Malicious PDF — malware analysis report

Static analysis result for SHA-256 74d0a5b2b9579e5d…

MALICIOUS

PDF

98.1 KB Created: 2021-07-14 00:45:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-13
MD5: 85dfb05fda235e38597c0f0a3f0d1295 SHA-1: a74dd54ef93463811045924cedebed3e8fd40879 SHA-256: 74d0a5b2b9579e5d2e45b61c0d0a7b4fca784f2ae981aa8b2dfe1b44856f8701
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9800

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://paddockj.com/user_data/editor/ckfinder/core/connector/php/upload/files/domovanomozaritan.pdf In PDF document text
    • https://neoville.ru/wp-content/plugins/super-forms/uploads/php/files/56483524302b92f0017029adc8d66e60/tifegujonowixejazoz.pdfIn PDF document text
    • https://easy2ticket.com/upload/files/55528886384.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/pn36cjbitacn51vsh9rhd0jkc4/gakekolotoratufowoniriv.pdfIn PDF document text
    • https://x-software.cz/data/file/64613528087.pdfIn PDF document text
    • http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a15f91d47b3---zigekoxaduwuxakirapavit.pdfIn PDF document text
    • https://kimansion.com/uploads/file/zikaloburasu.pdfIn PDF document text
    • http://webscape.co.bw/wp-content/plugins/formcraft/file-upload/server/content/files/16073e38a01b14---40378215998.pdfIn PDF document text
    • http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2c73ead026---78787867637.pdfIn PDF document text
    • https://emmaushuis.org/pages/21515484140.pdfIn PDF document text
    • http://soupworld.de/upload/file/86241998013.pdfIn PDF document text
    • https://thesmithgrouphouston.com/wp-content/plugins/super-forms/uploads/php/files/7d1a44739c1b4b50b013d539ed471d29/53883581017.pdfIn PDF document text
    • http://travelport.pl/userfiles//file/96524974592.pdfIn PDF document text
    • https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dbf27be5a88.pdfIn PDF document text
    • http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160954f8840ef6---90613837365.pdfIn PDF document text
    • https://anpheatingandac.com/nbloom/fckuploads/file/31981412443.pdfIn PDF document text
    • http://www.rec39.ru/wp-content/plugins/super-forms/uploads/php/files/389f5333490e41477a37e45b452d6c04/winasopikagizakisisol.pdfIn PDF document text
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9b493cae6---17180682676.pdfIn PDF document text
    • https://3dreamvr.com/wp-content/plugins/super-forms/uploads/php/files/2f3e7c1984d10733feef2a32e916abaa/99213619065.pdfIn PDF document text
    • http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf3adcaf57e---tejowonekuretigepa.pdfIn PDF document text
    • http://accessibilite-salle-eau.com/ckfinder/userfiles/files/xatuvavunemurof.pdfIn PDF document text
    • https://carpanea.it/wp-content/plugins/super-forms/uploads/php/files/77f27bb27d8ebbbdda4578af5fa37381/zuxuboborulepifeposogada.pdfIn PDF document text
    • http://philippinesroadshow.com/wp-content/plugins/super-forms/uploads/php/files/5832ecc321e0f49798de64e17ba2831f/penugakititaxesotob.pdfIn PDF document text
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/a08c84f506ef577f51ae0fe1ef49a624/wezelanufilufo.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160aa3f6c75d50---kepodomanerilog.pdfIn PDF document text
    • https://suavitinhtannha.net/upload/files/62400674770.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=racism+in+gender+inequalityPDF 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_off00011978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11978 18376 bytes
SHA-256: 5602cd2761ebeb675513c66d576047f1ce297dbdff134eda8d4a0d544bdfc949
font_01_sfnt_off000149ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x149BA 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000161d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x161D1 11000 bytes
SHA-256: f06773709dceafad6a710920550c64d9bb3c3d728c5ee6ba4b5231e07440b86c