Malicious PDF — malware analysis report

Static analysis result for SHA-256 550a040cb33c7e29…

MALICIOUS

PDF

128.4 KB Created: 2022-07-18 03:25:04 +00:00 Authoring application: goodredh (via PDF Master 1.0.1) First seen: 2026-04-04
MD5: 16fc7b9fc7a430122fa7f4b42374a2b8 SHA-1: 6f14d7c78996da80f9dad884c5fcbcf120cff291 SHA-256: 550a040cb33c7e297963112ff1866ebe3d11e282443fcb91a3302b6d0600db28
174 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0007

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://siteslocate.com/ZG93bmxvYWR8bDR6Y1RKcmNueDhNVFkxT0RBd05qWTVPWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/bHY1dCBkdmItdCB1c2IgZHJpdmVyIGRvd25sb2FkbHY/bungalows/graps.pensioners.rehm.rendez/attenborough/searchs/ PDF link annotation
    • https://mokumbootcamp.nl/wp-content/uploads/2022/07/Entre_Jeunes_2_Cahier_D_Exercices_Solution_Rapidshare.pdfIn PDF document text
    • http://DUBAIPROPERTY.SALE/?p=6148In PDF document text
    • https://fitenvitaalfriesland.nl/wall-e-1080p-castellano-spanish/In PDF document text
    • https://consemaracademy.com/wp-content/uploads/2022/07/gaspats.pdfIn PDF document text
    • https://maltymart.com/advert/roald-dahl-the-bfg-read-online-hot/In PDF document text
    • https://kramart.com/how-to-install-mods-on-a-cracked-minecraft-15-new/In PDF document text
    • https://www.livegreenbean.com/wp-content/uploads/2022/07/biadarr.pdfIn PDF document text
    • http://www.b3llaphotographyblog.com/wp-content/uploads/2022/07/marnsamp.pdfIn PDF document text
    • https://instafede.com/download-betterbotderodaritensmetin2/In PDF document text
    • http://www.giffa.ru/who/nokia-best-bb5-easy-service-tool-by-infinity-box-team-ver-1141ra-updated/In PDF document text
    • https://luxvideo.tv/2022/07/18/adobe-audition-cc-2018-11-0-0-portable-x64-crack-new/In PDF document text
    • https://fansloyalty.com/wp-content/uploads/2022/07/Adibou_Installationdaa_behaarte_wunderland.pdfIn PDF document text
    • https://josebonato.com/zoo-sex-tv-free-top-animal-porn-animal-sex-zoo-porn-dog-porn-url/In PDF document text
    • https://over-the-blues.com/advert/cummins-engine-serial-number-decoder/In PDF document text
    • https://acsa2009.org/advert/shadow-defender-1-4-setup-serial-key-full-new-latest/In PDF document text
    • https://kalapor.com/bancslink-version-2-9-5-2021/In PDF document text
    • https://gobigup.com/convert-torrent-to-iso/In PDF document text
    • http://dichvuhoicuoi.com/?p=39443In PDF document text
    • https://buywbe3.com/wp-content/uploads/2022/07/InazumaElevenPs2IsoDownload.pdfIn PDF document text
    • http://www.publicpoetry.net/wp-content/uploads/2022/07/saditalc.pdfIn PDF document text
    • https://mokumbootcamp.nl/wp-In PDF document text
    • https://fansloyalty.com/wp-In PDF document text
    • http://siteslocate.com/zg93bmxvywr8bdr6y1rkcmnuedhnvfkxt0rbd05qwtvpwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/bhy1dcbkdmitdcb1c2igzhjpdmvyigrvd25sb2fkbhy/bungalows/graps.pensioners.rehm.rendez/attenborough/searchs/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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002b9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9A 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000b386.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB386 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261