Malicious PDF — malware analysis report

Static analysis result for SHA-256 18a818d1f61690ba…

MALICIOUS

PDF

115.6 KB Created: 2022-09-09 03:10:21 +00:00 Authoring application: hugohed (via PDF Master 1.0.1) First seen: 2026-05-09
MD5: 8dfee54ede33bc50b544885bb7dd1d44 SHA-1: 3a82744dde37b5c1ce729b766a3513dab055f1ee SHA-256: 18a818d1f61690bab32a794e88c40329b72cb556263f8baec2adde037550aaf0
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0016

Heuristics 6

  • 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.
  • 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 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://signforcover.com/?hospitals=cosmopolitian/UmVkIE1jIE5iYSAyazE0IENyYWNrIERvd25sb2FkawUmV/evaluative/ZG93bmxvYWR8Y3o4TVhseGVIeDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/icrs/matchbook/resealing/glaza PDF link annotation
    • https://immense-bastion-05836.herokuapp.com/poliphi.pdfIn PDF document text
    • https://libaco.nl/wp-content/uploads/2022/09/wianflor.pdfIn PDF document text
    • https://infinitynmore.com/2022/09/08/final-destination-3-full-movie-in-hindi-free-download-avi-updated/In PDF document text
    • https://magic-lamps.com/wp-content/uploads/2022/09/Avid_Media_Composer_842_Crack_CodTOP_Free_Fahrenheit_T.pdfIn PDF document text
    • https://klassenispil.dk/metro-2033-filter-cheat-upd/In PDF document text
    • http://infoimmosn.com/?p=46427In PDF document text
    • http://steamworksedmonton.com/coreldraw-graphics-suite-2018-v20-0-0-633-retail-x86-x64-ml-2021-keygen/In PDF document text
    • https://engagementlandschaft.de/wp-content/uploads/2022/09/naonati.pdfIn PDF document text
    • http://marqueconstructions.com/2022/09/09/facebook-friend-adder-bot-v3-2-cracked-34-verified/In PDF document text
    • https://ibipti.com/yowindow-unlimited-edition-4-build-103-serial-key-crackingpa-keygen-__exclusive__/In PDF document text
    • https://discovery.info/harold-speed-oil-painting-techniques-pdf-22/In PDF document text
    • https://lockdownrank.com/wp-content/uploads/2022/09/orsgio.pdfIn PDF document text
    • https://silkfromvietnam.com/ardfry-psd-codec-v1-6-1-0-crack-top/In PDF document text
    • https://it-sbo.com/wp-content/uploads/2022/09/Cabal_PH_Alz_Hack_2012rar.pdfIn PDF document text
    • https://cryptic-lake-39221.herokuapp.com/Image_Metrology_Spip_Crack_Cocainel.pdfIn PDF document text
    • https://www.yapidurealestate.com/tetris-ultimate-version-download-top/In PDF document text
    • https://www.webcard.irish/tonik-pt-3-newstar-jimmy-sets-91120-full/In PDF document text
    • https://frostinealps.com/tomtom-maps-of-western-and-central-europe-full-v8-15-2096-t0nk4-setup-free-updated/In PDF document text
    • https://theoceanviewguy.com/sheridan-data-widgets-3-0-download-repack/In PDF document text
    • https://infinitynmore.com/2022/09/08/final-destination-3-full-movie-in-hindi-free-download-avi-In PDF document text
    • https://magic-lamps.com/wp-In PDF document text
    • http://steamworksedmonton.com/coreldraw-graphics-suite-2018-v20-0-0-633-retail-In PDF document text
    • https://ibipti.com/yowindow-unlimited-edition-4-build-103-serial-key-crackingpa-In PDF document text
    • https://frostinealps.com/tomtom-maps-of-western-and-central-europe-full-v8-15-2096-t0nk4-setup-In PDF document text
    • http://signforcover.com/?hospitals=cosmopolitian/umvkie1jie5iysayaze0ienyywnriervd25sb2fkawumv/evaluative/zg93bmxvywr8y3o4tvhsegviedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/icrs/matchbook/resealing/glazaIn PDF document text
    • https://secureservercdn.net/198.71.233.69/5z3.800.myftpupload.com/wp-content/uploads/2022/09/nfpa132013handbookpdfdownload.pdf?time=1662692792In PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://secureservercdn.net/198.71.233.69/5z3.800.myftpupload.com/wp-In 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_off000019cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19CD 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA1B9 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261