Malicious PDF — malware analysis report

Static analysis result for SHA-256 51a2b1b276947c4d…

MALICIOUS

PDF

115.3 KB Created: 2022-11-23 02:58:38 +00:00 Authoring application: cindeva (via PDF Master 1.0.1) First seen: 2026-05-06
MD5: 0c4545f72479c4c728146a0efcf1d265 SHA-1: 793b8487f4b5af070a0f2df336826521c37619eb SHA-256: 51a2b1b276947c4d00ec93b92e5545983a7249174af953b6ef976dd6d29e1ab4
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0015

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 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://rocketcarrental.com/freeloader/superintendence?ZG93bmxvYWR8VlMzTVdObWR6aDhmREUyTmpnNE56WTVOelY4ZkRJMU9UQjhmQ2hOS1NCWGIzSmtjSEpsYzNNZ1cxaE5URkpRUXlCV01pQlFSRVpk=nattiness=rella=uncommon.THVtYXBpeCBGb3RvZnVzaW9uIFY1IENyYWNrIERvd25sb2FkTHV.dooped PDF link annotation
    • http://www.affiliate1on1.com/wp-content/uploads/2022/11/Edup_Ed200_Usb_Wireless_Driver_Download_VERIFIED.pdfIn PDF document text
    • https://savosh.com/sholay-3d-movie-in-hindi-torrent-download-_top_/In PDF document text
    • https://klassenispil.dk/fsx-brazil-mega-pack-scenery-__hot__/In PDF document text
    • https://fotofables.com/logolounge-8-pdf-free-download-link/In PDF document text
    • https://susanpalmerwood.com/descargar-discografia-de-tijeritas-torrent-2021/In PDF document text
    • http://vietditru.org/advert/ashfaq-hussain-electrical-power-system-zip/In PDF document text
    • https://xtc-hair.com/diwan-e-shams-e-tabrizi-in-urdu-pdf-cracked-free/In PDF document text
    • https://www.kiochi.com/%product_category%/videostrippokertorquemadagameskeygen-newIn PDF document text
    • https://ayusya.in/sound-forge-noise-reduction-plugin-keygen-top/In PDF document text
    • https://lexcliq.com/malware-bytes-torrent/In PDF document text
    • http://ooouptp.ru/basketball-scoreboard-pro-209-crack-11-work-128170/In PDF document text
    • https://www.mycatchyphrases.com/hazrat-musa-story-in-urdu-pdf-free-verified/In PDF document text
    • https://xtc-hair.com/james-stewart-calculus-early-transcendentals-7th-edition-solutions-pdf-2/In PDF document text
    • https://ryansellsflorida.com/2022/11/23/bitdefender-total-security-2020-full-crack-license-key/In PDF document text
    • http://wolontariusz.com/advert/honeywell-care-software-download-crack-exclusive-12/In PDF document text
    • https://alexander-hennige.de/2022/11/23/artificial-academy-2-save-editor-new-download/In PDF document text
    • https://www.unitedartistsofdetroit.org/wp-content/uploads/2022/11/Mod_Pour_Debrider_Camion_Euro_Truck_Simulator_2-1.pdfIn PDF document text
    • https://1w74.com/downloadxforceupd-keygenentertainmentcreationsuite2015key/In PDF document text
    • https://wanoengineeringsystems.com/microsoft-office-2010-professional-plus-language-pack-x86-x64/In PDF document text
    • http://mauiwear.com/mastercam-x6-mu2-64bit-crack-_hot_/In PDF document text
    • http://www.affiliate1on1.com/wp-In PDF document text
    • https://www.unitedartistsofdetroit.org/wp-In PDF document text
    • https://wanoengineeringsystems.com/microsoft-office-2010-professional-plus-language-pack-In PDF document text
    • http://rocketcarrental.com/freeloader/superintendence?zg93bmxvywr8vlmztvdobwr6adhmreuytmpnne56wtvoely4zkrjmu9uqjhmq2hos1ncwgizsmtjsepsyznnz1cxae5urkpruxlcv01pqlfsrvpk=nattiness=rella=uncommon.thvtyxbpecbgb3rvznvzaw9uify1ienyywnriervd25sb2fkthv.doopedIn 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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001cb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CB1 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a49d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA49D 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261