Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4c6b9293495879c…

MALICIOUS

PDF

86.4 KB Created: 2021-08-21 19:56:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-17
MD5: a340eaad83ac959e4c3e8da96b9bd2a0 SHA-1: c33ae5b83b880179ad35f73f8490e1046241a548 SHA-256: f4c6b9293495879c3a4f23cfa289b8a9b9a9a71180cac54440357c6cd0aeaa20
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains a link farm pointing to compromised WordPress uploads and disposable hosting, likely intended to trick users into downloading a password-protected archive. No scripts were extracted, but the PDF structure and URL patterns suggest an attempt to deliver a secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9981

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
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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 http://sbnjl.com/userfiles/files/vedebenu.pdf In PDF document text
    • http://coreaad.com/DreamDataUpload/file/84734407167.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1608ba7bce4779---juduxojepozigar.pdfIn PDF document text
    • http://myafmc.com/clients/a/a5/a51d49d85de18111a3d718c63a5e5081/File/witavetuxojipeboj.pdfIn PDF document text
    • http://johncarroll1967.com/clients/1/18/1896e795ecc2602204d707ec4e69586f/File/64236592550.pdfIn PDF document text
    • https://marbeyoyun.com/calisma2/files/uploads/94080867986.pdfIn PDF document text
    • https://educationindiajournal.org/ckfinder/userfiles/files/dobegojirubotizuzurof.pdfIn PDF document text
    • https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/16084d2f859a34---bavijawedepuragazivun.pdfIn PDF document text
    • http://baruraprotidin.com/assets/ckfinder/core/connector/php/uploads/files/1372558656.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ca190989bce---5638442475.pdfIn PDF document text
    • https://hoongnau.com/upload/files/nuwewasimolegolakonun.pdfIn PDF document text
    • http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/a230547bbf71591b58a5599d47a47789/12274128681.pdfIn PDF document text
    • http://www.highlandmetals.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16097866b46bae---renitufivazezunoduna.pdfIn PDF document text
    • https://weeb.nu/userfiles/file/fateweposuluvozurat.pdfIn PDF document text
    • https://www.fifatravels.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ce533d2922f---62182923718.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/f66bmddfd8e66d9jnnbu1p7s3i/dinofanilefugipoji.pdfIn PDF document text
    • https://twr1115.net/files/fckeditor/file/vagij.pdfIn PDF document text
    • http://consulcongress.it/uploads/assets/file/gotifawuxutamofesiv.pdfIn PDF document text
    • http://asfalon.com/__files/file/nipinorolowog.pdfIn PDF document text
    • http://bsp-oblspl.org/ckfinder/userfiles/files/pinejagutuwedi.pdfIn PDF document text
    • https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160be9bd238c31---xuriludofebisazizemike.pdfIn PDF document text
    • https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/15f60c50e17d99da9574106722139ca2/45451084170.pdfIn PDF document text
    • http://zagazzo.com/userfiles/file/tojiz.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=manual+tp+link+tl+wa850re+repetidorPDF link annotation
    • 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eb06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB06 10952 bytes
SHA-256: 9e42be7c3941fadf271241e6de66506c154544d4d71188985e30b539fddea0cb
font_01_sfnt_off00010495.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10495 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011ca7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11CA7 18692 bytes
SHA-256: 7f860c2976aae9827624ce1a554e41d47231bc1c5d9f057f09477b0c9e303a10

Open this report in the interactive analyzer, or submit your own file for analysis.