Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9cb8fb7b135cb54…

MALICIOUS

PDF

410.5 KB Created: 2022-04-01 05:03:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: 3f61750bda770f654467348fb54adb97 SHA-1: 0b87372bc39d51b7c855e64262e1f45c476fbad4 SHA-256: a9cb8fb7b135cb54d8aff2df0571c040a52fe3b18495d6e83e1512c21aa38471
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6452

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=historia+natural+dela+enfermedad+parkinson PDF link annotation
    • https://wimiberurazem.weebly.com/uploads/1/3/4/3/134351881/digowivesugaz.pdfIn PDF document text
    • https://bufetokarad.weebly.com/uploads/1/3/4/0/134096279/welileruwukade.pdfIn PDF document text
    • http://progressive-auto.ru/app/webroot/js/kcfinder/upload/files/8383922086.pdfIn PDF document text
    • https://darurirajilubi.weebly.com/uploads/1/3/4/3/134318819/8974694.pdfIn PDF document text
    • https://nawopudupavipe.weebly.com/uploads/1/3/4/8/134856820/8261ac4.pdfIn PDF document text
    • https://femawigir.weebly.com/uploads/1/3/4/6/134661536/fanatebarori.pdfIn PDF document text
    • https://aymsoft.us/aym_image/files/sugurimiruf.pdfIn PDF document text
    • https://gitarufimoka.weebly.com/uploads/1/3/4/2/134235546/fcf4ace.pdfIn PDF document text
    • https://suwutijotelites.weebly.com/uploads/1/3/6/0/136083726/vojoniz-roditakom.pdfIn PDF document text
    • https://altinone.cz/files/ckfiles/file/3054814024.pdfIn PDF document text
    • https://sositero.weebly.com/uploads/1/3/4/3/134389363/f9811.pdfIn PDF document text
    • https://zaboxunur.weebly.com/uploads/1/3/4/3/134369304/a91cd4c829.pdfIn PDF document text
    • https://darugagoremu.weebly.com/uploads/1/3/4/5/134588092/pedezudivijopesokuxe.pdfIn PDF document text
    • https://tarutugiwom.weebly.com/uploads/1/3/5/3/135326066/ec0042ae1f9b4.pdfIn PDF document text
    • http://cosmeticdermatologymiamibeach.com/uploads/data/files/zisagopebageguvizi.pdfIn PDF document text
    • https://jerewerek.weebly.com/uploads/1/3/5/3/135349205/vafadonose.pdfIn PDF document text
    • http://oldmotorsclub.com/files/file/podupuge.pdfIn PDF document text
    • https://zagavodemutiza.weebly.com/uploads/1/3/0/8/130814258/287260.pdfIn PDF document text
    • https://xiwulugizasu.weebly.com/uploads/1/3/2/7/132741433/dilikuk.pdfIn PDF document text
    • https://vukigadanexisa.weebly.com/uploads/1/4/1/2/141232846/7875798.pdfIn PDF document text
    • https://renexiba.weebly.com/uploads/1/3/4/8/134895383/jator.pdfIn PDF document text
    • https://gawotajar.weebly.com/uploads/1/3/4/5/134525297/78184de7.pdfIn PDF document text
    • http://home-plast.ru/foto/files/88637346466.pdfIn PDF document text
    • http://alconsprom.ru/ckfinder/userfiles/files/zunonatebabulo.pdfIn PDF document text
    • https://nupinowag.weebly.com/uploads/1/3/0/8/130814423/a9be1b6c.pdfIn PDF document text
    • https://karsdanapazari.com/panel/kcfinder/upload/files/zapetubagu.pdfIn PDF document text
    • http://varnamonarradio.se/admin/kcfinder/upload/files/sozesediseganabosapunu.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 extracted file (font_00_sfnt_off0005d77b.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0005d77b.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005d77b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D77B 22292 bytes
SHA-256: 431766e9f5b3b24ce6d413879ab60cddeccde95a5adf35cf271c8164e948059d
font_01_sfnt_off00061123.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61123 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00062934.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62934 16192 bytes
SHA-256: cebb642c0aed083006e60dabc3ce9e4a981f3eabe2a4b04251a171ead8348966
font_03_sfnt_off00063ef0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63EF0 10844 bytes
SHA-256: 6b97004c9e5d1b629a9b6a6cc04be4102b13435ffa5ad92aaf7c2155f7c6101d