Malicious PDF — malware analysis report

Static analysis result for SHA-256 88aa926d76e5bdf8…

MALICIOUS

PDF

125.3 KB Created: 2022-09-09 11:14:47 +00:00 Authoring application: zebuakyl (via PDF Master 1.0.1) First seen: 2024-01-03
MD5: 28d97237909162ac02e9cfca5545ac41 SHA-1: 797d215e185d13239ef1f4fe6347476527ff57f2 SHA-256: 88aa926d76e5bdf8640ac1d78cb8c26a92d862cd157d47d714e39c510de051ff
174 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

Heuristics 6

  • 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.
  • 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://dawnloadonline.com/ZG93bmxvYWR8TngyTnpSNFpueDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/alajuela/arican.YXBpIDYxNCA1dGggZWRpdGlvbgYXB.bonier.blamers/blitz/frosted PDF link annotation
    • https://iscs-conference.com/yayatimarathikadambaridownloadpdf-__exclusive__/In PDF document text
    • https://inmobiliaria-soluciones-juridicas.com/2022/09/d16-group-punchbox-1-0-6-vsti-aax-au-x64-serial-key-keygen-freeIn PDF document text
    • https://omniumy.com/wp-content/uploads/2022/09/taitbeno.pdfIn PDF document text
    • https://glacial-peak-70079.herokuapp.com/Acteck_Agj3400_Driver_Download.pdfIn PDF document text
    • https://sheltered-earth-97073.herokuapp.com/Death_Row_Uncut_Too_Gangsta_For_TvSnoopDrdre2pacDVDrip_By_Fa.pdfIn PDF document text
    • https://www.ozcountrymile.com/advert/autocadlt2011xforce2010x32exeiso-new/In PDF document text
    • https://kmtu82.org/telecharger-autocad-2010-gratuit-avec-crack-64-upd/In PDF document text
    • https://desolate-escarpment-79201.herokuapp.com/The_Taare_Zameen_Par_Full_Movie_In_Hindi_Hd_Download.pdfIn PDF document text
    • http://applebe.ru/2022/09/09/keygen-bulkr-pro-license-key-28-hot/In PDF document text
    • https://www.fairlabels.net/narutomoviethelastenglishsubrepack-download/In PDF document text
    • http://noverfood.com/wp-content/uploads/2022/09/Hptuners_Vcm_Suite_Serial_BEST_Keygen.pdfIn PDF document text
    • http://subsidiosdelgobierno.site/?p=25899In PDF document text
    • https://clusterenergetico.org/2022/09/09/boris-fx-title-toolkit-1-0-serial-numberl/In PDF document text
    • http://www.strelkabrno.cz/advert/din-16742-pdf-37/In PDF document text
    • https://ayusya.in/meldaproduction-mtotalbundle-v810-inclpatch-and-keygenr2r-hot/In PDF document text
    • https://hidden-ridge-58561.herokuapp.com/Construction_Simulator_2015_Liebherr_A_918_Free_Download_add.pdfIn PDF document text
    • https://islandcremations.com/wp-content/uploads/2022/09/Bfme2_Rotwk_V201_Nocd_Crack.pdfIn PDF document text
    • http://insenergias.org/?p=78144In PDF document text
    • https://floating-reef-46460.herokuapp.com/trysreat.pdfIn PDF document text
    • http://resistanceschool.info/?p=442222In PDF document text
    • https://inmobiliaria-soluciones-juridicas.com/2022/09/d16-group-In PDF document text
    • https://sheltered-earth-97073.herokuapp.com/Death_Row_Uncut_Too_Gangsta_For_In PDF document text
    • https://desolate-escarpment-79201.herokuapp.com/The_Taare_Zameen_Par_Full_MIn PDF document text
    • http://noverfood.com/wp-In PDF document text
    • https://hidden-ridge-58561.herokuapp.com/Construction_Simulator_2015_Liebherr_In PDF document text
    • https://islandcremations.com/wp-In PDF document text
    • http://dawnloadonline.com/zg93bmxvywr8tngytnpsnfpuedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/alajuela/arican.yxbpidyxnca1dgggzwrpdglvbgyxb.bonier.blamers/blitz/frostedIn 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_off0000400f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x400F 84532 bytes
SHA-256: 4b87b536c687a015e3fbe2f42b097abafda73abf7e8a41713049e505ad4c47a1
font_01_sfnt_off0000c812.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC812 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261