Malicious PDF — malware analysis report

Static analysis result for SHA-256 4af990cb8183c523…

MALICIOUS

PDF

128.1 KB Created: 2022-09-10 04:56:26 +00:00 Authoring application: yulmic (via PDF Master 1.0.1) First seen: 2026-06-05
MD5: b213093baa9b22577ab73b82efd3051c SHA-1: 49f90e2cf778b7d59965e4bcf4ac2c4ec632f8dc SHA-256: 4af990cb8183c523aa797885f97db4176032649929d61e36e86d9963378f7f79
94 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0008

Heuristics 4

  • 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.
  • 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://bestsmartfind.com/kurushetra/afvclub.ZG93bmxvYWR8b2s2YURSM1kzeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA?comforter=inspection&dHJhdGFtaWVudG8gZGUgYWd1YXMgcmVzaWR1YWxlcyByYW1hbGhvIHBkZiAxNwdHJ=katzenberg.cabdriver PDF link annotation
    • https://briocards.com/wp-content/uploads/2022/09/Frozen_2_full_movie_hd_torrent_free_download.pdfIn PDF document text
    • https://zwergenburg-wuppertal.de/advert/red-giant-trapcode-suite-15-crack-__full__-with-serial-key/In PDF document text
    • https://www.giggleserp.com/wp-content/uploads/2022/09/nicodea.pdfIn PDF document text
    • https://shobeklobek.com/a-pyare-mohan-torrent-exclusive/In PDF document text
    • https://buzhompro.com/wp-content/uploads/2022/09/Tekla_Structural_Designer_2015_NEW_Crack.pdfIn PDF document text
    • https://aliffer.com/wp-content/uploads/2022/09/Sachin__A_Billion_Dreams_Hindi_Movie_Download_Utorrent_UPD.pdfIn PDF document text
    • https://amplefair.com/obtain-mounted-keygen-xforce-for-autocad-mep-2010-obtain-mounted/In PDF document text
    • https://ozrural.com/index.php/advert/compumap-4-0-9-2-con-crack-serial-key-keygen-link/In PDF document text
    • http://mariana-flores-de-camino.com/?p=22271In PDF document text
    • http://www.cpakamal.com/systran-7-premium-translator-iso-torrent-upd/In PDF document text
    • http://nelsonescobar.site/?p=24960In PDF document text
    • https://wanoengineeringsystems.com/intericad-t5-full-con-crack-_verified_-espanol-descargar/In PDF document text
    • https://turn-key.consulting/2022/09/10/ieee-1584-free-__top__-download-pdf/In PDF document text
    • http://nhadatvip.org/?p=12731In PDF document text
    • https://dailyjaguar.com/wp-content/uploads/2022/09/sinkeil.pdfIn PDF document text
    • https://snackchallenge.nl/2022/09/10/hemi-sync-the-gateway-experience-flac-correctedl-exclusive/In PDF document text
    • https://www.dominionphone.com/puli-movie-english-subtitles-download-exclusive/In PDF document text
    • https://parsiangroup.ca/2022/09/crack-verified-ciel-gestion-commerciale-evolution-2013-hit/In PDF document text
    • http://conbluetooth.net/?p=58158In PDF document text
    • https://briocards.com/wp-In PDF document text
    • https://buzhompro.com/wp-In PDF document text
    • https://aliffer.com/wp-In 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_009_off00018e9d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x18E9D 119072 bytes
SHA-256: df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7
font_00_sfnt_off00001332.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1332 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009b1e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B1E 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261

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