Malicious PDF — malware analysis report

Static analysis result for SHA-256 2243c7a398b4e33a…

MALICIOUS

PDF

112.5 KB Created: 2022-07-27 15:38:09 +00:00 Authoring application: hibnana (via PDF Master 1.0.1) First seen: 2026-04-22
MD5: 60d534019b4eb3bf5fe92db33b36fd80 SHA-1: ae9186d559997e6d92172486e29b946117be0cfd SHA-256: 2243c7a398b4e33a28d4ad3b683e4660d53d5be1c181a876ad684e16c181bedd
204 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0012

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 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://esecuritys.com/ZG93bmxvYWR8aTFCWnpGMWFueDhNVFkxT0RJeE9UUTNNM3g4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/coachman/breastbone=dcse&quarterfinal=c3BzcyAxMS41IGZvciB3aW5kb3dzIDcgNjQgYml0c3B.diabetesjournals PDF link annotation
    • https://deradiobingo.nl/wp-content/uploads/2022/07/Pixel_Game_Maker_MV_MV_crack_TOP_Serial_Key.pdfIn PDF document text
    • https://divingpath.com/wp-content/uploads/2022/07/Download_software_tes_mmpi.pdfIn PDF document text
    • https://fitadina.com/2022/07/27/mahabharat-chopra-1998-dvdrip-all-link/In PDF document text
    • http://www.7daystobalance.com/advert/assassins-creed-rogue-dlc-skidrow-crack-verified/In PDF document text
    • https://brookstondesigns.com/wp-content/uploads/2022/07/Logitrace_V14_Crack_WORK_Et_Serialrar.pdfIn PDF document text
    • http://livesextransvestite.com/?p=11538In PDF document text
    • https://energypost.eu/wp-content/uploads/2022/07/Engelmann_Media_Photomizer_Scan_2014113_Multi__Crack_Free_WORK_Download.pdfIn PDF document text
    • https://bizzclassified.us/advert/best-seo-company-in-noida-seo-services-agency-in-noida/In PDF document text
    • https://cambodiaonlinemarket.com/winrar-5-20-final-x86-x64-incl-key-atom-new/In PDF document text
    • https://williamssyndromecincinnati.org/2022/07/27/crack-data-glitch-2-0-1-link/In PDF document text
    • https://best-housing.nl/wp-content/uploads/2022/07/blaseld.pdfIn PDF document text
    • https://diontalent.nl/2022/07/27/grand-theft-auto-v-v1-0-505-2-inc-dlcs-repack-by-corepack-re-upload/In PDF document text
    • https://thetopteninfo.com/wp-content/uploads/2022/07/Sardu_3_0_Keygen_Torrent.pdfIn PDF document text
    • http://www.kitesurfingkites.com/protel-dxp-2004-full-version-top/In PDF document text
    • https://dwfind.org/r-kelly-chocolate-factory-album-zip/In PDF document text
    • https://thebestmale.com/smart-choice-1-workbook-answer-key-audio-leopard-hitler-verified/In PDF document text
    • https://fam-dog.ch/advert/3dsom-pro-image-to-3d-verified/In PDF document text
    • https://biodashofficial.com/hd-online-player-hollow-man-dubbed-from-english-in-hi-high-quality/In PDF document text
    • http://brainworksmedia.in/?p=8214In PDF document text
    • https://paillacotv.cl/advert/r2b-return-to-base-720p-download-links-__full__/In PDF document text
    • https://deradiobingo.nl/wp-In PDF document text
    • https://brookstondesigns.com/wp-In PDF document text
    • https://energypost.eu/wp-content/uploads/2022/07/Engelmann_Media_Photomizer_Scan_2014113_MIn PDF document text
    • https://diontalent.nl/2022/07/27/grand-theft-auto-v-v1-0-505-2-inc-dlcs-repack-by-corepack-re-In PDF document text
    • http://esecuritys.com/zg93bmxvywr8atfcwnpgmwfuedhnvfkxt0rjee9uutnnm3g4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/coachman/breastbone=dcse&quarterfinal=c3bzcyaxms41igzvcib3aw5kb3dzidcgnjqgyml0c3b.diabetesjournalsIn 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_off00001066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1066 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009852.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9852 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261