Malicious PDF — malware analysis report

Static analysis result for SHA-256 670c44e65341351a…

MALICIOUS

PDF

188.5 KB Created: 2015-07-24 20:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 84818f640e70ccc0c7e965e3dc28705a SHA-1: 4996e37be500ae5c80f268d57495c75c7e257068 SHA-256: 670c44e65341351a2a8f7f2d9a9d6bbd590aae5b7ff8a64520ebbcf6f0108b70
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 suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution. No scripts were extracted, but the presence of a malicious link is a strong indicator 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%88%D0%B5%D0%B9%D0%BF%D0%B8%D0%BD%D0%B3+%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%B8%D0%BA+%D0%BE%D1%82+%D0%BC%D0%B5%D0%B6%D0%B4%D1%83%D0%BD%D0%B0%D1%80%D0%BE%D0%B4%D0%BD%D0%BE%D0%B9+%D1%84%D0%B5%D0%B4%D0%B5%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D1%88%D0%B5%D0%B9%D0%BF%D0%B8%D0%BD%D0%B3%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192469_skachat_yutub_na_nokia_5800.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191584_kimuy_egye_po_biologii_2015_s_otvetami.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185665_bot_dlya_instagram.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_off00024cdf.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CDF 3556 bytes
font_01_sfnt_off00025a62.bin
9d1760b58fdfc988aae50c205e22976e2e16bdcc316d88a526d23d7ac61a3d2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25A62 14740 bytes
font_02_sfnt_off0002886d.bin
12658dc14dcf6e6dc23370abf5b60f95f55548fb89ccc22118485a62dd2213c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2886D 14520 bytes
font_03_sfnt_off0002b33b.bin
4e9aa59ad9db8fab8732ebb268eab1f3971284efce678d288aa9c50d584d9c73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B33B 7164 bytes
font_04_sfnt_off0002c813.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C813 6084 bytes
font_05_sfnt_off0002d7a8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D7A8 3752 bytes

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