Malicious PDF — malware analysis report

Static analysis result for SHA-256 826df01a057ea79e…

MALICIOUS

PDF

187.4 KB Created: 2015-08-08 11:35:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a99a7e448f56fd11ec30beeac5c3ea75 SHA-1: a83b763e7064ec88423493c5fd8b6644c7b844e2 SHA-256: 826df01a057ea79e60befca0202d42b4d00becc6c30c8844b95d69832de86d0b
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a critical heuristic indicating a malicious redirector link. The embedded URL, http://botcraftman.ru/..., is associated with malicious activity. While no scripts were explicitly extracted, the nature of the PDF and the malicious link suggest it is intended to lure the user to a compromised site, likely for further exploitation or phishing.

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+%D0%BB%D0%BE%D0%B2%D0%B8+%D0%B2%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8+%D0%B1%D0%B5%D0%B7+%D0%B2%D0%B8%D1%80%D1%83%D1%81%D0%BE%D0%B2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385149_skachat_igru_kvadratnuyy_mir.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386869_tekst_pesen_gorodnickogo.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385454_totalreader_skachat.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_off000249fd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249FD 3556 bytes
font_01_sfnt_off00025780.bin
5e6ece3b0ba30a125d2eac722e4030e151239d7badcc4ff9d2de23916b631bd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25780 14816 bytes
font_02_sfnt_off00028532.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28532 14468 bytes
font_03_sfnt_off0002afe4.bin
3f80f1bd672b1e7d8e7c63164e951595f742e6e09bf85395d7aa40dc016cc9c5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFE4 6916 bytes
font_04_sfnt_off0002c3e8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3E8 6084 bytes
font_05_sfnt_off0002d37d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D37D 3752 bytes

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