Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdc8cbaef69d5d8d…

MALICIOUS

PDF

90.6 KB Created: 2021-09-01 17:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: d51e6219cd2df5372b09efaae3a53ac5 SHA-1: 9e309cbfa3169c6e07a7e6dcdb59bb4480cf98c8 SHA-256: fdc8cbaef69d5d8d81795b77d2a4ffac547ed26ec44ebdac11a680aafcfa4338
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, many of which are hosted on compromised CMS platforms or disposable domains, suggesting a link farm designed to redirect users to malicious content. The presence of a 'wonder woman 1984 full movie download for free' lure in one URL indicates a phishing or malware distribution attempt. ClamAV detection and ML classification strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

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://www.autodepotperformancegroup.ca/wp-content/plugins/super-forms/uploads/php/files/knek6r5ri1uhdtdafdq9f3b5rb/dovitifamedunetinuturifo.pdf In PDF document text
    • https://alamansyria.com/userfiles/file/mapififubi.pdfIn PDF document text
    • https://sieuthimayphat.com/ckfinder/userfiles/files/85441480674.pdfIn PDF document text
    • https://sheenabusesandcoaches.com/userfiles/file/94695893817.pdfIn PDF document text
    • https://gpuhub.net/wp-content/plugins/super-forms/uploads/php/files/0oade8d8ci4vs2dv1grvg5cqb4/72219415389.pdfIn PDF document text
    • https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/0c69f7a77a1bfdbaeac6946f0368ed67/rewawavapi.pdfIn PDF document text
    • https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/84be2d779bc99ee1b1aa93a4bec4bb01/26037622031.pdfIn PDF document text
    • http://hnc2.com/userfiles/file/rilodami.pdfIn PDF document text
    • http://equipociclistaugeraga.com/ciclistas/userfiles/file/87197923222.pdfIn PDF document text
    • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/9d33d57677b87671c324bd98f2f22f57/wuwebogumozin.pdfIn PDF document text
    • http://hifitness.hu/userfiles/file/rabodamigelapesetokulexiw.pdfIn PDF document text
    • https://visionbrindes.com/admin/fckeditor/userfiles/file/buwawitutep.pdfIn PDF document text
    • http://slanfusa.org/clients/47225/File/90624399801.pdfIn PDF document text
    • https://dogathermalhotel.com/resimler/files/govezasajiworotuwol.pdfIn PDF document text
    • https://typeone.com.my/ckfinder/userfiles/files/11422270429.pdfIn PDF document text
    • https://faresaldabbous.com/uploads/files/razanideweba.pdfIn PDF document text
    • http://osullivanspressurewashing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecdbb23855---57631067538.pdfIn PDF document text
    • http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/7s22qkosuqu4186eus3f635st2/85977630516.pdfIn PDF document text
    • https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/4160020cc3a0230e208e53d8ab4a185b/61882146694.pdfIn PDF document text
    • http://broadviewlibrary.org/uploaded_bvlib/file/37416089962.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/16070b25f8d39a---69490381492.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160e6a1042f993---dulasiga.pdfIn PDF document text
    • http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/160ae158f1bf5f---nebadajibanidazadud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=wonder+woman+1984+full+movie+download+for+freePDF link annotation
    • http://lovewhereyoulv.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/7aeb4ec1dcc86a12607390981e09fe74/55596738078.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_off0000fa76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA76 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011288.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11288 18624 bytes
SHA-256: 31a683e7ad70e4327d4f195fc70fa4f402e799e0a3c7e4679b33a67d59d17c9d
font_02_sfnt_off00014256.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14256 11000 bytes
SHA-256: 542d1311860721aa5ce7feb8eddfd0e9328c8d889eee45cdf2aac4830906eb7c