Malicious PDF — malware analysis report

Static analysis result for SHA-256 f20a86899379dd1f…

MALICIOUS

PDF

184.3 KB Created: 2015-07-24 00:18:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 03ca170f00c1817606e62884a1fb4807 SHA-1: c1c4b515ffbc971202701e94cdc6470da87c353f SHA-256: f20a86899379dd1f9de20e1554d7f43b033eb6b8175963503213a084fbf5789b
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for this assessment.

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=tna+impact+pc+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186161_skachat_drayver_dlya_printera_hp_laserjet_cp1025_color.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184643_skachat_2_gis_nizhniy_novgorod_na_kompyuter_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184617_skachat_vord_probnuyu_versiyu_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023da0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DA0 3556 bytes
font_01_sfnt_off00024b23.bin
074697920ffc6000cf885154fbf09f6d20abfbdc1c892b4790cd423878d2751e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B23 15036 bytes
font_02_sfnt_off00027989.bin
35d270cb64cb5843f0de4240757320bb9eff2061e1b7ad2ebfb2a680eedd451f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27989 14744 bytes
font_03_sfnt_off0002a512.bin
c49aeebb1e49113d78f27f5d8e12354486d2a6738f783c7ae793dd6c51f4be39		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A512 6460 bytes
font_04_sfnt_off0002b755.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B755 6084 bytes
font_05_sfnt_off0002c6ea.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6EA 3752 bytes

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