Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f2aeb64604ba896…

MALICIOUS

PDF

129.2 KB Created: 2021-06-27 00:45:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: e4a0a75c3c86476ef1ac11662113e0cf SHA-1: a7dad1197e81065a59285dbec4ea2449a5d48ebd SHA-256: 9f2aeb64604ba896ea947882d83f5a1d299503d04e025b0d2eed6433a87a1987
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, indicating a link farm designed to lure users to potentially malicious sites. ClamAV detection and ML classification confirm the malicious nature of the PDF. The primary attack pattern involves directing users to external resources via these links, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9850

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 https://synerhu.ru/uplcv?utm_term=what+does+poochyena+evolve+into PDF link annotation
    • http://a2itsolutions.com/chop/multimedia/userfiles/file/46168423512.pdfIn PDF document text
    • http://training-solutions.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1609853a538a37---74533892384.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c31681884e2---65733516289.pdfIn PDF document text
    • https://nepalimodelagency.com/userfiles/file/kutugezamav.pdfIn PDF document text
    • https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/9fa52ec578d7a868ba1cead5fe5fd1ed/gomabisep.pdfIn PDF document text
    • https://brylka-kfz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7b5fa6da7---refuwagewuzarovugakike.pdfIn PDF document text
    • http://peaceinsrilanka.lk/userfiles/file/44243355168.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607adf8a97005---84823876327.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee815db66a---jamukofaw.pdfIn PDF document text
    • https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/85263928605.pdfIn PDF document text
    • https://wholisticvibrations.com/wp-content/plugins/super-forms/uploads/php/files/f99268a09151755f9ae817069db57fcb/8335573891.pdfIn PDF document text
    • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2c9a95d000---gifewefupujenufusomuguti.pdfIn PDF document text
    • https://www.ezhealthcheck.com/wp-content/plugins/super-forms/uploads/php/files/r8rk31sfrbgo3o5tpup4k5haqo/85534514487.pdfIn PDF document text
    • http://skyfestival.kr/ckfinder/userfiles/files/55718935257.pdfIn PDF document text
    • https://sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/160c604fb39b6f---42522790627.pdfIn PDF document text
    • http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160a438ced4e65---46029468719.pdfIn PDF document text
    • http://associacaoguainumbi.org.br/wp/wp-content/plugins/formcraft/file-upload/server/content/files/16086844cbe244---97449047578.pdfIn PDF document text
    • http://www.pointcookelectrician.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608011e304109---44486382688.pdfIn PDF document text
    • http://allasclub.com/campannas/file/8837596635.pdfIn PDF document text
    • https://www.dentaltaxpros.com/wp-content/plugins/super-forms/uploads/php/files/e5d184e2eaded1c084247d08b7b08e4f/wipujeginufuz.pdfIn PDF document text
    • http://smolensk-bakaleya.ru/userfiles/file/movilifizigepetozuvadi.pdfIn PDF document text
    • https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/k416s0bmgasv8pk077b3skhpho/lubabiju.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_off00015ab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15AB8 11476 bytes
SHA-256: 0446f79f130274174450cdccce1ac3fa8aaeef30116716dbadbc7780920cea0a
font_01_sfnt_off00017e27.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17E27 16132 bytes
SHA-256: eb83fb48a2f60ac59fad768156047f025764cad4052c8f34695a9c8dd2456ad8
font_02_sfnt_off00019399.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19399 10684 bytes
SHA-256: d2e4115860225da3b7c53ac3682bb32c7a8d0eb00e3bd8e3ad3a985974a2de0e
font_03_sfnt_off0001ac0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1AC0D 19432 bytes
SHA-256: 0bf212d8eec68ee0615fbcd66e0b0287d1541c62b81e56188bf2c2da7d286eda
font_04_sfnt_off0001dd03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1DD03 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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