Malicious PDF — malware analysis report

Static analysis result for SHA-256 03c9acb6cab7e901…

MALICIOUS

PDF

185.7 KB Created: 2015-08-08 12:18:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 392ff1bb61fe6a589d661f0f3badf512 SHA-1: 4bdc3b294f2fdfc828df4aa34f9878e9a3f3344a SHA-256: 03c9acb6cab7e901f235e896c2699e6ae077f9cdd903612cde0b3e93dcb75113
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link to a known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was truncated and unreadable, limiting further analysis of the specific 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%B4%D0%B8%D1%82%D1%8F+%D0%BE%D0%BA%D1%82%D1%8F%D0%B1%D1%80%D1%8F+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385311_dogovor_arenduy_mesta_pod_reklamu.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386186_sekretnuye_koduy_nokia_5310.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385806_skachat_znaki_pozharnoy_bezopasnosti.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_off00024579.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24579 3556 bytes
font_01_sfnt_off000252fc.bin
c4009de0764aa014e30e7d0463906353db5a1367d3d4be887adf62185e390130		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252FC 14552 bytes
font_02_sfnt_off00027ffc.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FFC 14468 bytes
font_03_sfnt_off0002aaae.bin
2a6226bbeee71889b95643bb4ceb80a4f827e7805a30de98cddfaf07e715c1c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAAE 6496 bytes
font_04_sfnt_off0002bd21.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD21 6084 bytes
font_05_sfnt_off0002ccb6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCB6 3752 bytes

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