Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bcbbc18ba59246…

MALICIOUS

PDF

274.5 KB Created: 2022-03-10 03:49:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-03
MD5: 5a28bc1b6fbfdcc97ce3ef8df685845e SHA-1: 44b43b603a8cf85aa2c3da1a676079a8977fc39a SHA-256: 22bcbbc18ba59246ab19336d9bd93bcb54017ac7cc98adb63c90252bf1aa93cc
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.7863

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://wirut.co.za/XSRYdR1H?utm_term=backup+database+plus+archivelog+format PDF link annotation
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/161f959ee2af6f---malodowefo.pdfIn PDF document text
    • https://daaeportrett.no/upload/file/38624054944.pdfIn PDF document text
    • http://derkwoo.com/upload/editor/files/69415670027.pdfIn PDF document text
    • https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/f4c7108bd717dba0bdabf26282471663/fufet.pdfIn PDF document text
    • https://jnnjhansi.com/userfiles/file/kepefavasizovomopawuzez.pdfIn PDF document text
    • http://79.170.40.182/boothtastic.com/wp-content/plugins/formcraft/file-upload/server/content/files/161fb5e49d90eb---26890547672.pdfPDF link annotation
    • http://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/16204b44e31bb8---87456740126.pdfIn PDF document text
    • https://dptech.vn/uploads/files/rugeguxut.pdfIn PDF document text
    • http://liebherr-tr.com/userfiles/file/kaxufavifoperuwizugiza.pdfIn PDF document text
    • https://vicareyou.com/userfiles/file/73204295816.pdfIn PDF document text
    • https://derechosenred.org/aym_image/files/sosewaweja.pdfIn PDF document text
    • http://ljsmelt.com/upload/files/89911895413.pdfIn PDF document text
    • https://karthikaspices.com/uploads/file/78032211557.pdfIn PDF document text
    • https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/60252368899.pdfIn PDF document text
    • http://pololanna.com/user_img/files/250216925.pdfIn PDF document text
    • http://nhasachthunam.com/upload/files/roragebalunam.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/2cef93308e6dbcf9e548af5909883ec0/rorowazuloxagizafax.pdfIn PDF document text
    • https://henuopack.com/d/files/fiwofaxozatuwegolukodow.pdfIn PDF document text
    • http://hzjksj.com/images/upload/File/tuweguparex.pdfIn PDF document text
    • http://hqshop24.com/userfiles/file/rojunafapimomofozod.pdfIn PDF document text
    • http://anaheim81.com/kcfinder/upload/files/91714413088.pdfIn PDF document text
    • http://re-media.ru/foto/ck/files/92727990155.pdfIn PDF document text
    • http://vietsonplastic.com/uploads/userfiles/file/kadapinomasid.pdfIn PDF document text
    • http://jdjcnc.com/upfolder/e/files/20220211041225.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_off0003d777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D777 11416 bytes
SHA-256: 1eea1db86a6077b118b55e2e624535ab2072747167b401a391c292a740d3a84d
font_01_sfnt_off0003f212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3F212 18932 bytes
SHA-256: 16cf6128df7126a44296110f0d0df64b5914cccebc487105ccf0f378b8d0e34f
font_02_sfnt_off00042406.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x42406 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9