Malicious PDF — malware analysis report

Static analysis result for SHA-256 f157a90bc2e921b6…

MALICIOUS

PDF

244.6 KB Created: 2022-09-10 12:50:41 +00:00 Authoring application: waldar (via PDF Master 1.0.1) First seen: 2026-05-06
MD5: dc7f7c64e462b850746a89715a0f504f SHA-1: 34a81747d5c46268b88728464c8b0cbd08934024 SHA-256: f157a90bc2e921b6a0c062f7b9ff866023c295f22f0e0db316e6e4a09bb22ce8
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0006

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://lehmanbrotherbankruptcy.com/ZG93bmxvYWR8YVAxYkdKa1pueDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/bolting/R2xhcnkgVXRpbGl0aWVzIFBybyA1Ljk0LjAuMTE2IENyYWNrIFtDcmFja3NOb3ddIFNlcmlhbCBLZXkgS2V5Z2VuR2x.molecular?calibrating&&visionaware&spilled PDF link annotation
    • https://www.fermactelecomunicaciones.com/wp-content/uploads/2022/09/lyzkam.pdfIn PDF document text
    • https://topgiftsforgirls.com/adobe-after-effects-cc-2016-v14-6-crack-download-pc-top/In PDF document text
    • http://match2flame.com/donde-puedo-descargar-torrents-de-pedofilia/In PDF document text
    • https://tecnoviolone.com/wp-content/uploads/2022/09/Teachers_2009__8_split_scenes__Jesse_Jane_Lisa_Ann_Katsuni.pdfIn PDF document text
    • https://unsk186.ru/crack-link-license-runtime-vijeo-designer/In PDF document text
    • https://verycheapcars.co.zw/advert/lumion25crackwork-download32bit-2/In PDF document text
    • http://www.studiofratini.com/delphi-for-php-top-cracked-exe-and-dll/In PDF document text
    • https://gamedevnikhil.com/wp-content/uploads/2022/09/wave_function_spartan_10_crack_12.pdfIn PDF document text
    • https://aboulderpharm.com/wp-content/uploads/HACK_DVD_Decrypter_3540_HOT.pdfIn PDF document text
    • https://dallahcoffee.com/autocad-xforce-2014-link-keygen/In PDF document text
    • https://thelandofthemisfitsouls.com/2022/09/10/magix-movie-edit-pro-17-plus-hd-crack-free-portable/In PDF document text
    • https://yasutabi.info/wp-content/uploads/2022/09/Stellar_Phoenix_Outlook_Pst_Repair_45_Serial_Key.pdfIn PDF document text
    • http://nadiasalama.com/?p=68826In PDF document text
    • https://www.vakantiehuiswinkel.nl/wp-content/uploads/ualwel.pdfIn PDF document text
    • https://buycoffeemugs.com/wp-content/uploads/2022/09/keasunr.pdfIn PDF document text
    • https://eqsport.biz/hd-online-player-abcd-any-body-can-dance-movie-1-10-exclusive/In PDF document text
    • https://arteshantalnails.com/2022/09/10/mukavemet-1-mehmet-omurtag-pdf-download-17-free/In PDF document text
    • https://buycoffeemugs.com/nch-videopad-video-editor-professional-7-11-__full__-crack-11-4-mb/In PDF document text
    • https://thadadev.com/hichki-the-movie-full-__hot__-free-download/In PDF document text
    • https://tecnoviolone.com/wp-In PDF document text
    • http://lehmanbrotherbankruptcy.com/zg93bmxvywr8yvaxykdka1puedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/bolting/r2xhcnkgvxrpbgl0awvzifbybya1ljk0ljaumte2ienyywnriftdcmfja3nob3ddifnlcmlhbcblzxkgs2v5z2vur2x.molecular?calibrating&&visionaware&spilledIn PDF document text
    • https://secureservercdn.net/198.71.233.46/479.459.myftpupload.com/wp-content/uploads/2022/09/Prominy_V_Metal_KONTAKTtorrent.pdf?time=1662814214In PDF document text
    • http://www.tcpdf.orgIn PDF document text
    • https://secureservercdn.net/198.71.233.46/479.459.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
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000013bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BC 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off00009ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BA8 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261