Malicious PDF / .VIR — malware analysis report

Static analysis result for SHA-256 7caa073832f83e20…

MALICIOUS

PDF / .VIR

58.2 KB Created: 2023-01-02 02:13:35 +00:00 Authoring application: waitintr (via mPDF 8.1.2) First seen: 2024-11-21
MD5: ad1405900e1a01d83bec19ff3f40ac3c SHA-1: 7473b233d72b52768d9a1c3b0dde0160b11d270d SHA-256: 7caa073832f83e204704571e408cbbb9d8fbe8626ea6171b64818d16b99b4988
104 Risk Score

Machine Learning

  • Nyx PDF Classifier clean score 0.0024

Heuristics 4

  • 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://awarefinance.com/UGhvdG9zaG9wIENDIDIwMTggdmVyc2lvbiAxOQUGh/cruised.ZG93bmxvYWR8dnU1TTNaaWVYeDhNVFkzTWpVNU1qVTNOSHg4TWpVNU1IeDhLRTBwSUZkdmNtUndjbVZ6Y3lCYldFMU1VbEJESUZZeUlGQkVSbDA.sikander.infernal.easier.johan PDF link annotation
    • http://awarefinance.com/ughvdg9zag9wiendidiwmtggdmvyc2lvbiaxoqugh/cruised.zg93bmxvywr8dnu1ttnaawvyedhnvfkztwpvnu1qvtnoshg4twpvnu1iedhlrtbwsuzkdmntundjbvz6y3lcyldfmu1vbejesuzzeulgqkvsbda.sikander.infernal.easier.johanIn PDF document text
    • https://zeno.fm/radio/dreams-3d-giantess-game-free-11In PDF document text
    • https://zeno.fm/radio/3dflow3dfzephyrpro1009wincrackIn PDF document text
    • https://zeno.fm/radio/p3dv4pmdg-777200lr-f-300er-expansion-free-uf69In PDF document text
    • https://zeno.fm/radio/eleventa-multicaja-full-crack-15In PDF document text
    • https://zeno.fm/radio/qasas-ul-anbiya-in-bangla-pdf-freeIn PDF document text
    • https://zeno.fm/radio/descargar-algebra-moderna-de-sebastian-lazo-399In PDF document text
    • https://zeno.fm/radio/stylish-pashto-fonts-for-windows-7-free-downloadIn PDF document text
    • https://zeno.fm/radio/autodesk-revit-architecture-2011-free-download-full-versionIn PDF document text
    • https://zeno.fm/radio/the-beast-inside-activation-code-crack-serial-keyIn PDF document text
    • https://zeno.fm/radio/bentley-topograph-v8iIn PDF document text
    • http://dejavu.sourceforge.netIn extracted file (stream_006_off00004374.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (stream_006_off00004374.bin)
🗂 Part of campaign: secureserver.net 1471 samples

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00004374.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4374 20040 bytes
SHA-256: f74ee16628f0d619351c153107c4fbfa7a2dc2cf01b01b228cedc75a53622b4b
stream_010_off0000a747.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xA747 119072 bytes
SHA-256: df221e87b81d1531cafdadb6c09a602e9f604d1baf0a17bbd350cbb83baa06f7
font_01_sfnt_off000077d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77D2 19964 bytes
SHA-256: 5154a7c8cf7a9b55c2f939ad6a4a8f8327cd6552b9f68a87c49d10dfc747eaa8