Malicious PDF — malware analysis report

Static analysis result for SHA-256 191a482db53eb74e…

MALICIOUS

PDF

343.9 KB Created: 2021-12-28 11:42:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: 8458d4b13ae5968988094b943eb9178a SHA-1: 938e438259fdcd64234c55f67a74c5aa8165b336 SHA-256: 191a482db53eb74eee0a0e59bbff6257e03916f2e37838c7e500b816f0f65e8e
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6763

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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://smidgel.ru/uplcv?utm_term=last+shelter+survival+guide+reddit PDF link annotation
    • https://ladachess.ru/userfiles/file/zoxumonugajeguwilebaz.pdfIn PDF document text
    • https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/70f0a0ff26bd21a3ae0fc03e7e936517/tozasidobasabux.pdfIn PDF document text
    • http://www.somdattabasu.com/fckimages/file/pagimafulubapofomatoxo.pdfIn PDF document text
    • http://ablerexthailand.com/userfiles/files/47412391925.pdfIn PDF document text
    • http://lsbwg.com/ckfinder/userfiles/files/20211115/1456043976.pdfIn PDF document text
    • https://astefin.ro/ckfinder/userfiles/files/rarofugexuxepugenoregeju.pdfIn PDF document text
    • http://poslovniimenik.net/firme_data/files/fopadek.pdfIn PDF document text
    • http://hp-cnc.de/uploads/files/rujasurupedawado.pdfIn PDF document text
    • https://ww150008.linebot.net/upfile/files/20211031165126.pdfIn PDF document text
    • http://tornyanggrace.com/upload/file/mijilepizemulajaz.pdfIn PDF document text
    • https://dukupahit.com/contents/files/diwelivelosuluxa.pdfIn PDF document text
    • https://812423.qqtogeljackpot2.com/contents/files/dakujori.pdfIn PDF document text
    • http://autokaryszczecin.pl/userfiles/file/xoxuga.pdfIn PDF document text
    • http://www.amedna.com/userfiles/files/piximamasarugejovaseva.pdfIn PDF document text
    • https://drhuanghair.com/uploads/files/202111150455119111.pdfIn PDF document text
    • https://himalmanpower.com/ckfinder/userfiles/files/25650430249.pdfIn PDF document text
    • http://www.ibadirect.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b6d9bd98b6---14275157770.pdfIn PDF document text
    • https://haisanquangninh.org/data/dulieu/files/migup.pdfIn PDF document text
    • http://jorkurojus.com/userfiles/file/fopekutoxabi.pdfIn PDF document text
    • http://laeuferdatenbank.wkel.de/UserFiles/File/zilekebuxazakodazerowo.pdfIn PDF document text
    • https://panificioilcavaliere.it/userfiles/files/20216238932.pdfIn PDF document text
    • http://iscyber.com/userfiles/files/95766100377.pdfIn PDF document text
    • https://saikekanglun.com/filespath/files/20211217135633.pdfIn PDF document text
    • http://mapect.com/upload/fckeditor/file/dabilejumov.pdfIn PDF document text
    • https://angelsforwarriors.org/userfiles/files/52964857068.pdfIn PDF document text
    • http://fabiocaronearchitetto.com/userfiles/files/foraz.pdfIn PDF document text
    • http://dtjxbpzx.com/filespath/files/20211221011542.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004f286.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F286 17996 bytes
SHA-256: 57fd04cfc951749c8c533478906a7d0598376658f690aa3412c1b6cefe558d60
font_01_sfnt_off000521a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x521A9 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_02_sfnt_off0005384d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5384D 10424 bytes
SHA-256: d88cc06efd940fb85bd97726fedcc35ef306d134be2643b639f0ee1f3b00d03b

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