Malicious PDF — malware analysis report

Static analysis result for SHA-256 bead6f8de1cc9a17…

MALICIOUS

PDF

94.5 KB Created: 2021-06-28 23:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: fea0fa99e7ec8311652599d7fcff0567 SHA-1: 181d5715ab569c440984df1270a2caa342b9a7e5 SHA-256: bead6f8de1cc9a17306c23e1593888b91592de0f3ac214cce04d23087743c0a6
156 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised WordPress sites and disposable domains, a common tactic for phishing or distributing further malware. ClamAV detection and ML classification strongly indicate malicious intent. The file's structure and embedded URLs suggest it's designed to lure users into clicking malicious links, potentially leading to credential theft or system compromise.

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 https://archism.ru/uplcv?utm_term=good+morning+text+to+my+crush PDF link annotation
    • https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/9902a7b8f6727c262a6a1ebea9a45b43/97056038968.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/81ae51b84611f0df3f2831e8b41ba766/jivarilekewos.pdfIn PDF document text
    • http://erictex.com/ufiles/files/tazolopuluk.pdfIn PDF document text
    • http://telekommarketing.com/firme_data/files/togutadibezatuvukogapur.pdfIn PDF document text
    • https://medsplus.us/admin/images/file/vazefodedawugavamug.pdfIn PDF document text
    • http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fb1165b4b6---75825648636.pdfIn PDF document text
    • http://ourhkg.com/UPFILE/userfiles/files/35154076244.pdfIn PDF document text
    • http://totaleclipsenv.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a641313f720---waxefusikiledanekipoboj.pdfIn PDF document text
    • http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d84fc44c542---gabovifoxuv.pdfIn PDF document text
    • http://beloezoloto.ru/userfiles/file/65719005759.pdfIn PDF document text
    • http://www.danvillern.com/wp-content/plugins/super-forms/uploads/php/files/knq9v993tugdpbmiq98o58nja0/38701158247.pdfIn PDF document text
    • https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/3eqg2fq7jq7q1oof6v3cp3m69t/kagadepatapukokesolobab.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b821ea7f6---muponezig.pdfIn PDF document text
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/c4842c6d6a90dc600ff9a4a4b30b7ce3/88092755261.pdfIn PDF document text
    • http://antik-cafe-bergen.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ada423d1c7b---10928043330.pdfIn PDF document text
    • https://kalatranslation.co.uk/wp-content/plugins/super-forms/uploads/php/files/vgaos7i00uum71j8ns7mvib37i/mudagipiz.pdfIn PDF document text
    • https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/ljags74n9qt1n46nucm8h6gheq/68485185501.pdfIn PDF document text
    • http://ozona.pt/wysiwygfiles/file/9717753882.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608067f870ebd---54495680006.pdfIn PDF document text
    • https://secolink.sk/userfiles/file/peniwufukujan.pdfIn PDF document text
    • https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/f92c4a35f78baf554215608893e3caf5/57685239200.pdfIn PDF document text
    • http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/72044779153.pdfIn PDF document text
    • https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/dctnq2hhdduvg3i8jukiramd02/76653069520.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_off00011301.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11301 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00012b18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B18 10964 bytes
SHA-256: 9f2e3347870cb7e7ca3069f1d102cb2569894a605f2981c0d14e22eb70d37ddf
font_02_sfnt_off0001442f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1442F 15856 bytes
SHA-256: b606fc5526fcede6668b192a76f9360b86157787ca4287ece273168cc1e16225

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