Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa8fbd8767f26ba2…

MALICIOUS

PDF

69.7 KB Created: 2021-09-29 07:59:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-06
MD5: ac30088218b1f226bb547190f5ce797e SHA-1: 181b20b0f10f78160676fe230676b0e1c172e78b SHA-256: aa8fbd8767f26ba24e5c3447241bce8360f0bfe6713dcd379ea7c3c4e0e43da0
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

Heuristics 7

  • 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-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://smidgel.ru/uplcv?utm_term=easy+screenshot+android+app PDF link annotation
    • https://cuatudongnhatrang.com/uploads/files/puvepolazuve.pdfIn PDF document text
    • https://lyonsinn.com/nbloom/fckuploads/file/8475959777.pdfIn PDF document text
    • http://interroadholland.nl/userfiles/file/70117671091.pdfIn PDF document text
    • https://www.masismarketing.com/wp-content/plugins/super-forms/uploads/php/files/7e6206de30054398be4a64b46c03e079/jalogodofedopiti.pdfIn PDF document text
    • http://xn--80ab1a9a.xn--p1ai/sadm_files/tokeginexodubetezisunabej.pdfIn PDF document text
    • http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613cefea352fe---zufep.pdfIn PDF document text
    • http://kup-vino.cz/web/ckfinder/userfiles/files/55942033176.pdfIn PDF document text
    • http://vimar.ua/userfiles/files/ximezazakejimesodalimag.pdfIn PDF document text
    • https://nikoljski.com/ckfinder/userfiles/files/pawoladedebeju.pdfIn PDF document text
    • http://sfssolution.com/userfiles/file/netenaderabonusuwapisav.pdfIn PDF document text
    • https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/1e2k2o9r04gm49v1cf7an3jl4l/29684597539.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/zigufatereneja.pdfIn PDF document text
    • http://victorylimo1.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153a1294f3ad---jomexosawakit.pdfIn PDF document text
    • http://donkaew-furniture.com/ckfinder/userfiles/files/guritubafarananu.pdfIn PDF document text
    • http://abaj.cz/UserFiles/File/44063646896.pdfIn PDF document text
    • https://yumasri.com/assets/ckfinder/userfiles/files/51774578893.pdfIn PDF document text
    • https://bomando.bomsolar.com/uploadfiles/files/63193455485.pdfIn PDF document text
    • http://naoshima-habitant.com/images/blog/file/xomifugi.pdfIn PDF document text
    • https://edukiya.com/wp-content/plugins/super-forms/uploads/php/files/2b1eae077376a9467a8ac799c3f0aa54/24132223156.pdfIn PDF document text
    • http://ingore.cn/upload/files/43784098660.pdfIn PDF document text
    • https://orderpoet.com/ckfinder/userfiles/files/lisobunalosizidapuzoxu.pdfIn PDF document text
    • http://capitolmetrophysicaltherapy.com/userfiles/file/gitexedanuzufexogeda.pdfIn PDF document text
    • https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/16135c10ff1c22---mijijefa.pdfIn PDF document text
    • http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1614b549f00ad8---14252897827.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_off0000b2e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2E5 14304 bytes
SHA-256: 289965596d76b0244e2e0825eba4e80e8b70fa32d19cdd4d860c8d90452f5fd9
font_01_sfnt_off0000d65d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD65D 10664 bytes
SHA-256: ac97608c2f6b36e2699af15502524c67010837efd38631c13c2fa1233dd7389e
font_02_sfnt_off0000eec8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEC8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1