Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c561e479ecc2a3…

MALICIOUS

PDF

379.7 KB Created: 2022-03-23 23:43:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: b61b57c015b6911c79997207d8dfd06d SHA-1: afb945dac60defc1bf1a79f192ae4f1c3a5a7b34 SHA-256: 93c561e479ecc2a344c3d8b9a6807a6be540299c81f0a29dd6bb6e5a515bc452
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7188

Heuristics 6

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://sinaia-vik.com/admin/fckeditor/editor/filemanager/connectors/php/file/purupufafajuvis.pdf In PDF document text
    • http://faithhh.net/js/kcfinder/upload/files/tororubojiv.pdfIn PDF document text
    • http://lirealestatelitigator.com/wp-content/plugins/super-forms/uploads/php/files/7eb6e4d80e668ed86da89b6ba4472146/debuvoxaxixoxunadad.pdfIn PDF document text
    • http://thermogroup.ru/uploads/files/25717116623.pdfIn PDF document text
    • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fd99f07c947---24927448486.pdfIn PDF document text
    • https://sklepbonus.pl/userfiles/file/89113774420.pdfIn PDF document text
    • http://aedjtjdshbf.pretty-match.com/upload/files/womagerimuwixegej.pdfIn PDF document text
    • http://topenglish.sk/app/webroot/gallery/files/52028469884.pdfIn PDF document text
    • http://syntrend.critical.tw/upload/files/dumofiguletevifosemetixam.pdfIn PDF document text
    • http://daehwa.info/uploaded/file/31578202856.pdfIn PDF document text
    • https://piataafacerilor.ro/app/webroot/files/userfiles/files/61804920566.pdfIn PDF document text
    • http://vijyaiprismcrm.com/userfiles/files/72772555597.pdfIn PDF document text
    • http://szyoujin.com/UploadFile/file/20220319005058286.pdfIn PDF document text
    • http://www.appsolutely.sg/wp-content/plugins/formcraft/file-upload/server/content/files/162278ba207340---43130632956.pdfIn PDF document text
    • http://terrigena.cz/data/pic/files/bovudedisizakasopogu.pdfIn PDF document text
    • http://yugreat.com/filespath/files/20220316121925.pdfIn PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16233950966e2d---bidegoj.pdfIn PDF document text
    • https://elemental-ia.com/userfiles/file/kamevojotiroje.pdfIn PDF document text
    • http://seasonsblinds.com/uploads/ckfinder/userfiles/files/dodosajapubofaj.pdfIn PDF document text
    • http://angarakshaksecurity.com/userfiles/file/17245272285.pdfIn PDF document text
    • http://www.iso-clean.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1622dc48146877---waboparoriwafawemekodidi.pdfIn PDF document text
    • https://chsins.tw/uploads/files/202203200623348411.pdfIn PDF document text
    • http://xn--80aer5aza.xn--19-kmcm3c.xn--p1ai/ckfinder/userfiles/files/68283730473.pdfIn PDF document text
    • https://hotelgaric.com/upload/datoteke/11096126679.pdfIn PDF document text
    • https://interplast.bg/royal/userfiles/file/boforolaxesela.pdfIn PDF document text
    • http://noithatvietsky.net/media/ftp/file/38005007866.pdfIn PDF document text
    • https://dynasty888.com/image/files/20220210_230758.pdfIn PDF document text
    • http://medicapoland.pl/uploaded/file/11862058070.pdfIn PDF document text
    • http://aventurinproject.tesztweboldal.com/uploads/files/83799014463.pdfIn PDF document text
    • https://nothingbutsafetyglasses.com/userfiles/file/23942069527.pdfIn PDF document text
    • http://mondoacquapiscine.com/userfiles/files/soxupumokep.pdfIn PDF document text
    • http://www.grundys.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1622261d6d604b---satipegok.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/dazoxoposepajekelexemi.pdfIn PDF document text
    • http://le-lemniscus-incandescent.fr/ckeditor/upload/files/wesowopuruvi.pdfIn PDF document text
    • https://cafij.co.za/XSRYdR1H?utm_term=suisei+no+gargantia+ova+3PDF link annotation
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/09931240cdffd97fd4ab5a84ba65a3be/dudotup.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_off00057b11.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00057b11.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57B11 19596 bytes
SHA-256: 92a053780fc4bac8e0816c71a745fcc2997aa66022b6792a6788741aa713368e
font_01_sfnt_off0005ae23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE23 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off0005c543.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C543 10648 bytes
SHA-256: bcd4fec723947b7816662786051a7fd72a3cce22a9799220b69ecc8a525f7544