Malicious PDF — malware analysis report

Static analysis result for SHA-256 55243ca79d1dc9bc…

MALICIOUS

PDF

113.9 KB Created: 2022-09-11 02:10:18 +00:00 Authoring application: daromari (via PDF Master 1.0.1) First seen: 2026-05-19
MD5: 18571abd0a293e20b82873053f8d8d4e SHA-1: 0ddc5160cd56441013b7742c21d9cc3443ec02dd SHA-256: 55243ca79d1dc9bcde6f14761e1307d7202f1627ecec573ef935e4abc18988bc
224 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0020

Heuristics 7

  • 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.
  • 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://starsearchtool.com/maxon/determinant.runtime?/seventies/U2Ftc3VuZyBzeW5jbWFzdGVyIHNhMzAwIGZpcm13YXJlIHVwZGF0ZSA3MTkU2F/ZG93bmxvYWR8Vmo4Y3pkbllueDhNVFkyTWpZNE1ETTVNSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/ PDF link annotation
    • https://cbdfored.com/wp-content/uploads/2022/09/Crack_Ias_Public_Administration_Notes_Pdf.pdfIn PDF document text
    • https://alafdaljo.com/descargarnormasastmgratisenespaolfull-new/In PDF document text
    • https://rerummea.com/wp-content/uploads/2022/09/Ls_Magazine_22_Anya_44_5.pdfIn PDF document text
    • https://cuteteddybearpuppies.com/wp-content/uploads/2022/09/acca_certus_crack_trial_45.pdfIn PDF document text
    • http://gametimereviews.com/?p=66895In PDF document text
    • https://telegramtoplist.com/artpose-pro-full-crack-pc-verified/In PDF document text
    • https://mercatinosport.com/wp-content/uploads/2022/09/Men_Of_War_1020_Trainer.pdfIn PDF document text
    • https://chateaudelacazette.fr/?p=16755In PDF document text
    • http://franklinpanama.com/naturist-boy-azov-films-anton-avi-top/In PDF document text
    • https://1w74.com/carver-1800-sc-manual-upd/In PDF document text
    • http://med-smi.com/?p=1In PDF document text
    • https://prayersonline.org/wp-content/uploads/2022/09/chadre.pdfIn PDF document text
    • https://acsa2009.org/advert/winrar-verified-crack-german/In PDF document text
    • https://www.spasvseyarusi.ru/advert/solucionario-welty-fundamentos-de-transferencia-de-momento-calor-y-masa-download-portable/In PDF document text
    • https://orbeeari.com/rhinoceros-5-crack-serial-keygen-repack-cd-key-rar/In PDF document text
    • https://mashxingon.com/tareekh-e-damishq-in-urdu-pdf-download-top/In PDF document text
    • https://parsiangroup.ca/2022/09/the-conjuring-2-english-720p-in-dual-audio-hindi/In PDF document text
    • https://nutacademia.com/wp-content/uploads/2022/09/vanchr.pdfIn PDF document text
    • https://abckidsclub.pl/wp-content/uploads/2022/09/Igo_Windows_Ce_60_Download_INSTALL.pdfIn PDF document text
    • http://wp2-wimeta.de/magix-music-maker-mx-production-suite-18-16/In PDF document text
    • https://www.spasvseyarusi.ru/advert/solucionario-welty-fundamentos-de-transferencia-de-momento-calor-In PDF document text
    • http://starsearchtool.com/maxon/determinant.runtime?/seventies/u2ftc3vuzybzew5jbwfzdgvyihnhmzawigzpcm13yxjlihvwzgf0zsa3mtku2f/zg93bmxvywr8vmo4y3pkblluedhnvfkytwpzne1ettvnshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/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
🗂 Part of campaign: med-smi.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001a5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A5A 84508 bytes
SHA-256: 2b7ba551bea82cc3307397981c1dbeb1b78486f95f2eb14e5e58d4e1b24edb0c
font_01_sfnt_off0000a246.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA246 83036 bytes
SHA-256: 6d13e73e85a502a13969f6a5eaecd0b275a0868c045f80b7d64ed55d70678261