081e611e939…

MALICIOUS

PDF

68.9 KB Created: 2021-02-27 09:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0a496866b300207328e252a80f813f8d SHA-1: d548d3d64d2b15831ee083638cb2df0dacd08f4a SHA-256: 454b0081e611e93981bcf7f2dcd012a5d9b1adee5ee3397fbd2db931d838ce83
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://golowaki.ru/award?keyword=genie+2024+not+working PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4402940/normal_5fe07eb032c70.pdfIn PDF document text
    • https://cdn.sqhk.co/xedasuzefer/zXjNhhX/lep_s_world_3_download_free_for_pc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365582/normal_60049cfd16e39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391899/normal_6011ebbebc601.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475999/normal_6032e41612046.pdfIn PDF document text
    • http://kagifosotumaden.iblogger.org/leesville_lake_fishing_report_2018.pdfIn PDF document text
    • http://myirn.icu/134322840501hx4e.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/dqCahew/83174744762.pdfIn PDF document text
    • http://jumbochecker.com/asus_zenfone_3_laser_mobile_informationi95wj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490272/normal_60309bedafe78.pdfIn PDF document text
    • https://cdn.sqhk.co/zamodozitip/gh3jcia/54327769560.pdfIn PDF document text
    • https://cdn.sqhk.co/tuwebobit/J2Vifhg/78944920430.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://joriboka.epizy.com/17300259438.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_off0000cdc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC3 4980 bytes
SHA-256: 444c4ca9ad967470ac7ef9b65dc8e78f3ba0d56a4c5e1bd9e8f538904f9a4f9d
font_01_sfnt_off0000def0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF0 11652 bytes
SHA-256: 329d17cb05cb949ad4be5521d26e57fbe1b209c66b8915b73576e15b05a7409e