Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0c1faf9f228382d…

MALICIOUS

PDF

116.6 KB Created: 2022-07-06 05:18:54 +00:00 Authoring application: cherlann (via PDF Master 1.0.1) First seen: 2026-04-05
MD5: 42d80aeea6d418ecc9ba54f14e6f571e SHA-1: 3c35c1b4ac965347db5659295610806abed0bdb0 SHA-256: f0c1faf9f228382d8bdb36a411c768bafa1ce104ffb0a80e141f1e0c27f02dc8
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0005

Heuristics 5

  • 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 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.
  • 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.
  • 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/bobos/RHJlYW1Cb3ggT3B0aUZsYXNoZXIgUHJvIEUyIFYyMDAyZnVsbHJhcgRHJ.carabiner?ZG93bmxvYWR8QlAzT0RabWQzeDhNVFkxTnpBMk56RTFOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=/hawks.countenance PDF link annotation
    • https://modernplasticsjobs.com/wp-content/uploads/2022/07/knjigovodstvo_za_pocetnike_pdf_15.pdfIn PDF document text
    • https://alternantreprise.com/seriya/hechos-que-generaron-el-modelo-agroexportador-en-el-salvador-new/In PDF document text
    • https://yukoleather.net/wp-content/uploads/2022/07/aldymand.pdfIn PDF document text
    • https://americanzorro.com/crack-linktvpaintanimationpro/In PDF document text
    • https://lefterovata-kashta.eu/servisna-knjizica-za-auto-pdf-link/In PDF document text
    • http://conbluetooth.net/?p=25781In PDF document text
    • https://www.thesmilecraft.com/wp-content/uploads/2022/07/brinkaul.pdfIn PDF document text
    • https://evolvagenow.com/upload/files/2022/07/42tUrL6Us7ufEaHellzO_06_9faa012a6fc147a7d1054109a36bc267_file.pdfIn PDF document text
    • https://unsk186.ru/motor-solo-run-test-procedure-pdf-download-link/In PDF document text
    • http://www.psicorp.com/sites/psicorp.com/files/webform/HP-Executive-Tablet-Pen-R1-Software-Update.pdfIn PDF document text
    • https://pqinsel.com/pq/advert/cuidados-inmediatos-mediatos-y-tardios-del-recien-nacido-pdf-verified/In PDF document text
    • https://serippyshop.com/winrar-kostenlos-downloaden-deutsch-64-bitl-top/In PDF document text
    • https://lfbridge.com/upload/files/2022/07/ees5OMV8nNbL9AKnsDCx_06_9faa012a6fc147a7d1054109a36bc267_file.pdfIn PDF document text
    • https://www.connect.aauaalumni.com/upload/files/2022/07/kQyFHmh8Qt5kyPVdB5Py_06_b491d6ffaede1b1f97cad2a4868b1246_file.pdfIn PDF document text
    • https://outlethotsale.com/wp-content/uploads/2022/07/nanschn.pdfIn PDF document text
    • https://cityofpt.us/system/files/webform/zohioliin-duu-tatah.pdfIn PDF document text
    • https://merryquant.com/hd-online-player-videos-porno-de-ninas-de-1213-14/In PDF document text
    • https://adhicitysentulbogor.com/hd-online-player-ghost-3-full-movie-free-download-hd-verified/In PDF document text
    • http://stv.az/?p=16254In PDF document text
    • https://evolvagenow.com/upload/files/2022/07/42tUrL6Us7ufEaHellzO_06_9faa012a6fc147a7d1054109a36bc267_file.pIn PDF document text
    • https://www.connect.aauaalumni.com/upload/files/2022/07/kQyFHmh8Qt5kyPVdB5Py_06_b491d6ffaede1b1f97cad2a4In PDF document text
    • http://bestsmartfind.com/bobos/rhjlyw1cb3ggt3b0auzsyxnozxiguhjvieuyifyymdayznvsbhjhcgrhj.carabiner?zg93bmxvywr8qlazt0rabwqzedhnvfkxtnpbmk56rtfoshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=/hawks.countenanceIn PDF document text
    • https://trello.com/c/Gdff7c4E/62-mot-de-passe-logitrace-v14In 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_off000022f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22F5 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000aae1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAAE1 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261