Malicious PDF — malware analysis report

Static analysis result for SHA-256 88b1b3ea0b10d2ad…

MALICIOUS

PDF

267.5 KB Created: 2022-03-18 00:55:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: 43eed11c43a4c59702adbf8bf3b47e25 SHA-1: 70a94ffef5017197513d87c3dafedc4ebe74cb1f SHA-256: 88b1b3ea0b10d2ad79831d0efb63003cced035b82ebec269e41caea0d731ff39
246 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.6013

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
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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 PDF combines external action with parser-evasion structure high PDF_ACTION_PARSER_EVASION
    PDF has an external clickable URI together with object graph or xref structures that make parsers disagree, such as divergent duplicate objects, parser divergence, or xref offset mismatch. That combination is stronger than a plain link: the document is both an outward-action carrier and a parser-confusion/evasion sample.
  • 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://mifuj.co.za/XSRYdR1H?utm_term=guided+meditation+alien PDF link annotation
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/o37v9jcfn2srfsfs329ia9b6a5/zijivam.pdfIn PDF document text
    • https://e-ceramika.pl/userfiles/file/11799376025.pdfIn PDF document text
    • https://thebillionbottom.com/business_school/uploads/file/gofiwefix.pdfIn PDF document text
    • http://www.sana-anong.com/ckeditor/ckfinder/userfiles2/files/26004013417.pdfIn PDF document text
    • http://huspanda.com/data/ckfinder/files/bexabuwixav.pdfIn PDF document text
    • http://kukdae.com/files/fckeditor/file/tugibesez.pdfIn PDF document text
    • http://dgone.kr/userfiles/file/20220311232841.pdfIn PDF document text
    • http://kapalishakti.com/ckfinder/userfiles/files/zarupudanidi.pdfIn PDF document text
    • http://hkacca.com/userfiles/vinufolipadu.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/a9b8ac76aadf0ae3f1cc3fe07fa80aae/19266490374.pdfIn PDF document text
    • http://conviviodihera.it/dati/upload/file/dorulumebe.pdfIn PDF document text
    • https://www.grecosalesinternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/16233b0b86790f---wuzakani.pdfIn PDF document text
    • http://internationalelectric.ru/test/sites/default/files/file/46288307360.pdfIn PDF document text
    • https://inflexi.com/kcfinder/upload/files/maxolir.pdfIn PDF document text
    • http://leviedelsignore.it/gallery/files/zomadarurifabosukir.pdfIn PDF document text
    • http://www.rpv-drachten.nl/files/file/43431712864.pdfIn PDF document text
    • https://ric-sb.si/uploads/files/5777501384.pdfIn PDF document text
    • https://www.kindspring.org/inc/ckfinder/userfiles/files/91417857821.pdfIn PDF document text
    • http://ehomeforeclosure.org/images/file/45749204308.pdfIn PDF document text
    • http://ledlight-lamp.com/mingyi/images/userfiles/file/53385645209.pdfIn PDF document text
    • http://www.hz-kontejnery.cz/ckfinder/userfiles/files/91083454638.pdfIn PDF document text
    • https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623109f5df820---33682306871.pdfIn PDF document text
    • https://ppntassone.it/dati/upload/file/vanegitufisa.pdfIn PDF document text
    • https://gulfsupremesa.com/ckfinder/userfiles/files/66142649985.pdfIn PDF document text
    • https://www.cuadernosmanchegos.com/panel/cuadrodemandos/assets/ckeditor/kcfinder/upload/files/vuliwadabalif.pdfIn PDF document text
    • https://anep.it/ckeditor/kcfinder/upload/files/95811091468.pdfIn PDF document text
    • http://amis-simserhof.fr/kcfinder/upload/files/zimitekasanejofalamowe.pdfIn PDF document text
    • https://cecinacuore.uplinkcrm.it/writable/public/userfiles/file/46144252087.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/6e79c042846d9b414601dd876bf70ac3/kilomoruguzokovanej.pdfIn PDF document text
    • http://laeuferdatenbank.wkel.de/UserFiles/File/77916533863.pdfIn PDF document text
    • http://cableesmaltado.com/d/files/jubijo.pdfIn PDF document text
    • https://cualuoihoanmy.com/uploads/userfiles/file/wazazipe.pdfIn PDF document text
    • http://portaldeaquidauana.com.br/ckfinder/userfiles/files/52141573237.pdfIn PDF document text
    • https://luckyfood.itweald.com/uploads/files/621d0f7a9e454.pdfIn PDF document text
    • http://familiegravesen.dk/ckfinder/userfiles/files/roxadonogesuda.pdfIn PDF document text
    • http://studioingegneramato.com/userfiles/files/reresupo.pdfIn PDF document text
    • http://dinapart.net/frontend/web/kcfinder/upload/files/fuvizotijeguwavugiriname.pdfIn PDF document text
    • http://dream-mebel.com/pic/file/silafufevobifepofi.pdfIn PDF document text
    • http://wonikqnc.com/upload/editor/file/1643888284.pdfIn PDF document text
    • http://coumert.com/images/file/15754433641.pdfIn PDF document text
    • http://goupcrm.com.br/kcfinder/upload/files/lokujabenakosedamu.pdfIn PDF document text
    • https://rachelrom.com/rescontent/file/40050655477.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_off0003bfd2.bin)
    +1 more URL(s)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003bfd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3BFD2 10280 bytes
SHA-256: 99585db70137ff916f1b02bcc4110592b2218a321a54fef23c3581668c068e66
font_01_sfnt_off0003d6ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D6ED 18084 bytes
SHA-256: 36520b422d0a2ebb6c8f34e04f3e74e1e798c4c3486cb0cc32d894df27d797de
font_02_sfnt_off00040696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x40696 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9