Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab04559b421f6ba…

MALICIOUS

PDF

427.7 KB Created: 2022-02-26 15:16:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-07-03
MD5: 91b12139b3a37d5f966a7ae3de978c06 SHA-1: 64d9bb59884d3004063dadc88bd6339f2e6d499b SHA-256: fab04559b421f6bae8b34899b33e3e95ea620e114b81ff5ab3e191ca43b1a955
216 Risk Score

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4641

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://fecuq.co.za/XSRYdR1H?utm_term=18+korean+drama+series PDF link annotation
    • https://www.hauptsache.cc/wp-content/plugins/formcraft/file-upload/server/content/files/161dc7e5c96398---kelikolapojogisaxopigadaz.pdfIn PDF document text
    • https://wamsconference.com/wp-content/plugins/super-forms/uploads/php/files/4d77a1a649b50becff113244fc69bc8a/95886582355.pdfIn PDF document text
    • http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/turojigajelo.pdfIn PDF document text
    • http://vitalenzyme.com/uploads/fckupload/file/71761169791.pdfIn PDF document text
    • http://goldendoodlesofthesierranevadas.com/userfiles/file/81085110058.pdfIn PDF document text
    • https://presentkompaniet.com/img/content/file/49128958094.pdfIn PDF document text
    • https://turkuazhost.com/calisma2/files/uploads/samawulubixojefedazadibip.pdfIn PDF document text
    • https://hotelgaric.com/upload/datoteke/99636820609.pdfIn PDF document text
    • https://hantverkarenisandby.se/UserFiles/files/nokepowirodusirijet.pdfIn PDF document text
    • https://www.booster-p.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612742502a5b7---67887439019.pdfIn PDF document text
    • http://bckbytow.naszbip.pl/img/upload/files/fusegitejafotegoziborabe.pdfIn PDF document text
    • https://www.blondel-bois.fr/ckfinder/userfiles/files/84054583987.pdfIn PDF document text
    • http://gibkrakow.pl/uploads/files/xisemevalewivujex.pdfIn PDF document text
    • https://cheesykeju.com/contents/files/lusuriwikikibof.pdfIn PDF document text
    • http://happy-land.hu/editor_up/witubenava.pdfIn PDF document text
    • https://www.vyrobadps.eu/admin/kcfinder/upload/files/wojezugewegigoriwumop.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/1620aa6e474699---47257919159.pdfIn PDF document text
    • http://wixoon.hu/upload/file/15475211493.pdfIn PDF document text
    • http://www.albertoabajolimousin.com/abm/Bibliotecas/kcfinder/upload/files/42584603371.pdfIn PDF document text
    • http://optometrystaprzemysl.pl/userfiles/file/jebojefopapugog.pdfIn PDF document text
    • http://kimura-shihoshoshi.com/userfiles/file/57972302139.pdfIn PDF document text
    • http://eschool365.in/js/admin/uploadfiles/file/sojig.pdfIn PDF document text
    • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/cee8adc34a7e17061d56b947003f01ac/lozajevuranuzonagorisizej.pdfIn PDF document text
    • http://barcabianca.eu/upload/file/jabajamivupasudisegifo.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/161a723db6e9a2---buxagasipedat.pdfIn PDF document text
    • http://mybooksite.net/kcfinder/files/remil.pdfIn PDF document text
    • http://soundspace.eu/Upload/file/luromabawejinojuwa.pdfIn PDF document text
    • http://theseadiaries.com/ckfinder/userfiles/files/49352207062.pdfIn PDF document text
    • https://www.servicespace.org/inc/ckfinder/userfiles/files/86897401314.pdfIn PDF document text
    • https://semsaesp.com/ckfinder/userfiles/files/xomit.pdfIn PDF document text
    • http://holflorstudio1.cz/upload/files/tuwifotegotejud.pdfIn PDF document text
    • http://phuocthuan.vn/images/pic/file/ximawekagofalanipunumukun.pdfIn PDF document text
    • https://hsse.hssanesteban.cl/files/vujolajo.pdfIn PDF document text
    • http://hermanosgolbano.com/admin/fckeditor/editor/filemanager/connectors/phpfile/84448560053.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_off00062b6c.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off00062b6c.bin)

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00062b6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62B6C 10520 bytes
SHA-256: 8e4c54db538cc54022f44b875732782d68a2dc6d33c0a80847b580a48a619166
font_01_sfnt_off0006435b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6435B 16560 bytes
SHA-256: 924ad5cb737cfd9a34472b2046831991df4d3950e5f0d7b552a18309318c2ee9
font_02_sfnt_off00065a75.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65A75 16092 bytes
SHA-256: 9d5144547e0b729630886a3ad3ce48e7da84b0115899dd9c2390406af6f0fecd
font_03_sfnt_off00066fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66FB6 18200 bytes
SHA-256: 69520d901066cd1676c2b4b8af361697759802b287296a0be1ceb0e87c122aaf