Malicious PDF — malware analysis report

Static analysis result for SHA-256 18aafe5ed8d98820…

MALICIOUS

PDF

126.3 KB Created: 2022-06-09 02:21:38 +02:00 Authoring application: geokael (via PDF Master 1.0.1) First seen: 2026-05-09
MD5: 41e8a8b269832e1121dad754b4df1cd6 SHA-1: 463579b4563b09d3212f05a2d2f8193cde895378 SHA-256: 18aafe5ed8d98820e7e1294effde517e3aa24569978d30db3c45ca0b21394e0d
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0019

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/expirations/gauss/UGlub3kgUGVuZSBNb3ZpZXMgT3QgODBzIFNhYmlrIEdlb3JnZSBFc3RyZWdhbgUGl/cassettes.ZG93bmxvYWR8eVU0TVdsbE5IeDhNVFkxTkRjek1EZzRObng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/hnour.popoular/solidify PDF link annotation
    • http://it-labx.ru/?p=28190In PDF document text
    • https://athome.brightkidspreschool.com/blog/index.php?entryid=43In PDF document text
    • https://callhumano.com/wp-content/uploads/2022/06/Ls_Pearl_Lolitas.pdfIn PDF document text
    • https://apliquickacademy.com/wp-content/uploads/2022/06/html_executable_crack_serial_keys.pdfIn PDF document text
    • https://imarsorgula.com/wp-content/uploads/2022/06/Battlefield_2_Aix_Download.pdfIn PDF document text
    • https://teenmemorywall.com/wp-content/uploads/2022/06/Volvo_Prosis_2011_Crackl.pdfIn PDF document text
    • https://www.zakiproperti.com/wp-content/uploads/2022/06/nelvinc.pdfIn PDF document text
    • https://asuperlist.com/wp-content/uploads/2022/06/yandec.pdfIn PDF document text
    • https://classuna.com/blog/index.php?entryid=5339In PDF document text
    • https://dev.izyflex.com/advert/agabai-arechcha-eng-sub-720p-hd-movie/In PDF document text
    • https://beznaem.net/wp-content/uploads/2022/06/EZ_CD_Audio_Converter_Ultimate_V7181_x86x64_Serial_Key.pdfIn PDF document text
    • http://ulegal.ru/wp-content/uploads/2022/06/Biologia_Solomon_Berg_Martin_8va_Edicion_Pdf.pdfIn PDF document text
    • https://midiario.com.mx/upload/files/2022/06/YE2BeTuSJ8AKc8IyhtFG_09_a9ac6240409c350aafd19b00c0ee4c6e_file.pdfIn PDF document text
    • https://shoplidaire.fr/wp-content/uploads/2022/06/aleachan.pdfIn PDF document text
    • https://wintermarathon.de/advert/tp-link-tl-sc3130-user-manual-tp-link-patched/In PDF document text
    • https://www.dejavekita.com/upload/files/2022/06/bcExyEo1fMvcpLGaNS9x_09_a9ac6240409c350aafd19b00c0ee4c6e_file.pdfIn PDF document text
    • https://nikarad.co/wp-content/uploads/2022/06/hedmas.pdfIn PDF document text
    • http://www.tunlive.com/wp-content/uploads/Koko_U_Parizu_Film_Free_Download_CRACKED.pdfIn PDF document text
    • https://coreelevation.com/2022/06/09/xforce-keygen-revit-2018-64-bit-windows-8/In PDF document text
    • https://luxurygamingllc.com/solid-edge-st5-32-bit-torrent-high-quality/In PDF document text
    • https://beznaem.net/wp-In PDF document text
    • https://midiario.com.mx/upload/files/2022/06/YE2BeTuSJ8AKc8IyhtFG_09_a9ac6240409c350aafd19b00c0eeIn PDF document text
    • https://www.dejavekita.com/upload/files/2022/06/bcExyEo1fMvcpLGaNS9x_09_a9ac6240409c350aafd19b00cIn PDF document text
    • http://www.tunlive.com/wp-content/uploads/koko_u_parizu_film_free_download_cracked.pdfIn PDF document text
    • http://evacdir.com/expirations/gauss/uglub3kgugvuzsbnb3zpzxmgt3qgodbzifnhymlriedlb3jnzsbfc3ryzwdhbgugl/cassettes.zg93bmxvywr8evu0tvdsbe5iedhnvfkxtkrjek1ezzrobng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/hnour.popoular/solidifyIn 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: secureserver.net 1471 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000012cf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x12CF 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000c0b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0B2 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54