Malicious PDF — malware analysis report

Static analysis result for SHA-256 3dde3fe29e217cd5…

MALICIOUS

PDF

84.4 KB Created: 2021-09-22 11:29:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-26
MD5: 37b59e92bb965c0bb4d340008953848e SHA-1: 3b1d80d244d1fca3a612336e5aca94f3e1ed757c SHA-256: 3dde3fe29e217cd5cc2143de0044412c9cc24b69341e986f62535a4f13165ce0
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

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://archism.ru/uplcv?utm_term=cara+memperbaiki+koneksi+internet+android PDF link annotation
    • http://elandtour.com/FileData/ckfinder/files/20210906_AE884584A35F59C0.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/0fglvsd7pgdororr2dmjslpd3s/11515741603.pdfIn PDF document text
    • https://www.webhisto.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/161408fba4271a---limasipubuvigatapume.pdfIn PDF document text
    • http://montpellier-businessplan.eu/mbp/upload/images/images/upload/ckfinder/87029194808.pdfIn PDF document text
    • https://willes-gb.com/uploads/files/202109181253172090.pdfIn PDF document text
    • http://ganan10.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16148774706fe4---xenoduzaduvoziguse.pdfIn PDF document text
    • http://uptindia.com/newsimages/file///rurilitovadamino.pdfIn PDF document text
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/67dbe0664a94ed5527feb34841550e21/nufuguwijevukinemukotuzo.pdfIn PDF document text
    • http://contactfm.be/userfiles/files/sevotopajajufok.pdfIn PDF document text
    • https://tunhuaduytan.com/upload/userfiles/files/dobadovade.pdfIn PDF document text
    • http://thermocomfort.ca/userfiles/file/jowumupebogusedu.pdfIn PDF document text
    • http://www.anjhimayath.com/upload/file/gawumaxipugiso.pdfIn PDF document text
    • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/fofofunukipumevejopisu.pdfIn PDF document text
    • http://pro-customer.de/userfiles/file/62711132074.pdfIn PDF document text
    • http://komputerzagrosze.pl/userfiles/file/xugozopamewugidajupox.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161395100870ab---56546259353.pdfIn PDF document text
    • https://bunian-co.com/other_files/File/18775734236.pdfIn PDF document text
    • http://www.jindatunnel.com/up_files/file/konunejulaxaderixit.pdfIn PDF document text
    • http://aqbnb.com/uploadfile/file/mopirekixudinuwafogipax.pdfIn PDF document text
    • https://koetec.com/home/~ptow/public_html/ckfinder/userfiles/files/mudifa.pdfIn PDF document text
    • http://www.lebedosapartotel.com/data/yukle/files/bevapebis.pdfIn PDF document text
    • http://fujavietnam.com/images/Download/tezaxitiwiwaxofor.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_off0000e74a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE74A 16880 bytes
SHA-256: d68d0e169b768318d236b3788b1d8e6b5eb0809cc68e8f1d98059809cbd02288
font_01_sfnt_off0001134c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1134C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00012b63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12B63 10772 bytes
SHA-256: b93c88137b2d0ce2e1543c4217bbb706d6df10a1efe0ac54df8a29bc93d95501