Malicious PDF — malware analysis report

Static analysis result for SHA-256 88bb9f56d13542c2…

MALICIOUS

PDF

76.6 KB Created: 2022-04-01 08:35:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-02
MD5: dcabc9cd252f079357466d58e91d4397 SHA-1: d90600008f4c3ce5fde01de615a86c2635fe54b2 SHA-256: 88bb9f56d13542c27bfc38ff0c8d1141a1881bb0c4830e797af79a8b39a06857
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9928

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://mifuj.co.za/YmrXLWy8?keyword=desde%20el%20jardin%20pelicula%20online PDF link annotation
    • http://skrutit-probeg.ru/upload_picture/file/zutesam.pdfIn PDF document text
    • https://zukepuroxile.weebly.com/uploads/1/3/4/7/134746995/lovetajazad_fakamuvamasex_gosodewaxot_desaxafuterab.pdfIn PDF document text
    • https://happyfun.tw/uploads/files/202203241024468447.pdfIn PDF document text
    • https://www.webursitet.ru/kcfinder/upload/files/87728617984.pdfIn PDF document text
    • https://zoxopabetil.weebly.com/uploads/1/3/1/1/131163737/97e0e17.pdfIn PDF document text
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16242079b0828c---41082257943.pdfIn PDF document text
    • http://dc-258f3497aee0.waxparadise.pl/userfiles/file/85879578490.pdfIn PDF document text
    • https://dokipodaj.weebly.com/uploads/1/3/4/3/134306773/junuxapazifanotor.pdfIn PDF document text
    • http://t-cso.com/upload/file_folder/file/33515089098.pdfIn PDF document text
    • https://contabil-fiscal.ro/mm/file/vagesupizavor.pdfIn PDF document text
    • http://baltyk.recykling-rejs.pl/imgturysta/files/66405153469.pdfIn PDF document text
    • https://jyapa.com/jhuoyue/uploadfiles/75278519445.pdfIn PDF document text
    • https://yogaspotny.com/userfiles/file/33680330689.pdfIn PDF document text
    • https://equalitas.es/userfiles/file/kukagejut.pdfIn PDF document text
    • http://alexlunacoach.com/img/editor/file/7946769550.pdfIn PDF document text
    • https://vamowupa.weebly.com/uploads/1/3/4/4/134435661/6147656.pdfIn PDF document text
    • https://so-photo.hu/images/fck/files/xivaseligitogenoxilome.pdfIn PDF document text
    • https://www.pmayassam.in/assets/kcfinder/upload/files/3820889642.pdfIn PDF document text
    • https://tifutijije.weebly.com/uploads/1/3/2/6/132682998/bafuziser-gawibadig-jodarofizaj-zuvinab.pdfIn PDF document text
    • https://upsoul.com.br/assets/kcfinder/upload/files/21903065483.pdfIn PDF document text
    • https://vunakeba.weebly.com/uploads/1/3/4/6/134623580/2c6a252f14bf609.pdfIn PDF document text
    • https://coloreverything.love/wp-content/plugins/super-forms/uploads/php/files/3273d7dcdca62556ca1e02358451a207/tirefiriraxemiv.pdfIn PDF document text
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/1f04a3baea2577ef1af85eaf1126c1c7/wunorelalusoralufuka.pdfIn PDF document text
    • https://sanokigoj.weebly.com/uploads/1/3/4/8/134863934/fupedef-kobiduxudem.pdfIn PDF document text
    • https://pibemalogodozod.weebly.com/uploads/1/3/2/6/132681910/poduni.pdfIn PDF document text
    • https://valuzobuxile.weebly.com/uploads/1/3/2/7/132711949/pigunikesoxa_gojojikita_tixumiluwiko_losapigova.pdfIn PDF document text
    • https://ramipataxeki.weebly.com/uploads/1/3/4/4/134483057/2069b6a2dd252f.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 extracted file (font_00_sfnt_off0000c2c8.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c2c8.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c2c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2C8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dadf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDADF 10640 bytes
SHA-256: 6eac9bf089f513367350a4d4ce10b9d356007005fc80f8a7452e6ba68bd6c301
font_02_sfnt_off0000f33e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF33E 18292 bytes
SHA-256: 25fa294ee3ae00ccce162b71783cfc029ae476a55af87ff9977c76e5ebdff145