Malicious PDF — malware analysis report

Static analysis result for SHA-256 f5e32a8df2e28fee…

MALICIOUS

PDF

129.2 KB Created: 2022-07-26 00:31:08 +00:00 Authoring application: jaiale (via PDF Master 1.0.1) First seen: 2026-05-02
MD5: 1490b01b290f016708c5b0533b77dfeb SHA-1: 591c3f42e2e428d264f0689b605222d0420764c1 SHA-256: f5e32a8df2e28fee5019d9fdde6069b2c4134bc49d9f9ffa1e11fa3a0402e6c8
264 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

Heuristics 8

  • 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 links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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.
  • 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
  • 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://bestentrypoint.com/bestretirementspots/RU1wVHkgMjUwIFZTVCBGcmVlIERvd25sb2FkRU1/ZG93bmxvYWR8a20zZFdkdGJueDhNVFkxT0RJeE9EazROWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA...isnare/xxxxxxn?leahy=stetson PDF link annotation
    • https://nutacademia.com/wp-content/uploads/2022/07/etap_electrical_power_system_software_v125_cracked_version.pdfIn PDF document text
    • https://bali.live/wp-content/uploads/2022/07/Fifa12_Configexe_LINK.pdfIn PDF document text
    • https://kingdomuonline.com/wp-content/uploads/2022/07/Kung_Fu_Hustle_Tamil_Dubbed_Movie_Free_186.pdfIn PDF document text
    • https://ufostorekh.com/wp-content/uploads/2022/07/Ergotech_Erw300n_Driver.pdfIn PDF document text
    • https://libertytrust-bank.com/wp-content/uploads/2022/07/jaqueliz.pdfIn PDF document text
    • https://4w15.com/burnaware-professional-premium-11-2-crack-new/In PDF document text
    • http://www.hva-concept.com/winconnection-6-0-crack-install/In PDF document text
    • https://donin.com.br/advert/crack-top-cype-2012-a-parcheador-para-todos-los-programas-zip/In PDF document text
    • https://kendamahouse.com/modern-combat-5-pc-windows-10-hack-hot-download/In PDF document text
    • http://moonreaderman.com/resident-evil-4-2014-ultimate-hd-edition-reloaded-skidrow-reloaded-exclusive/In PDF document text
    • http://www.kiwitravellers2017.com/wp-content/uploads/2022/07/ARK_Survival_Evolved_Early_Access_V173_2015_PC__RePack_By_Latest_Version.pdfIn PDF document text
    • https://turbulentelevenvansissi.nl/wp-content/uploads/2022/07/Error_Loading_Library_7z_Dll_Windows_8_Usb_UPDATED.pdfIn PDF document text
    • http://southfloridafashionacademy.com/2022/07/26/download-bob-marley-legend-album-zip-top/In PDF document text
    • https://www.camptalk.org/wp-content/uploads/2022/07/Crysis_1_Windows_7_64_Bit_Crack.pdfIn PDF document text
    • https://www.sb20ireland.com/advert/artensoft-photo-collage-maker-1-2-keygen-torrent-new/In PDF document text
    • https://polskikapital.org/wp-content/uploads/2022/07/artcampro9crackfree20.pdfIn PDF document text
    • https://xn--xvaos-qta.net/wp-content/uploads/2022/07/Foxit_PDF_Editor_Crack_Plus_Serial_Key_Full_Download.pdfIn PDF document text
    • http://feelingshy.com/mortal-kombat-komplete-edition-update-v1-07-exclusive/In PDF document text
    • https://enricmcatala.com/wp-content/uploads/2022/07/melocomm.pdfIn PDF document text
    • https://wilsonvillecommunitysharing.org/i-doser-drug-files-81-doses-free-download-better/In PDF document text
    • https://nutacademia.com/wp-content/uploads/2022/07/etap_electrical_power_system_soIn PDF document text
    • https://kingdomuonline.com/wp-In PDF document text
    • https://donin.com.br/advert/crack-top-cype-2012-a-parcheador-para-todos-los-In PDF document text
    • http://moonreaderman.com/resident-evil-4-2014-ultimate-hd-edition-reloaded-skidrow-In PDF document text
    • http://www.kiwitravellers2017.com/wp-content/uploads/2022/07/ARK_Survival_Evolved_In PDF document text
    • https://turbulentelevenvansissi.nl/wp-In PDF document text
    • http://southfloridafashionacademy.com/2022/07/26/download-bob-marley-legend-album-In PDF document text
    • https://www.camptalk.org/wp-In PDF document text
    • https://www.sb20ireland.com/advert/artensoft-photo-collage-maker-1-2-keygen-torrent-In PDF document text
    • https://xn--xvaos-qta.net/wp-In PDF document text
    • https://wilsonvillecommunitysharing.org/i-doser-drug-files-81-doses-free-download-In PDF document text
    • http://bestentrypoint.com/bestretirementspots/ru1wvhkgmjuwifztvcbgcmvliervd25sb2fkru1/zg93bmxvywr8a20zzfdkdgjuedhnvfkxt0rjee9eazrowhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda...isnare/xxxxxxn?leahy=stetsonIn 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_off0000482e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x482E 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000d01a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD01A 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261