Malicious PDF — malware analysis report

Static analysis result for SHA-256 25c01c8f8ec449d7…

MALICIOUS

PDF

76.4 KB Created: 2022-04-04 22:34:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-01
MD5: 602dfebcaf3a66d3efb09160b21bfbcf SHA-1: 834b75d946fb406268570dbed7fd2471ca73d55a SHA-256: 25c01c8f8ec449d752973ddf6fa07874614e8ee1cc15b565ca53c9fce5b1bccd
211 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a lure to watch a movie online, but its primary function appears to be a link farm, directing users to numerous other PDF files hosted on disposable domains. This technique is often used for SEO manipulation or to distribute further malicious content, making the initial PDF a potential dropper or redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://favadela.weebly.com/uploads/1/3/1/0/131070298/rawezumimesazogebevi.pdf In PDF document text
    • https://fruitssupplier.com/app/webroot/img/files/tokogixivi.pdfIn PDF document text
    • http://yanlixin.com/UserFiles/file///nomowozoxujege.pdfIn PDF document text
    • https://fulojexerewo.weebly.com/uploads/1/3/5/3/135345176/6802970.pdfIn PDF document text
    • https://falototadapi.weebly.com/uploads/1/3/3/9/133989324/c0c0e.pdfIn PDF document text
    • https://wuxinaruniluxod.weebly.com/uploads/1/3/4/8/134882591/31ad0391ad94.pdfIn PDF document text
    • http://endustriyelkiralama.com/wp-content/plugins/super-forms/uploads/php/files/rv7jbu4stm80t76euj9ed87qmm/vamokaz.pdfIn PDF document text
    • http://basyapiemlak.com/yukleme_klasoru/userfiles/file/69820481676.pdfIn PDF document text
    • https://ideylia.fr/uploads/file/verik.pdfIn PDF document text
    • https://12shio2.com/contents/files/44418880169.pdfIn PDF document text
    • https://guvavibigedufos.weebly.com/uploads/1/3/4/8/134855984/ce206db8b.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1623c8a96a3647---35359424021.pdfIn PDF document text
    • https://506hlapeta.com/files/file/kanijebuxupisa.pdfIn PDF document text
    • http://valleytechltd.com/assets/ckeditor/kcfinder/upload/files/gojab.pdfIn PDF document text
    • http://www.masozilina.sk/ckfinder/userfiles/files/87355074356.pdfIn PDF document text
    • https://robustbrakes.com/administrator/imagetemp/file/jiwujezoguloxuxefujogo.pdfIn PDF document text
    • https://bearings.vn/images/ckeditor/files/79126077247.pdfIn PDF document text
    • https://adm.ativo.com/js/kcfinder/upload/files/34791248966.pdfIn PDF document text
    • https://rasabukogetak.weebly.com/uploads/1/3/1/6/131606550/c37f54aea.pdfIn PDF document text
    • http://isdoor.ru/uploads/files/13922643985.pdfIn PDF document text
    • http://riverside.tw/user_upload/files/94444436482.pdfIn PDF document text
    • https://cmsmda.neotebet.de/uploads/all/potujeroti.pdfIn PDF document text
    • https://tupuzozen.weebly.com/uploads/1/3/4/4/134403730/sekiwukibegeka_mexopuvojowu.pdfIn PDF document text
    • https://bike-accessories.supersites.gr/content/ckfinder/files/wutadevuzawafoter.pdfIn PDF document text
    • https://ragaz.co.za/YmrXLWy8?keyword=watch%20diary%20of%20a%20wimpy%20kid%20the%20long%20haul%20movie%20online%20freePDF 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 extracted file (font_00_sfnt_off0000c491.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000c491.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c491.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC491 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000dca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCA3 16928 bytes
SHA-256: 95387be4e0792940d6359c2e1ffdc8535a7477ad5e4f1847b0b9e23e1ea96198
font_02_sfnt_off000108d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108D6 11348 bytes
SHA-256: e244804157cb5ea738473c17d0f198765cbfb77e760a964955e163ef9413b6f2