Malicious PDF — malware analysis report

Static analysis result for SHA-256 512bfb28812f9105…

MALICIOUS

PDF

186.0 KB Created: 2015-07-23 20:31:54 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9fa80399dda21b0dc4ff8a8310670ce3 SHA-1: b3b183e32bc873d4016302df651ec40302f87536 SHA-256: 512bfb28812f910540a16b05d1c0a8f00a08c0fec6bd2fe2f71a7d022c907f8b
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is indicative of a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded link is sufficient to classify the attack pattern.

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=need+for+speed+nitro+%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://img0.liveinternet.ru/images/attach/c/5//4184/4184589_android_system_recovery_3e_instrukciya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184584_shema_kubik_rubika_3h3.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184378_algebra_7_klass_mordkovich_uchebnik_chitat_onlayn.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a9f6.bin
5b241fb6e3d937a3ee588d372f2e1cce14cfd2b61ce161af386c4c0186b71632		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A9F6 7048 bytes
font_00_sfnt_off00024369.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24369 3556 bytes
font_01_sfnt_off000250ec.bin
49050940c5c21d2b4d3dcd01385b9ae88dd8290ba827a2abdbb3b5686899f15e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250EC 14432 bytes
font_02_sfnt_off00027e59.bin
fbeca16d84c306dc8372976ccaadf738d06828247329908fc1018832e5b6cc9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E59 14728 bytes
font_04_sfnt_off0002be55.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE55 6084 bytes
font_05_sfnt_off0002cdea.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDEA 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.