Malicious PDF — malware analysis report

Static analysis result for SHA-256 23fa2f38c812ff82…

MALICIOUS

PDF

123.6 KB Created: 2022-06-11 13:41:33 +02:00 Authoring application: liviger (via PDF Master 1.0.1) First seen: 2026-05-17
MD5: cd69e397a09736cb62a0262eebc84739 SHA-1: ae27351587b7b6ec55693d47964fc86986101225 SHA-256: 23fa2f38c812ff82f821412f7c9aef03a4d9a144abb3062779a1c07f26cc4de1
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0018

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 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://evacdir.com/clippers/winder.U2VnYSBnZW5lc2lzIEVtdWxhdG9ycyBmcmVlIGRvd25sb2FkU2V?ZG93bmxvYWR8YjMzY1dseWVYeDhNVFkxTkRnNU16RTVNWHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA=/serbs/asps/stutter/sulking PDF link annotation
    • https://www.latablademultiplicar.com/?p=4234In PDF document text
    • https://www.aussnowacademy.com/stalkface-and-stalkscan-help-you-understand-your-facebook-friends-better/In PDF document text
    • https://www.pickmemo.com/upload/files/2022/06/dHOpRUwzbgBafWZOApAV_11_f9bf539d5ce0784d85290f14ff9566d2_file.pdfIn PDF document text
    • http://rackingpro.com/?p=10365In PDF document text
    • http://igpsclub.ru/social/upload/files/2022/06/B2EirnKEETfA3K4RhNhF_11_f9bf539d5ce0784d85290f14ff9566d2_file.pdfIn PDF document text
    • https://www.5etwal.com/one-two-three-movie-1080p-torrent/In PDF document text
    • https://ctago.org/descargar-cyberplanet-6-1-full-14l/In PDF document text
    • https://stinger-live.s3.amazonaws.com/upload/files/2022/06/K7zJ2kpFRpqDWS4Jdkml_11_8f57f02774297fe65f4d97314eb5570e_file.pdfIn PDF document text
    • https://kjvreadersbible.com/free-youtube-downloader-v-3-5-128-0/In PDF document text
    • http://malenatango.ru/power-plant-engineering-book-by-arora-and-domkundwar-free-download-_hot_/In PDF document text
    • https://maithai-massage.cz/wp-content/uploads/2022/06/jamzyme.pdfIn PDF document text
    • https://woodplatform.com/wp-content/uploads/2022/06/OperationflashpointredriverlaunchercrackEXCLUSIVE_Download1.pdfIn PDF document text
    • https://demoforextrading.com/wp-content/uploads/2022/06/Aseprite_2020_FREE_Full_Crack_Latest_New_Version_For_Windows_And_Mac.pdfIn PDF document text
    • http://sad-stroitel48.ru/advert/fotos-de-marijo-desnuda-de-disney-club-desnuda/In PDF document text
    • https://patroll.cl/wp-content/uploads/2022/06/friebeth.pdfIn PDF document text
    • http://www.yourhomeinbarcelona.com/wp-content/uploads/2022/06/elfgil.pdfIn PDF document text
    • http://www.momshuddle.com/upload/files/2022/06/8UDcXnsDu5KmAyxKxSZv_11_f9bf539d5ce0784d85290f14ff9566d2_file.pdfIn PDF document text
    • http://www.escort-middleeast.com/advert/prtg-network-monitor-crack-serial-sites/In PDF document text
    • https://turn-key.consulting/wp-content/uploads/2022/06/Refxnexus265crack29.pdfIn PDF document text
    • http://cfcinc.org/tchnov1-wav-synth-presets-daw-templates/In PDF document text
    • http://evacdir.com/clippers/winder.u2vnysbnzw5lc2lzievtdwxhdg9ycybmcmvligrvd25sb2fku2v?zg93bmxvywr8yjmzy1dsewvyedhnvfkxtkrnnu16rtvnwhg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda=/serbs/asps/stutter/sulkingIn 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
stream_001_off00000dbd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xDBD 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000bba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBA0 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54