Malicious PDF — malware analysis report

Static analysis result for SHA-256 7531860c48305057…

MALICIOUS

PDF

185.7 KB Created: 2015-07-23 20:56:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 72f36a82e0fd685275af1c065280ac34 SHA-1: b8d4a8003b3a2a400da8a38bd9653f92561afb73 SHA-256: 7531860c48305057904602f9250193aaca89e67c657139ed377a520958268478
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is associated with malicious activity. While no scripts were explicitly extracted, the PDF structure and the malicious link suggest an attempt to redirect the user to a harmful site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://botcraftman.ru/?lip&keyword=%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B1%D0%B8%D0%BB%D0%B5%D1%82%D1%8B+%D0%BF%D0%B4%D0%B4+2014+%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0+%D1%88%D0%BF%D0%B0%D1%80%D0%B3%D0%B0%D0%BB%D0%BA%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184384_kod_aktivacii_dlya_kasperskogo_2015_internet_security.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183256_shema_podklyucheniya_gerkona.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184421_obrazec_zayavleniya_na_uderzhanie_iz_zarabotnoy_platuy.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024349.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24349 3556 bytes
font_01_sfnt_off000250cc.bin
7ce514316a60f303a3815452259b6a89a47ff463d9bee3b0ff31bc1190bf9a4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250CC 14568 bytes
font_02_sfnt_off00027e53.bin
43828d818635547681b5f244fbbf4a84475d7119c107724f1c510b258bdf570b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E53 14520 bytes
font_03_sfnt_off0002a924.bin
d68942eaba38154c61e397f08fc41c8a73cae56eb9d4efdd0970e8edae202aba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A924 6928 bytes
font_04_sfnt_off0002bd2d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD2D 6084 bytes
font_05_sfnt_off0002ccc2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCC2 3752 bytes

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