Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d518f2ea421adbb…

MALICIOUS

PDF

183.8 KB Created: 2015-07-25 00:34:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9d2a2c37309618d13b572aeb12d0841a SHA-1: e33810012649da840b8fe55d2f5d6e185cff1cc7 SHA-256: 7d518f2ea421adbbdb3b142c0429eaa4b5daaec990c9c092ae445b77fb4a0277
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious activity. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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%92%D0%B8%D0%B4%D0%B5%D0%BE+%D0%B3%D0%BE%D0%BB%D1%8B%D1%85+%D0%BC%D0%B0%D0%BB%D0%BE%D0%BB%D0%B5%D1%82%D0%BE%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196928_klub_pingvinov_koduy_na_podpisku.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191883_hata_na_tata_3_sezon_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185248_skachat_chit_na_ks_1_6_aim_v_golovu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c92.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C92 3556 bytes
font_01_sfnt_off00024a15.bin
871c4c0828686d48106c1dec63747131a195f1ac2f9869cdbf606d30934e6cf4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A15 14868 bytes
font_02_sfnt_off0002788a.bin
ac256187795b95e32ab95fe5f05982c21c052d3491be979748298a5b41e59962		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2788A 14748 bytes
font_03_sfnt_off0002a395.bin
0e6266c2231b1f9a2bc1506af9ed29bc37b36eaa6cd12790a3edcac60ca1e8bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A395 6308 bytes
font_04_sfnt_off0002b56a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B56A 6084 bytes
font_05_sfnt_off0002c4ff.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4FF 3752 bytes

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