Malicious PDF — malware analysis report

Static analysis result for SHA-256 d30dfec34a97c0dd…

MALICIOUS

PDF

184.5 KB Created: 2015-08-08 10:40:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a997515a9be5931b457b8856407c059f SHA-1: a85663dd727eb34f2e9f805de8045f2028e5b7b2 SHA-256: d30dfec34a97c0dd2dfc1a15ae1ca577d0d2361fc0cfe661359fa89e7f16bcce
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, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download page. No scripts were extracted, and the document body was truncated and uninformative.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80+%D0%BA%D0%B0%D0%BC%D0%B0%D0%B7%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384359_kuda_podavat_zayavlenie_na_detskiy_sad.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385180_porttool_v1009_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384577_raspisanie_avtobusov_tolyatti_naberezhnuye_chelnuy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023fa7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FA7 3556 bytes
font_01_sfnt_off00024d2a.bin
b9f66e88e17a1c9523e03c329500c1159eb04dc6420508cba70e3ac18f9ce738		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D2A 14708 bytes
font_02_sfnt_off00027aef.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AEF 14468 bytes
font_03_sfnt_off0002a5a1.bin
2971c16a5e67d433b0007304278e367acdb658a03f69535b27579197b7ff399f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5A1 6544 bytes
font_04_sfnt_off0002b862.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B862 6084 bytes
font_05_sfnt_off0002c7f7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7F7 3752 bytes

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