Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ccd27698ee6b087…

MALICIOUS

PDF

89.1 KB Created: 2021-06-27 23:05:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 944611b08b2b92cf627c502c4687e8a1 SHA-1: 97775522bb54a26375c8c4c2ad8c2a7ec8ac222d SHA-256: 3ccd27698ee6b087660559c69c652040e101252988f11c8f2966cd470d274386
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, specifically as a phishing trojan. It contains numerous external links, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The embedded URLs and the nature of the heuristics indicate an attempt to lure users to external content, likely for phishing or further malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://oniceh.ru/uplcv?utm_term=how+to+reduce+size+of+pdf+in+macbook PDF link annotation
    • http://tuzvedo.hu/elemek/file/91275414888.pdfIn PDF document text
    • http://mobilesamara.com/img/files/file/jekerur.pdfIn PDF document text
    • http://paintingservicesonline.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160ae4a9fd682e---diwelexukekakes.pdfIn PDF document text
    • https://action-roofing.com/wp-content/plugins/super-forms/uploads/php/files/cced5dd70f5399aeb8b5d598ee258e66/tutogetizorafujamagarizi.pdfIn PDF document text
    • https://briljant-maleri.se/UserFiles/files/37988355294.pdfIn PDF document text
    • https://hmv.ir/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c39537b33---petinaxiwafuxoxigowi.pdfIn PDF document text
    • https://beautyyaurient.com/editor_upload/file/juwapipubiserobebupadum.pdfIn PDF document text
    • https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/qd2nb0gklo8tcdacpc43056bvk/zoxufubenijiselowunix.pdfIn PDF document text
    • http://ankurgroups.com/userfiles/file/53069167180.pdfIn PDF document text
    • http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a84a3de0755---musepenamos.pdfIn PDF document text
    • http://allnatureint.com/userfiles/file/45609140496.pdfIn PDF document text
    • https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609918b77f012---33701138530.pdfIn PDF document text
    • http://industrialdevices.in/uploads/jazoxipeparefejo.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/cmh862tv5bj4as4kejq0r3mfj1/kevubimegu.pdfIn PDF document text
    • http://vstarmp.cn/upload/files/20210614_095249.pdfIn PDF document text
    • https://amkboiler.com/wp-content/plugins/super-forms/uploads/php/files/mq7r7be78sa2ekgutdbcperain/76604501054.pdfIn PDF document text
    • http://koslita.eu/ckfinder/userfiles/files/dagumowa.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/25b28ca82387db130ced6e18cafe48d1/jojapawotugokogijorififoz.pdfIn PDF document text
    • http://akcjonariusz.com/UserFiles/file/55484047977.pdfIn PDF document text
    • http://boulderdivorcelaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609859063b14c---13425421864.pdfIn PDF document text
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607acc6970363---dolodibuzarejapip.pdfIn PDF document text
    • https://noukos.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160846767d2fdd---kerowovomadowereb.pdfIn PDF document text
    • https://angelsstaff.com/uploads/file/67142973490.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_off0000f65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E72 11204 bytes
SHA-256: eb70a986f7d1c6d27345b9dd81476364fde26f12484cc92112a671ea278bcc0a
font_02_sfnt_off00012879.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12879 17660 bytes
SHA-256: 4f0061970cc7868a88b11b5f02f14f3c3dd896f9c18ac668a7256ed36465cb8c

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