Malicious PDF — malware analysis report

Static analysis result for SHA-256 ddd304c6f43abe23…

MALICIOUS

PDF

347.6 KB Created: 2022-04-06 08:01:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-16
MD5: 41964de435e6d222697e2a167d59b58f SHA-1: e8f36a1b499a9f789769adbebbd87bac8d1424b8 SHA-256: ddd304c6f43abe2341cc873293112d46a96d55d212bb23437ff3b8e69fdeb3db
161 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9587

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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://cafij.co.za/XSRYdR1H?utm_term=zumdahl+and+zumdahl+chemistry+9th+edition PDF link annotation
    • http://opersan.com/file/25110871452.pdfIn PDF document text
    • http://methese.com/upload/files/39002795931.pdfIn PDF document text
    • https://en.unecol.com/uploads/kcfinder/upload/files/wikubojetezufazupuwowomun.pdfIn PDF document text
    • https://guptajimarriagebureau.com/userfiles/file/foxanitununomaxap.pdfIn PDF document text
    • https://jimedugevebuz.weebly.com/uploads/1/3/4/4/134437071/f982e12a.pdfIn PDF document text
    • https://vavagufone.weebly.com/uploads/1/3/4/3/134345741/1adc568333296.pdfIn PDF document text
    • http://a-pluset.com/userfiles/xanatireminuzosewovimada.pdfIn PDF document text
    • http://siriussiramatik.com/panel/kcfinder/upload/files/rikarovigezesuremox.pdfIn PDF document text
    • https://dmshospital.com/mm_engg/files/xazesujevopetozodu.pdfIn PDF document text
    • http://unii-dz.org/app/webroot/js/kcfinder/upload/files/9415644102.pdfIn PDF document text
    • https://beperiguvo.weebly.com/uploads/1/3/4/3/134320750/desadu.pdfIn PDF document text
    • http://www.hzkontejnery.cz/ckfinder/userfiles/files/lotadubaba.pdfIn PDF document text
    • https://bevozuvegala.weebly.com/uploads/1/3/3/9/133999301/vufedubasugep_fazabezi_pomobuza.pdfIn PDF document text
    • https://stiff.pl/ckfinder/userfiles/files/puwonixipetam.pdfIn PDF document text
    • http://mauchlineware.com/html/chapelstreet/web/userfiles/files/68218839926.pdfIn PDF document text
    • http://thesnowmanicecream.com/ckfinder/userfiles/files/69946547332.pdfIn PDF document text
    • https://juladugalevatib.weebly.com/uploads/1/3/4/3/134385664/a8bef5cfb4a0b4e.pdfIn PDF document text
    • https://lebotowim.weebly.com/uploads/1/3/1/4/131438344/laposalejuk-nijokogojovu.pdfIn PDF document text
    • https://zadilomevesijob.weebly.com/uploads/1/3/4/5/134581884/wedamus.pdfIn PDF document text
    • https://pimakiwukusa.weebly.com/uploads/1/3/4/7/134712386/kamikijitigofe.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_off0004fd56.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0004fd56.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0004fd56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD56 11040 bytes
SHA-256: 13e3511813742b296667126fd2efcd95867cb31ab95abf6ca378e1d544649d54
font_01_sfnt_off000516f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x516F1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00052f03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52F03 18656 bytes
SHA-256: 8fb9cb7d4a2a41403b36f6978e8d2a9a0a7934f23cbfb73a4026caa352d23c79