Malicious PDF — malware analysis report

Static analysis result for SHA-256 897ecc7b5c283306…

MALICIOUS

PDF

188.1 KB Created: 2015-07-24 09:18:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5d9a24c1bff055374f5cfbeb83da5a3c SHA-1: 9c8d34bec9c08e7866779ee4ed85a75811c9e00c SHA-256: 897ecc7b5c28330620df5fb1efd845f1dd803a9a46cbffea507cb1c47e7622ae
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is a strong indicator of malicious intent, likely serving as a lure for phishing or malware delivery. No scripts were extracted, but the presence of the malicious link 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=%D1%83%D1%80%D0%B0%D0%B2%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5+%D1%81+%D0%BE%D0%B4%D0%BD%D0%B8%D0%BC+%D0%BD%D0%B5%D0%B8%D0%B7%D0%B2%D0%B5%D1%81%D1%82%D0%BD%D1%8B%D0%BC+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186883_ct_po_istorii_belarusi_2015.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187909_star_wars_the_old_republic_online_rusifikator_teksta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186950_skachat_maynkraft_152_cherez_torrent_besplatno_bez_virusov.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_off00024ca2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CA2 3556 bytes
font_01_sfnt_off00025a25.bin
2a2303fd731bcd5bcfa0e31f29e112a78a16384bc22f8538b577269f051b9964		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25A25 15308 bytes
font_02_sfnt_off0002897c.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2897C 14468 bytes
font_03_sfnt_off0002b42f.bin
52d330114483236297d20be614314edd61fae2d4ae916617cf1229eb7d429c69		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B42F 6436 bytes
font_04_sfnt_off0002c673.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C673 6084 bytes
font_05_sfnt_off0002d608.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D608 3752 bytes

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