Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e6e68d61ed22796…

MALICIOUS

PDF

183.7 KB Created: 2015-07-24 12:03:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 29f46f31ce51f1f68e4432cc03de80ab SHA-1: 2a69358eb4f4b5b2b402f5e90f9e8ef2b696d9d8 SHA-256: 8e6e68d61ed227967f0248b1420e718467c6ae52a504a4750212af51922df7f4
92 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded URL, http://botcraftman.ru/?lip&keyword=adem+90+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was heavily truncated and unreadable.

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=adem+90+%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//4192/4192044_skachat_chit_dlya_ks_16_aim_vh_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189256_tablica_pifagora_numerologiya_po_date_rozhdeniya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185495_maykl_gerber_predprinimatelskiy_mif_audiokniga.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023de7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DE7 3556 bytes
font_01_sfnt_off00024b6a.bin
6e35ef4380b9254c6187e3f025461d2f30fde4690b46b78aeb4db0b491eb943c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B6A 14360 bytes
font_02_sfnt_off000277f6.bin
a63d57612cd0aa13b402d0dcb913ef0e7d93f97783a2aa3f641e87fffc92a269		 pdf-font-stream PDF embedded font (sfnt) at offset 0x277F6 14632 bytes
font_03_sfnt_off0002a323.bin
93ef2def7465ebc3d556c48260c1137437e1e65d30f17a17bfa7c165413af0af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A323 6316 bytes
font_04_sfnt_off0002b4ff.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4FF 6084 bytes
font_05_sfnt_off0002c494.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C494 3752 bytes

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