Malicious PDF — malware analysis report

Static analysis result for SHA-256 4507decd59468a0d…

MALICIOUS

PDF

129.6 KB Created: 2022-07-08 02:13:46 +00:00 Authoring application: ysobchar (via PDF Master 1.0.1) First seen: 2026-04-25
MD5: 01831a3895458c190c05706ae4b0ad6b SHA-1: 19de745b94767448ca1a0da46db2d6561b4510a8 SHA-256: 4507decd59468a0d8dfcf544625128bafe9412826616224bd27ab75ff69de4ee
174 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0092

Heuristics 6

  • 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.
  • 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/marnier.broadened/gore?loctite&splitters=ZG93bmxvYWR8OVM3WTJaMmRIeDhNVFkxTnpFNE5qazFOWHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA&U3RlYW0gTW9uZXkgQWRkZXIgdjEuNCBTdGVhbSBXYWxsZXQgSGFjawU3R=surprising PDF link annotation
    • https://lustrousmane.com/driver-dispositivo-base-del-sistema-sony-vaio-vgn-nw215t-verified/In PDF document text
    • https://infinitynmore.com/2022/07/07/everest-ultimate-edition-v5-0-working-serials-serial-key-keygen-best/In PDF document text
    • http://scamfie.com/?p=31005In PDF document text
    • https://shobaddak.com/wp-content/uploads/2022/07/BioWindows_XP_VistaMAX_77_Sp4_Appz_Spanish_Keygen_EXCLUSIVE.pdfIn PDF document text
    • https://www.netcolf.it/wp-content/uploads/2022/07/benyhey.pdfIn PDF document text
    • http://crochetaddicts.com/upload/files/2022/07/g3g1BKZuAMqDpivNSvGP_08_dc45f9e2a3256d7a019ae33c4fd672c5_file.pdfIn PDF document text
    • https://paydayplus.net/system/files/webform/jawdham408.pdfIn PDF document text
    • http://movingservices.us/?p=40645In PDF document text
    • https://hitmizik.com/dzsoft-perl-editor-5-8-9-cracked-verified/In PDF document text
    • https://fumostoppista.com/windows-7-loader-162-by-hazar-orbit30rar-repack/In PDF document text
    • https://fuckmate.de/upload/files/2022/07/WzZSwcqzO9bZiWCRgMSz_08_7c61f7d2481a4263458e8432c536a15a_file.pdfIn PDF document text
    • http://theludwigshafen.com/?p=6552In PDF document text
    • https://teko.my/upload/files/2022/07/ddxpQ5xqGRfhrOw4jgpb_08_7c61f7d2481a4263458e8432c536a15a_file.pdfIn PDF document text
    • https://mugvn.s3.amazonaws.com/upload/files/2022/07/hzMzkIe1x3fBLUbvBmMx_08_dc45f9e2a3256d7a019ae33c4fd672c5_file.pdfIn PDF document text
    • https://saudils.com/wp-content/uploads/2022/07/Tamil_Dubbed_Hollywood_Movies_Free_Download_720p.pdfIn PDF document text
    • http://43gear.com/?p=100042378In PDF document text
    • https://www.twp.ferguson.pa.us/sites/g/files/vyhlif576/f/styles/news_image_teaser/public/news/pages_from_bos_agenda_packet_05-16-2022_with_links.pdfIn PDF document text
    • https://greenteam-rds.com/bartnitzky-sprachunterricht-heute-pdf-15/In PDF document text
    • https://pra-namorar.paineldemonstrativo.com.br/upload/files/2022/07/VNqceeZtoCiwBYcYFtou_08_dc45f9e2a3256d7a019ae33c4fd672c5_file.pdfIn PDF document text
    • https://irabotee.com/wp-content/uploads/2022/07/Film_Guru_Bangsa_Tjokroaminoto_Download_Movies_BEST.pdfIn PDF document text
    • https://infinitynmore.com/2022/07/07/everest-ultimate-edition-v5-0-working-serials-serial-key-In PDF document text
    • https://shobaddak.com/wp-In PDF document text
    • http://crochetaddicts.com/upload/files/2022/07/g3g1BKZuAMqDpivNSvGP_08_dc45f9e2a3256d7a019In PDF document text
    • https://fuckmate.de/upload/files/2022/07/WzZSwcqzO9bZiWCRgMSz_08_7c61f7d2481a4263458e843In PDF document text
    • https://teko.my/upload/files/2022/07/ddxpQ5xqGRfhrOw4jgpb_08_7c61f7d2481a4263458e8432c536In PDF document text
    • https://mugvn.s3.amazonaws.com/upload/files/2022/07/hzMzkIe1x3fBLUbvBmMx_08_dc45f9e2a3256In PDF document text
    • https://saudils.com/wp-In PDF document text
    • https://www.twp.ferguson.pa.us/sites/g/files/vyhlif576/f/styles/news_image_teaser/public/news/pagesIn PDF document text
    • https://pra-namorar.paineldemonstrativo.com.br/upload/files/2022/07/VNqceeZtoCiwBYcYFtou_08_dcIn PDF document text
    • https://irabotee.com/wp-In PDF document text
    • http://bestentrypoint.com/marnier.broadened/gore?loctite&splitters=zg93bmxvywr8ovm3wtjammriedhnvfkxtnpfne5qazfowhg4twpvm05iedhlrtbwsuhkbflxuxrzbxh2wnlcyljtrnpkq0jiulu1za&u3rlyw0gtw9uzxkgqwrkzxigdjeuncbtdgvhbsbxywxszxqgsgfjawu3r=surprisingIn 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_off00004aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4ABA 84604 bytes
SHA-256: d744d3a14322d6134ad22d575adcd116b540311129df7b38ff627addad61a30e
font_01_sfnt_off0000d2f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2F7 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261