Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbefe64542b381b2…

MALICIOUS

PDF

88.1 KB Created: 2022-05-05 14:38:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-24
MD5: 68a809d1433f99c09e5003d84a352da4 SHA-1: a8a7f178be7d5f7e319c9030c28baf013b88803e SHA-256: cbefe64542b381b23a173ad82644f25506d7774e218a470331df0116fe94e285
211 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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 advertises pirated movie streaming/download medium PDF_PIRACY_STREAMING_LURE
    PDF rendered text advertises free full-movie streaming or download using piracy-brand names or a 'full movie + download/free/watch' intent phrase — recovered after folding the styled Unicode confusables the campaign uses to hide those keywords from plain-text detection. These are disposable SEO-spam carriers that route users to malvertising, fake-player, and scam pages; the PDF itself is inert.
  • 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://yoyep.co.za/YmrXLWy8?keyword=suplicame%20que%20pare%20pdf%20de%20mi%20casa PDF link annotation
    • https://raghuvirtrading.com/userfiles/file/zumafebesakotel.pdfIn PDF document text
    • https://tidijesugeji.weebly.com/uploads/1/3/4/7/134764535/vapowifawun_wasif_vepimev.pdfIn PDF document text
    • https://reparation-mobile.net/userfiles/file/lowatilotazeji.pdfIn PDF document text
    • http://yuhongzg.com/d/files/fufekakugixosofifun.pdfIn PDF document text
    • https://mupoveno.weebly.com/uploads/1/3/4/3/134371030/kivomowividodu.pdfIn PDF document text
    • https://febukorev.weebly.com/uploads/1/3/4/3/134325382/0d482cac7500ed.pdfIn PDF document text
    • https://aquamedicasatumare.ro/ckfinder/userfiles/files/gulineriju.pdfIn PDF document text
    • https://kupuluxipopanan.weebly.com/uploads/1/3/3/9/133999353/0feaaf.pdfIn PDF document text
    • https://togeltop.net/contents/files/1105064494.pdfIn PDF document text
    • https://jilarikogezinuv.weebly.com/uploads/1/3/0/9/130969280/jabipajup.pdfIn PDF document text
    • http://locnuocvietmy.com/Images_upload/files/76370627252.pdfIn PDF document text
    • https://filokizufotol.weebly.com/uploads/1/3/4/4/134455434/jomizivanoto.pdfIn PDF document text
    • http://rent-lease-no1.com/userfiles/file/20220322194941.pdfIn PDF document text
    • https://xajudubuk.weebly.com/uploads/1/4/1/3/141389068/4929849.pdfIn PDF document text
    • https://xuzumuja.weebly.com/uploads/1/3/1/6/131636792/suzilaz-woroxug-lexaf-rifalepojifegup.pdfIn PDF document text
    • https://refakatci.net/userfiles/file/89431787480.pdfIn PDF document text
    • https://pokumajapemen.weebly.com/uploads/1/3/4/4/134490217/9209859.pdfIn PDF document text
    • http://texnikalar.az/public/uploads/files/40866608390.pdfIn PDF document text
    • https://pesakezered.weebly.com/uploads/1/3/4/7/134729162/zuwibabikexun.pdfIn PDF document text
    • https://femupuzubefene.weebly.com/uploads/1/4/1/5/141508901/fexolufosed.pdfIn PDF document text
    • http://longarmquiltingacadamy.com/fckeditor/userfiles/file/95097500731.pdfIn PDF document text
    • https://koxoganonigowup.weebly.com/uploads/1/3/1/4/131408343/73e6bf3c1.pdfIn PDF document text
    • https://gilituparenuna.weebly.com/uploads/1/3/5/3/135341394/286912e1d6.pdfIn PDF document text
    • https://vogoniboka.weebly.com/uploads/1/3/1/0/131070279/magasilunuwaris.pdfIn PDF document text
    • https://duzejuwilana.weebly.com/uploads/1/3/4/8/134879611/5212757fbea1.pdfIn PDF document text
    • https://guxiwuwo.weebly.com/uploads/1/3/1/0/131070036/2655159.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_off0000f015.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000f015.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF015 19828 bytes
SHA-256: 496c9b478519eb2369a5033eba1f2dc8507110edc6b64aefbf34c6897ce9243e
font_01_sfnt_off0001205c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1205C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13873 10780 bytes
SHA-256: 15af8a66f3feaea151d92a9cd4745ab99a473581ce97cf865982ddf4cdd419f9