Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8e1624de50f0358…

MALICIOUS

PDF

186.7 KB Created: 2015-07-24 04:58:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c17c10c17e7a37cd377d906debd5c4ef SHA-1: 22a0a6b641480adcee6d501e7b9b53b0331bf4d7 SHA-256: c8e1624de50f03584caa48121ca1ee72813a7ffe655e26f4aa95eb959ee3a024
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect the user to a malicious site, likely for malware distribution or phishing. No scripts were extracted from this sample.

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=blue+mountain+state+2+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185290_polnuye_versii_igr_skachat_besplatno_bez_ogranicheniy_po_vremeni.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185495_maykl_gerber_predprinimatelskiy_mif_audiokniga.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185209_karina_zhuraeva_3_dnya_i_tuy_v_turizme_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002aba2.bin
92cc06e9adec4e1db03dfbe6753e6bc214ab90ae58b76af3c35b69c672631f7c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ABA2 7360 bytes
font_00_sfnt_off00024430.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24430 3556 bytes
font_01_sfnt_off000251b3.bin
63e76469538ae0721494f25c933257a37a2105d1bf8148f9a678db68e8b2a7f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251B3 15176 bytes
font_02_sfnt_off00028017.bin
2422715a394c09a5a5e858ae0d9cf6ba58d784aba36b9c292ee0debcb6987bea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28017 14744 bytes
font_04_sfnt_off0002c127.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C127 6084 bytes
font_05_sfnt_off0002d0bc.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0BC 3752 bytes

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