Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d844d5baa7c9bd0…

MALICIOUS

PDF

69.4 KB Created: 2021-10-11 15:10:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: f6601caff3c233a9a1d55e597b2649cf SHA-1: 1a6aaadcd2ccda8bb2c55668bdd6cd43242e3b56 SHA-256: 5d844d5baa7c9bd05445a50a933d2f7ee9206bc892ad2d6f20fc00d89bbae80d
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9916

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 69 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. 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://garglob.ru/uplcv?utm_term=tractors+for+sale+in+tyrone PDF link annotation
    • https://www.htlexpress.com/ckfinder/userfiles/files/65916875526.pdfIn PDF document text
    • https://ms01bet.com/contents/files/junimodis.pdfIn PDF document text
    • http://atrsara.ir/resource/files/dimifiviguwopoxedofi.pdfIn PDF document text
    • https://habibitours.org/ckfinder/userfiles/files/64278221171.pdfIn PDF document text
    • https://thefencedocumentary.com/adminfiles/file/tirodinuxis.pdfIn PDF document text
    • http://racecross.com/upload/edito_fckeditor/file/zawomimilefigi.pdfIn PDF document text
    • https://exlite.it/ckfinder/userfiles/files/lubowimimugipugumi.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/161450c43eff27---54251602544.pdfIn PDF document text
    • http://tnslib.tools/userfiles/files/devur.pdfIn PDF document text
    • https://stka.gr/ckfinder/userfiles/files/27108742126.pdfIn PDF document text
    • http://greenlivinggarden.com/htdocs/UserFiles/file/42882735210.pdfIn PDF document text
    • http://bienbao.net/uploads/files/39819672951.pdfIn PDF document text
    • http://yuanyoujie.vip/userfiles/file/72006883065.pdfIn PDF document text
    • http://aesg2edcv.handylover.com/upload/files/boxerepa.pdfIn PDF document text
    • http://xecuoihuyhoang.com/uploads/userfiles/file/89442440452.pdfIn PDF document text
    • https://www.stnedu.com/ckfinder/upload/files/tokulujubugenufusapab.pdfIn PDF document text
    • http://www.startservis.sk/novy/ckfinder/userfiles/files/zigijur.pdfIn PDF document text
    • http://seosanhrd.com/userfiles/file/rexosizokanafomamisakana.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613aab3e41146---dojagunezepul.pdfIn PDF document text
    • http://navrattan.co/userfiles/file/88634227678.pdfIn PDF document text
    • http://emannsltd.com/userfiles/48245949382.pdfIn PDF document text
    • http://www.stadion-zarya.ru/ckfinder/userfiles/files/73740022182.pdfIn PDF document text
    • http://pck.malopolska.pl/wp-content/plugins/super-forms/uploads/php/files/0b9e3766a666d397e6af876a1be0f1b3/sexuzafaranavidikavag.pdfIn PDF document text
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131f2ce1f714---jumobabigobimiwagewuxakuv.pdfIn PDF document text
    • http://change4best.ru/upload/file/rekiral.pdfIn PDF document text
    • http://rbc-bezorgdiensten.nl/upload/xetulub.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_off0000b3c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3C5 10404 bytes
SHA-256: aae7e611ff81cc0b65e99d3a5ab8dd7481388382582d394ba99d8e07adb51d36
font_01_sfnt_off0000cb7c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB7C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off0000e38e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE38E 13976 bytes
SHA-256: 0542bbef88efccadcae195409f0414c92b5631a724bf33af03d3c91248e7f1dd