Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f8d80967d1286ac…

MALICIOUS

PDF

186.1 KB Created: 2015-07-24 23:18:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9b47661705f3dc4602b6b1ce354260ea SHA-1: 086da4b82d90b65e7ae89f3890c61d302bfd79c1 SHA-256: 0f8d80967d1286acdb2aaf9e8b8dc55cb7a40ab0dfa162dfc7ad2c11a8baa7da
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, 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, but the embedded URL is sufficient evidence of malicious intent.

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%B5%D1%80%D0%B8%D0%B0%D0%BB+%D1%80%D0%B0%D0%BD%D0%B5%D1%82%D0%BA%D0%B8+3+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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/5//4193/4193135_kartinki_vashe_dezhurstvo_po_podezdu.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187318_skachat_simsimi_na_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185702_skachat_dvd_dekoder_dlya_windows_7.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_off000244c8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x244C8 3556 bytes
font_01_sfnt_off0002524b.bin
efda5a94aebd536e77b559f16106920d8d0dbaf893f03cbbfc42dd443046f21d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2524B 14976 bytes
font_02_sfnt_off0002811a.bin
8fcb0373def2089f4050d604114efab1fb90fd41090bcaab965e0072af246115		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2811A 14468 bytes
font_03_sfnt_off0002abc6.bin
54d052165a54b21df57a643824884a623bccd31ff2fea1795b681550826eaea9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABC6 6528 bytes
font_04_sfnt_off0002be69.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE69 6084 bytes
font_05_sfnt_off0002cdfe.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDFE 3752 bytes

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