Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afa1497d3971ed6…

MALICIOUS

PDF

79.4 KB Created: 2021-10-05 06:32:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: 47fb4b25a48eedc0e6f8ff2ab272597a SHA-1: ad39640b0853a5a4274f3cb10a48b19820088bfe SHA-256: 4afa1497d3971ed613b5e72d1ae58fce11186a137200d70351febd0b2364b9eb
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9846

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
  • 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://chcial.ru/uplcv?utm_term=code+word+for+the+letter+i PDF link annotation
    • https://alpasol.e-giant.net/upload/files/kijezefe.pdfIn PDF document text
    • http://burragebrothers.org/demo/jolie/beta/userfiles/files/23366321631.pdfIn PDF document text
    • https://hazeloyun.com/calisma2/files/uploads/fupisowugaminegod.pdfIn PDF document text
    • http://saktigroup.in/uploads/77669293646.pdfIn PDF document text
    • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/93303444222.pdfIn PDF document text
    • http://nextlab-semi.com/files/fckeditor/file/84184974292.pdfIn PDF document text
    • http://studiolegaletrotta.eu/userfiles/files/baletabawexumegek.pdfIn PDF document text
    • http://shanghaiqingchen.com/upload/files/rasurekomepefoda.pdfIn PDF document text
    • http://smalternatywa.pl/media/upload/files/34ab6c60db4b37e687405d737e779525.pdfIn PDF document text
    • http://srmtteaparty.com/uploads/files/202109161626209811.pdfIn PDF document text
    • https://hometeamcorp.com/images/usr/saxakubuliv.pdfIn PDF document text
    • http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137d0d6d1d0f---nixojugesimi.pdfIn PDF document text
    • https://www.corpeverest.com/ckfinder/userfiles/files/tidizumuxiwewalokegazi.pdfIn PDF document text
    • http://www.mueblesgamez.com/ckfinder/userfiles/files/mowar.pdfIn PDF document text
    • https://karolinanowak.com/userfiles/file/58633601909.pdfIn PDF document text
    • https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/1f831d5ad3f4d62f534604bd8a313b42/22918951188.pdfIn PDF document text
    • http://xn----7sbbgprpk7biiq.xn--p1ai/admin/ckfinder/userfiles/files/zumutilapoduli.pdfIn PDF document text
    • http://minerva-collection.net/files/files/32570614372.pdfIn PDF document text
    • http://80tner.friend-match.com/upload/files/karadod.pdfIn PDF document text
    • http://pizzeria-millemiglia.de/app/webroot/img/editor/file/dowubavafugokeribafuwir.pdfIn PDF document text
    • http://rebeccaosborne.com/uploads/rajikuzili.pdfIn PDF document text
    • https://thegioibaobicarton.com/Images_upload/files/dojilifebudidibanexep.pdfIn PDF document text
    • https://medgal.pl/admin/ckfinder/userfiles/files/57950682413.pdfIn PDF document text
    • https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613aad5787684---34318023543.pdfIn PDF document text
    • http://ohana1bbq.com/uploads/files/dujazutazidadowu.pdfIn PDF document text
    • http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/89394966494.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_off0000d35d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35D 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eb74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB74 10132 bytes
SHA-256: 5af3d1ca6978df4caa569a5f50a60f6abbbf2369556bf595e6d26f472b46d94e
font_02_sfnt_off0001023a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1023A 17988 bytes
SHA-256: 91e7980153f378c7c3679cb6dfac5515e0d80cb12eb3dff94fd7cc3dd0989487