Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9ca606b1f666335…

MALICIOUS

PDF

322.4 KB Created: 2022-03-18 00:02:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-26
MD5: cb4ad707c28acdf7e9a1a33effd6ddbf SHA-1: dcbe1d417f4119fa9f28edd06f81d686bc75fdb0 SHA-256: a9ca606b1f6663355019d7597d3946f4fe24bc3442ba71a2aa61a6b9d0e627a0
231 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6000

Heuristics 8

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.
  • 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://wirut.co.za/XSRYdR1H?utm_term=counter+strike+source+map+pack+free PDF link annotation
    • https://vialivonica.eu/userfiles/files/zagubuxiwalugatefarinemi.pdfIn PDF document text
    • http://www.egavilanes.com/ckfinder/userfiles/files/jolorilebu.pdfIn PDF document text
    • https://questyme.com/userfiles/file/nasokevozowuk.pdfIn PDF document text
    • http://xtra360.net/campannas/file/mifodasa.pdfIn PDF document text
    • https://www.alfalahmedical.org/c_panel/ckeditor1/ckeditor/kcfinder/upload/files/nipifosopibo.pdfIn PDF document text
    • http://gioithieu.btccorp.vn/uploads/files/xizivonamosavovuvibo.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/bb00b4657bfba9db1991b720475ea8d2/desafurusasuja.pdfIn PDF document text
    • https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/656c225e8d316a53b6483b499b5ceaa6/2813457910.pdfIn PDF document text
    • http://ns1.constantcontinuity.com/membership/data/files/55337393440.pdfIn PDF document text
    • https://cmri.ckbirlahospitals.com/controlpanel/kcfinder/upload/files/sazuferew.pdfIn PDF document text
    • http://uralteplostroy.ru/content/file/tamozolalene.pdfIn PDF document text
    • http://bdsps.org/slbdavbatala/userfiles/file/81650487301.pdfIn PDF document text
    • https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/pme28l3tntkrqbaod3jb7295va/52933095655.pdfIn PDF document text
    • http://printrun.nl/userfiles/files/28748715549.pdfIn PDF document text
    • https://sukienmiennam.com/userupload/files/95589496447.pdfIn PDF document text
    • https://rakbah.healthybitespk.com/alpha/ckfinder/userfiles/files/63926202175.pdfIn PDF document text
    • http://falcon.dk/sites/default/files/webfm/fewinekorobogesizujokupo.pdfIn PDF document text
    • https://erimti.com/userfiles/file/85378656811.pdfIn PDF document text
    • https://daqing-jewelry.com/uploads/files/202202261949575307.pdfIn PDF document text
    • http://taikenplan.jp/ckfinder/userfiles/files/84266366538.pdfIn PDF document text
    • http://grafika.szklo-lux.pl/nowa/userfiles/file/5245223728.pdfIn PDF document text
    • http://reputesystems.com/app/webroot/uploads/files/lofoxudusisexixotusofalet.pdfIn PDF document text
    • http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/161f92ab347f14---38530454617.pdfIn PDF document text
    • http://universalthailand.com/images/uploads/ckfinder/files/ratesawijojabuxalegiwuw.pdfIn PDF document text
    • http://flathead.herosuite.com/userfiles/file/85123171488.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1620c8fe67e4ba---22792813636.pdfIn PDF document text
    • http://de-ko-gmbh.com/ckfinder/userfiles/files/25607305128.pdfIn PDF document text
    • https://personnelstrategies.net/userfiles/file/17932982944.pdfIn PDF document text
    • https://tvsporedi.si/vsebina/1265009820.pdfIn PDF document text
    • http://konditsionery-odincovo.ru/upload_picture/file/sedubazusow.pdfIn PDF document text
    • http://ncdesign.it/userfiles/files/20283322787.pdfIn PDF document text
    • http://xn--q20b13r9leepaeb.net/upload/file/202203081054351491.pdfIn PDF document text
    • https://argumentua.com/i/file/30381481683.pdfIn PDF document text
    • https://apc-algercentre.dz/ckfinder/userfiles/files/9027764468.pdfIn PDF document text
    • http://vit-physio.de/file/raxasazosegegofojekug.pdfIn PDF document text
    • https://035620126.tw/upload/greenkitchen/files/42240475180.pdfIn PDF document text
    • http://asthmabd.net/journal/assets/ckeditor/kcfinder/upload/files/68971871607.pdfIn PDF document text
    • http://www.dieseproductions.com/upload/customNews/files/41664931734.pdfIn PDF document text
    • https://www.peltonfell.org.uk/ckfinder/userfiles/files/logivasofat.pdfIn PDF document text
    • http://pscworld.eu/ckfinder/userfiles/files/sinaxomomipidajukibuv.pdfIn PDF document text
    • http://studiogiamberardino.it/userfiles/files/tifokabejibowofopomu.pdfIn PDF document text
    • http://inlocoodontologia.com.br/assets/kcfinder/upload/files/26272287275.pdfIn PDF document text
    • http://sasnowosielski.com/ckfinder/userfiles/files/vuvatu.pdfIn PDF document text
    • http://theeultimatenetworker.com/ckfinder/userfiles/files/16324017546.pdfIn PDF document text
    • http://barcodeegypt.com/public/kcfinder/upload/files/84358256343.pdfIn PDF document text
    • https://jagamimpi.com/contents/files/tusixolulowemidasap.pdfIn PDF document text
    • http://jovanrajsic.net/storage/files/63365362809.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
    +6 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000497a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x497A5 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_01_sfnt_off0004aec6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AEC6 10816 bytes
SHA-256: a9fe2cdd7a594c624f87cdd9f5c9d35f83187a108ab6a497112b99d3247cf70e
font_02_sfnt_off0004c7d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C7D6 18520 bytes
SHA-256: 5fc72557a307e05eb8554ad29efeac26b6d631d6aba78b28be9d647a9aed2e90