Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9971afb266baf8e…

MALICIOUS

PDF

264.8 KB Created: 2022-02-22 08:53:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 32e7346b9dc6cab649429f7cb0a250ba SHA-1: 3091f85f7dc46132fe53a7ca6e232d5fd540b7b7 SHA-256: f9971afb266baf8ee6e9ef4e4516062fae3512ef31d1b7dbb70c445fd4856868
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.8135

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://loheb.co.za/XSRYdR1H?utm_term=sutter+exceptional+c+pdf PDF link annotation
    • https://homeuu.biz/upload/ckeditor/pages/files/sovoxinivazuvus.pdfIn PDF document text
    • http://a9188.com/upload_files/art_files/files/20211203_124638.pdfIn PDF document text
    • http://bvsaigonbinhduong.com/uploads/files/7992632506.pdfIn PDF document text
    • http://profiklub.sanswiss.cz/files/file/vajizukebikep.pdfIn PDF document text
    • http://solarwindependence.com/ckfinder/userfiles/files/9910897301.pdfIn PDF document text
    • http://struttur-arch.it/userfiles/files/jedakiragowepunu.pdfIn PDF document text
    • http://unionnutritech.com/upload/files/gapizoralowatefujoxa.pdfIn PDF document text
    • http://architettoletiziamasciotta.eu/userfiles/files/87710948178.pdfIn PDF document text
    • http://aihyang.com/userfiles/file/dedaniwopanavogofulukogal.pdfIn PDF document text
    • http://fmmvn.net/userfiles/files/20505550007.pdfIn PDF document text
    • http://baigeleather.com/userfiles/file/runegonofale.pdfIn PDF document text
    • http://epplast.com/files/file/20533246304.pdfIn PDF document text
    • http://fautographie.org/images/userfiles/files/pubaka.pdfIn PDF document text
    • https://limsurdua.com/contents/files/nimunidu.pdfIn PDF document text
    • http://reside-realestate.de/user_files/files/rizife.pdfIn PDF document text
    • https://mysilo.com/upload/ckfinder/files/jotizubovojofona.pdfIn PDF document text
    • https://motiwalainstitutes.org/userfiles/file/jodilawosaxe.pdfIn PDF document text
    • http://sinching.com/uploadpic/files/202109112159361439.pdfIn PDF document text
    • https://www.arrigato.ch/cms_blog/ckeditor/kcfinder/upload/files/97408606878.pdfIn PDF document text
    • http://lynxauto.ru/userfiles/file/53121236431.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003a3ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A3EE 16408 bytes
SHA-256: e0e5e868268a0f30b1fcd674060e28f9bba38607b5c996f29d20f94ee8cfe920
font_01_sfnt_off0003ce86.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3CE86 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0003e5a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E5A6 10720 bytes
SHA-256: 41bcfd81d308fb60e057f8ada9b43c7c7c08e4432e5324a76e5aede73adf9dd1
font_03_sfnt_off0003fe60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FE60 16336 bytes
SHA-256: adf38969d40f501586e0caf93d33991e243baeeecfe575c4831cdbf64b7044fa

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