Malicious PDF — malware analysis report

Static analysis result for SHA-256 1df9bdcc772a33c6…

MALICIOUS

PDF

116.9 KB Created: 2022-10-18 21:12:10 +00:00 Authoring application: untbert (via PDF Master 1.0.1) First seen: 2026-05-15
MD5: dbee6edac0a916bd0f94dc418f2f8287 SHA-1: 57ecb937b749bf11fe3cd2ec0befa412098ba059 SHA-256: 1df9bdcc772a33c63b00353dbb8e1423ed234a9872f6374b7e1a26d51bb51d2e
219 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

Heuristics 7

  • 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.
  • Cracked-software lure uses shortlink/download gateway critical PDF_CRACKED_SOFTWARE_SHORTLINK_LURE
    PDF visible text advertises a crack, serial number, archive, or pirated-software download and pairs it with a shortlink or encoded download gateway. This is a high-confidence social-engineering carrier for unwanted software or droppers; the PDF itself is not a parser exploit.
  • Cracked-software lure uses download-gateway redirectors high PDF_CRACKED_SOFTWARE_REDIRECTOR_LINK_FARM
    PDF contains multiple cracked-software/keygen/serial-key lure links together with long encoded download-gateway URLs or known crack-download redirector hosts. This is stronger than generic piracy vocabulary: the document is an SEO lure that funnels users through redirect/download infrastructure commonly used for adware, unwanted software, or droppers.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://thedirsite.com/fuctos.mastery?ZG93bmxvYWR8dDRBTVhoNFozQjhmREUyTmpVM016TTROREY4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk=gluteal.buffing?sensitize=SEQgT25saW5lIFBsYXllciAoVGhlIEZvcmVzdCBmdWxsIG1vdmllIGluIGhpbmRpIDcyMHAgKQSEQ PDF link annotation
    • https://ilmercatino.tv/wp-content/uploads/2022/10/kalglyn.pdfIn PDF document text
    • https://www.kndress.com/wp-content/uploads/2022/10/Lenovo_Thinkpad_Hardware_Maintenance_Diskette_Version_176_Or_Later_Download_BETTER.pdfIn PDF document text
    • https://euchacotechhealth.com/wp-content/uploads/2022/10/Photo_Art_Studio_LINK_Crack_Key_Generator.pdfIn PDF document text
    • https://earthoceanandairtravel.com/2022/10/18/swf-decompiler-crack-free-download-link/In PDF document text
    • https://mevoydecasa.es/wp-content/uploads/2022/10/welbzsol.pdfIn PDF document text
    • http://hkcapsule.com/?p=1062124In PDF document text
    • http://huntingafrica.org/wp-content/uploads/2022/10/Bajirao_Mastani_Movie_Download_PATCHED_Hd_Filmywap.pdfIn PDF document text
    • https://uerb.site/wp-content/uploads/2022/10/descargar_bubble_boy_audio_latino.pdfIn PDF document text
    • https://www.pooldone.com/autocad-2012-x64-64bit-product-key-and-xforce-keygen-64-bitl-work/In PDF document text
    • https://friengo.com/wp-content/uploads/2022/10/inventoria_stock_manager_358_keygen_27.pdfIn PDF document text
    • https://www.kndress.com/wp-content/uploads/2022/10/Lenovo_Thinkpad_Hardware_Maintenance_DisIn PDF document text
    • https://euchacotechhealth.com/wp-In PDF document text
    • http://huntingafrica.org/wp-In PDF document text
    • http://thedirsite.com/fuctos.mastery?zg93bmxvywr8ddrbtvhonfozqjhmreuytmpvm016ttrorey4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk=gluteal.buffing?sensitize=seqgt25saw5lifbsyxllciaovghliezvcmvzdcbmdwxsig1vdmlligluighpbmrpidcymhagkqseqIn PDF document text
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D9D 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000b589.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB589 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261