Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c390a86a5c30ef8…

MALICIOUS

PDF

187.9 KB Created: 2015-07-24 09:17:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9462f581669e3342bac382031c2a1945 SHA-1: 3498d11feee1eb9d5c462134b8ccfe8290d3a882 SHA-256: 5c390a86a5c30ef8e22bc75e1fb821189e44519f841be866838f34aebfaf222f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is likely intended to redirect the user to a malicious site, potentially for phishing or malware distribution. No scripts were extracted, but the presence of a malicious URL is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BF%D1%83%D1%82%D0%B5%D0%B2%D0%BE%D0%B4%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D0%BF%D0%BE+%D1%81%D1%82%D0%B0%D0%BC%D0%B1%D1%83%D0%BB%D1%83+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185495_maykl_gerber_predprinimatelskiy_mif_audiokniga.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184708_xray_16_engine_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185687_prikaz_fssp_rossii_377_ot_08072014.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_off00024a7c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A7C 3556 bytes
font_01_sfnt_off000257ff.bin
0b45d1987737cb11030bb5f171e44545440bf946f6ebebddde230234501f2faf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257FF 14996 bytes
font_02_sfnt_off00028644.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28644 14468 bytes
font_03_sfnt_off0002b0f6.bin
62f6487eda1d814650dc3694f1be82b02f14321a0ddf66ce0d1483af7b75c843		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0F6 7184 bytes
font_04_sfnt_off0002c5e9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5E9 6084 bytes
font_05_sfnt_off0002d57e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D57E 3752 bytes

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