Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 36d1b1ae1d3bd9bf…

MALICIOUS

PDF / .VIR

148.7 KB Created: 2022-06-15 16:22:18 +02:00 Authoring application: taleule (via PDF Master 1.0.1) First seen: 2024-09-20
MD5: 3fa9721fc6e128da8a203b7c18e4707f SHA-1: 45149d07d5c7d9e841137e8aa0a556d962f01ca4 SHA-256: 36d1b1ae1d3bd9bfd27e6679c8bfb09dedf98ce7c92bf6029f305c50fe5ed304
114 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0021

Heuristics 5

  • 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 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.
  • 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.
  • 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/corsa/pvfs/disposed=epic/fibula=mediocre?advancements=U2VsZWN0aW9uIER1cmF0aW9uU2V.ZG93bmxvYWR8Rkk4ZW5FNWZId3hOalUxTWprNU9EUTBmSHd5TlRrd2ZId29UU2tnVjI5eVpIQnlaWE56SUZ0WVRVeFNVRU1nVmpJZ1VFUkdYUQ PDF link annotation
    • https://www.ilmercatinodelleofferte.it/wp-content/uploads/2022/06/inglsas.pdfIn PDF document text
    • https://gabonbiota.org/portal/checklists/checklist.php?clid=11460In PDF document text
    • http://leasevoordeel.be/wp-content/uploads/2022/06/fman.pdfIn PDF document text
    • https://boardingmed.com/2022/06/15/yaruler-��������-with-keygen-��������������-latest-2022/In PDF document text
    • https://romans12-2.org/juke-that-����������������������������-������������-������������-��������/In PDF document text
    • https://dornwell.pl/wp-content/uploads/2022/06/Free_Barcode_Creator__With_Full_Keygen___April2022.pdfIn PDF document text
    • https://www.estudiferrer.com/wp-content/uploads/2022/06/aleemel.pdfIn PDF document text
    • https://agile-wave-03086.herokuapp.com/eleeyon.pdfIn PDF document text
    • https://pustakasmansatumaninjau.com/wp-content/uploads/2022/06/JOOX_____Product_Key__3264bit.pdfIn PDF document text
    • https://skatesquad.com/upload/files/2022/06/HwLZsxzgSWlDLBlFealk_15_ab82315db02806124c54675ba82b012c_file.pdfIn PDF document text
    • https://www.catwalk.dog/wp-content/uploads/2022/06/Rapid_File_Get____Activation_Code_With_Keygen_____MacWin_2022.pdfIn PDF document text
    • https://misasgregorianas.com/surf-find-activation-key-��������������-win-mac/In PDF document text
    • http://thanhphocanho.com/silverjuke-license-key-full-��������������-������������������-for-pc-updated-2022/In PDF document text
    • https://liquidonetransfer.com.mx/?p=18090In PDF document text
    • https://csvcoll.org/portal/checklists/checklist.php?clid=32204In PDF document text
    • https://firmateated.com/2022/06/15/synactis-photostudio-������������������-��������������-������������������-latest-2022/In PDF document text
    • https://jomshopi.com/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22year30bd44cc13fa7a30ad81In PDF document text
    • https://www.catwalk.dog/wp-In PDF document text
    • https://jomshopi.com/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22year30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22monthnum30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22day30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22postname30bd44cc13fa7a30ad813cde1638c46c0edaa38936cbedbaaec9e88888dcad22/In PDF document text
    • https://boardingmed.com/2022/06/15/yaruler-кряк-with-keygen-скачать-latest-2022/In PDF document text
    • http://evacdir.com/corsa/pvfs/disposed=epic/fibula=mediocre?advancements=u2vszwn0aw9uier1cmf0aw9uu2v.zg93bmxvywr8rkk4zw5fnwzid3hoaluxtwprnu9eutbmshd5tlrrd2zid29uu2tnvji5evpiqnlawe56suz0wvrvefnvru1nvmpjz1vfukdyuqIn PDF document text
    • https://wakelet.com/wake/TqXpc-7aSI8zzF1GZjqWPIn PDF document text
    • https://stimarmardaroli.wixsite.com/guiblangurgczar/post/database-viewer-��������������-������������������-for-windows-latest-2022In PDF document text
    • https://biokic4.rc.asu.edu/sandbox/portal/checklists/checklist.php?clid=12124In 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_off00002061.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2061 131452 bytes
SHA-256: 4d8a7b374457c94ad9683703a2e3ecd399818f16ae78749457f84266ff7f8f4c
font_01_sfnt_off0000e804.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE804 80540 bytes
SHA-256: d973aa30be4fe9047ecb27f8076e5c78f9d696bfa7e007b9dddef6d3ce443ddc