Malicious PDF — malware analysis report

Static analysis result for SHA-256 748306821d2a6b69…

MALICIOUS

PDF

128.0 KB Created: 2022-06-09 03:34:59 +02:00 Authoring application: evefio (via PDF Master 1.0.1) First seen: 2023-12-28
MD5: 8579052adefe67625a33365c05fb2f0c SHA-1: 709e103f2d91d9541135603009bfe9c16f7f9358 SHA-256: 748306821d2a6b6964f910f35498b0417db2b4270feb503a8476f67f1118288c
164 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0011

Heuristics 5

  • 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.
  • PDF links to a cracked-software download doorway (base64-obfuscated) high PDF_CRACKED_SOFTWARE_DOWNLOAD_DOORWAY
    PDF's embedded link hides a pirated-software title as a base64 blob inside the URL path/query (and/or carries the ``download|`` doorway-template marker), rather than in visible text. This is a TCPDF-generated SEO doorway that ranks for software-piracy searches and funnels users to fake 'crack/keygen' download pages distributing adware, potentially-unwanted programs, or droppers. The base64 encoding is deliberate obfuscation to evade plaintext lure rules; the PDF itself carries no parser exploit — the risk is the linked crack-download destination.
  • 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/ZG93bmxvYWR8N2JkTTNWdlpueDhNVFkxTkRjek1EZzRObng4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA/tinier/ZG93bmxvYWQgZmlsbSB0aGUgcmFpZCAyIGJhaGFzYSBpbmRvbmVzaWEga2UZG9/akimbo.fraught/lingonberry.mench.gannets/phenergan/ PDF link annotation
    • https://www.zoekplein.be/wp-content/uploads/2022/06/Jodha_Akbar_Mulumathy_Avalathu_Mugamagum_Video_Song_Free_LINK_Rapidshare.pdfIn PDF document text
    • https://agedandchildren.org/wp-content/uploads/2022/06/El_Viaje_De_Chihiro_Latino_1080p_Mega_BEST.pdfIn PDF document text
    • https://conselhodobrasil.org/wp-content/uploads/2022/06/gundam_tactics_mobility_fleet_0079rar.pdfIn PDF document text
    • https://openld.de/wp-content/uploads/2022/06/Gabbar_Singh_Hd_Video_Songs_1080p.pdfIn PDF document text
    • https://nilepharmafood.com/wp-content/uploads/2022/06/chanjame.pdfIn PDF document text
    • https://aglgamelab.com/wp-content/uploads/2022/06/fallout_4_body_slider_presets.pdfIn PDF document text
    • https://media1.ambisonic.se/2022/06/keilnab.pdfIn PDF document text
    • https://fitenvitaalfriesland.nl/wp-content/uploads/2022/06/Doctor_Strange_English_Hindi_Dubbed_Free_Download_Utorrent.pdfIn PDF document text
    • https://tucorsetera.com/wp-content/uploads/2022/06/ganver.pdfIn PDF document text
    • https://abkoutlet.com/wp-content/uploads/2022/06/ibleeskimajliseshurapdffree29.pdfIn PDF document text
    • http://www.moskyshop.com/wp-content/uploads/2022/06/Graphics_Dll_For_Ps3_Emulator_194.pdfIn PDF document text
    • http://mir-ok.ru/wp-content/uploads/2022/06/mayabazaroldtamilmoviemp3songsfreedownload.pdfIn PDF document text
    • https://ibioshop.com/native-instruments-maschine-expansion-true-school-r2r-crack/In PDF document text
    • https://www.talkmoreafrica.com/wp-content/uploads/2022/06/Dmx_And_Then_There_Was_X_Download.pdfIn PDF document text
    • https://www.rubco.be/uncategorized/vicky-cristina-barcelona-1080p-bluray/In PDF document text
    • https://www.need24care.com/wp-content/uploads/2022/06/adelzabr.pdfIn PDF document text
    • http://www.ventadecoches.com/wp-content/uploads/2022/06/whytcere.pdfIn PDF document text
    • https://www.americanchillpodcast.com/upload/files/2022/06/pf9GiSZ4EjxsJI3e6wWu_09_e00ac540030737a2e1d49b05b402d948_file.pdfIn PDF document text
    • https://algarvepropertysite.com/film-rabbit-without-ears-torrent-__link__/In PDF document text
    • http://evacdir.com/zg93bmxvywr8n2jkttnwdlpuedhnvfkxtkrjek1ezzrobng4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda/tinier/zg93bmxvywqgzmlsbsb0agugcmfpzcayigjhagfzysbpbmrvbmvzawega2uzg9/akimbo.fraught/lingonberry.mench.gannets/phenergan/In PDF document text
    • https://shapshare.com/upload/files/2022/06/DGW7Abtkjxdl3ccesvGk_09_f46bb032b50c39ee7c15ee5ade3abecc_file.pdfIn 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_004_off00001d66.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1D66 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
font_01_sfnt_off0000cb49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB49 76772 bytes
SHA-256: 07ce6fea3c98bf59133021be55ce9147f9c26365efe580a2a4f82130ca697f54