Malicious PDF — malware analysis report

Static analysis result for SHA-256 494132d79176bb1d…

MALICIOUS

PDF

188.2 KB Created: 2015-07-24 03:34:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e3900c2dd376220c4fa7a3ae439b2846 SHA-1: 17bbc5f6ef8c3e3fe974845929eefeee60ea49f8 SHA-256: 494132d79176bb1dc4234f7cb601f6224c7db55983677404888eb3ba474d8892
92 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. 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=%D0%BC%D0%B0%D1%80%D0%B8%D0%BD%D0%B8%D0%BD%D0%B0+%D0%BF%D0%BE%D1%81%D0%BB%D0%B5%D0%B4%D0%BD%D0%B8%D0%B9+%D1%80%D0%B0%D1%81%D1%81%D0%B2%D0%B5%D1%82+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+epub&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184975_tekst_shutochnoe_blagodarstvennoe_pismo.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187986_viber_skachat_dlya_android_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187712_asus_x54c_drayvera_setevoy_kontroller.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024ae6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AE6 3556 bytes
font_01_sfnt_off00025869.bin
39a7248d9f2941db2c701addd48162bd97458f8108a0b7bc70a2dfdf8ab6a584		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25869 15056 bytes
font_02_sfnt_off00028764.bin
b6de946e02f3139230b05bdff0e29277e2b1f82ced05778ace80e7b4f4b57b00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28764 14596 bytes
font_03_sfnt_off0002b271.bin
351e1e5dbbd7e4dc962787ca4dc78d84d8744ddf6e88b375ce83586edde47a2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B271 7148 bytes
font_04_sfnt_off0002c721.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C721 6084 bytes
font_05_sfnt_off0002d6b6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D6B6 3752 bytes

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