Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c58413e8dffd0f3…

MALICIOUS

PDF

189.4 KB Created: 2015-08-05 13:34:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0597b62202356115c15236640e95fdef SHA-1: f9d0d2aa29309de0c5be5f7671ec7fbb28bec7c4 SHA-256: 0c58413e8dffd0f3937980b348f35b43e55900106bc0ba0d189d8a70a8e9e6ba
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign, attempting to lure users to a harmful website. No scripts were extracted, but the presence of the malicious URL is a strong indicator 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=pra+killagramm+feat+%D0%BF%D0%BE%D1%8D%D1%82+%D0%B1%D0%B5%D0%B7+%D1%83%D1%81%D0%BE%D0%B2+%D0%BC%D1%8B%D1%88%D0%B5%D0%BB%D0%BE%D0%B2%D0%BA%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304523_3_ndfl_obrazec_zapolneniya_pri_pokupke_kvartiruy_vtoroy_god.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304438_personalizaciya_dlya_rabochego_stola_windows_7_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304439_shablon_lending_peydzh.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_off0002497f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2497F 3556 bytes
font_01_sfnt_off00025702.bin
2d5013f570774f21405d34a972e2885b9e8e745cac10f7e2be357ad099b7cbbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25702 15884 bytes
font_02_sfnt_off00028811.bin
f80d6eb9f08d162d86a428c161a9cdab8768a5ffd83336ac64e9360082229842		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28811 15040 bytes
font_03_sfnt_off0002b424.bin
d04b8e03aade798b660bd1c95068c6b1cd9b6eaf454c0c7c185c1a933d3bf48f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B424 7988 bytes
font_04_sfnt_off0002cbf0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBF0 6084 bytes
font_05_sfnt_off0002db85.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DB85 3752 bytes

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