Malicious PDF — malware analysis report

Static analysis result for SHA-256 382f1c37d10db5cf…

MALICIOUS

PDF

89.3 KB Created: 2021-07-05 14:18:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 8910e863a6fa2e85b51b3cff03c6d5ed SHA-1: 46de4cd3c381b3ba72cf9db9568cb6223e399e3c SHA-256: 382f1c37d10db5cfda990c6b038215a905f379af00e73fbe50ef0bfcbe30f110
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous links pointing to websites hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery via these external links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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 http://bartuceviri.com/userfiles/file/fibofovaxifedusa.pdf In PDF document text
    • https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/95ffb81b81efede156ab15bf2628adf5/sadatopuduxarovafokusobet.pdfIn PDF document text
    • http://ibb-online.ru/f/file/zunisizinaveni.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ee1d4128b0---texovusuzibexe.pdfIn PDF document text
    • http://kulturazebrak.cz/userfiles/telawowarodinaxaw.pdfIn PDF document text
    • http://precedent.by/_newsite/images_from_html_editor/file/zuvuzaxodutesomodagoli.pdfIn PDF document text
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160705ebf61a17---gibapejukanukupimivagab.pdfIn PDF document text
    • https://k2salight.com/wp-content/plugins/super-forms/uploads/php/files/72df1e11380ae2db85d9544f8fb8c2bf/80697159325.pdfIn PDF document text
    • https://sudhirsachdevaclasses.com/ci/userfiles/files/nagurakemajokawawurisu.pdfIn PDF document text
    • http://extreamtuning.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1609ba94c5feed---lifonekixijujujaxumizo.pdfIn PDF document text
    • http://nandeestationery.com/userfiles/files/wufuvokebut.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/d0106c86f062fc703d4ba0d3a86a0974/87892849209.pdfIn PDF document text
    • http://www.alex-vasilkov.ru/images/wisdom/file/51455968292.pdfIn PDF document text
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160881aea1a9c8---mopakalenutemojanuwo.pdfIn PDF document text
    • http://93564497.com/userfiles/sokelovamoxoba.pdfIn PDF document text
    • http://yaqeen-eg.com/userfiles/file/tumatelo.pdfIn PDF document text
    • https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16079df5a5d4b6---dakezozoludex.pdfIn PDF document text
    • https://transport-vehicules.fr/userfiles/file/20317813933.pdfIn PDF document text
    • https://stefandes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c9059913d5---vudowonavazegozikovuna.pdfIn PDF document text
    • https://fetogram.com/images/upload/files/sosogivokoxeb.pdfIn PDF document text
    • https://24emk.ru/ckfinder/userfiles/files/80761396549.pdfIn PDF document text
    • http://banghetretruc.com/media/ftp/file/70871224281.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/c1rrmrbo6aba3l3htv4bbc18e3/55860330618.pdfIn PDF document text
    • https://www.movingwithmagna.com/wp-content/plugins/super-forms/uploads/php/files/8955cfc28630921a6a8519677c31b7a1/purudutupisigado.pdfIn PDF document text
    • http://altinay-law.com/images/file/zunufuzumaxove.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=maths+shape+puzzles+with+answersPDF 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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f8dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DD 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off000110ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110EF 17836 bytes
SHA-256: 93b0e4e60a2677fde02dcd1441ba9ddd2ddcff4593ad03169bb0ef34d5b3dfc7
font_02_sfnt_off00013fc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FC9 10468 bytes
SHA-256: 9cdc2d731b59f989d62eb113bf7c90e8455d0a1a8b9cc2432771d1b464997918