Malicious PDF — malware analysis report

Static analysis result for SHA-256 5aad835478ca6be8…

MALICIOUS

PDF

183.1 KB Created: 2015-07-23 21:09:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bad889d9ab5ef7d83ed0f6f6be6528dd SHA-1: dc13a7f5290e3ec3526ddc4186f1eec6a7626e40 SHA-256: 5aad835478ca6be82d74eb9c1ea6f1fd403766041a11780b8f43f3b41e4dd24f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to known malicious infrastructure, indicating a redirection attempt to a potentially harmful site. The ML classifier also flagged this PDF with high confidence. While no scripts were explicitly extracted, the PDF structure and embedded URL suggest an attempt to lure the user to a malicious domain, likely for phishing or malware distribution.

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+%D0%B2%D0%BE%D1%80%D0%B4+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184611_master_yeliksirov_335_gayd.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184290_razrabotka_urokov_v_nachalnuyh_klassah_v_uzbekistane.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184780_timur_rahmanov_vse_pesni_skachat_besplatno.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_off00023c67.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C67 3556 bytes
font_01_sfnt_off000249ea.bin
084d52483c78f1849c3918efb0cd302ff556e2e8a0f685570a9932bfc0c707fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249EA 13916 bytes
font_02_sfnt_off00027596.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27596 14468 bytes
font_03_sfnt_off0002a048.bin
59700261d82b0cb878534e5595df5314c48e8ef53bb02cd6ca7e12b1bcce94a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A048 6428 bytes
font_04_sfnt_off0002b291.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B291 6084 bytes
font_05_sfnt_off0002c226.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C226 3752 bytes

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