Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc64fa7b5c0d5bb…

MALICIOUS

PDF

93.6 KB Created: 2021-09-23 19:16:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-01
MD5: ac3b4c965d8c1e8471b467d9812b485f SHA-1: 8c962b96880db1ad4f812548a02833c495a863fa SHA-256: bcc64fa7b5c0d5bb67786d910e50a4acea5c395907e62828f00e0c2672c9f3f9
176 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9866

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
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://crewmak.ru/uplcv?utm_term=r+recorder+apk PDF link annotation
    • http://kustari.net/userfiles/file/6812762908.pdfIn PDF document text
    • http://hmed.vn/upload/files/63446500302.pdfIn PDF document text
    • https://sukienmiennam.com/userupload/files/taket.pdfIn PDF document text
    • https://butyfarm.mm520.net/userfiles/files/16477911313.pdfIn PDF document text
    • https://eric-parnes.shortex.com/ckfinder/userfiles/files/lapatenomu.pdfIn PDF document text
    • https://hinaweb.com/upload/file/29263613778.pdfIn PDF document text
    • http://hidropro.hu/upload/67393472063.pdfIn PDF document text
    • http://izeninfo.net/admin/upload/files/titogulizukulituzomo.pdfIn PDF document text
    • http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/505ce3b8ae2ca4a2b39b3a4e5e93aa08/puvumo.pdfIn PDF document text
    • http://combatkuntao.com/ckeditor/ckfinder/userfiles/files/memuxo.pdfIn PDF document text
    • http://zehanbiopharma.com/upload/files/18560113621.pdfIn PDF document text
    • https://bodymason.com/user_uploads/files/sudinugeza.pdfIn PDF document text
    • http://grupophi.es/uploads/files/xumopuge.pdfIn PDF document text
    • http://myphamso1.net/uploads/files/sopejafanoname.pdfIn PDF document text
    • http://tajeer.co/userfiles/file/ruludubux.pdfIn PDF document text
    • http://dioblina.eu/userfiles/file/jomefedufesewexilopo.pdfIn PDF document text
    • http://ekopaczka.pl/imgbrama/files/xigetulusibu.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/0213362b3d55aa163421587bd2afee26/vupoforeleza.pdfIn PDF document text
    • https://living-stone.lu/userfiles/files/tosefibiluxisupekinowi.pdfIn PDF document text
    • http://www.rlktechniek.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16147e13f6533f---luweb.pdfIn PDF document text
    • http://paulbwatkinslaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/ragaxe.pdfIn PDF document text
    • http://tokyoracing.hu/userfiles/file/42205357903.pdfIn PDF document text
    • https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/a3617921a76c12b48d99d5af2c87649c/gonuw.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e061.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE061 16244 bytes
SHA-256: fddcbe21bdf9fb2753729b4ab5b26d7a3fbb01e3fe51d41ab0725360e25c189d
font_01_sfnt_off0000f64b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF64B 22520 bytes
SHA-256: edc7d98ab5ab665b1131db1b296e350097299a9c206ae698bfcc9062827afe99
font_02_sfnt_off00013056.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13056 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off0001486d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1486D 10136 bytes
SHA-256: a2dbe59ba4948b6a1564f46bf499a6eab3b366f39a67ffad72f6eca3b694b30c
font_04_sfnt_off00015f21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15F21 1680 bytes
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc