Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff2b7d80a94836b4…

MALICIOUS

PDF

183.4 KB Created: 2015-08-08 10:37:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9f17d6a8f3a69d5e942fec61e226df2d SHA-1: c611fc043afdac31e7e0bb67e7521e320d0105ef SHA-256: ff2b7d80a94836b4c7e024905621c07d9e5a31941085b80648621682182f3ece
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a malicious redirector link to 'http://botcraftman.ru/'. This URL is likely used to lure the user to a malicious site for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B+%D0%B4%D0%BB%D1%8F+obd2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385729_programma_excel_obuchenie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385174_poezd_kievdoneck_hunday_raspisanie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385684_kniga_gastronoma_pro_myaso_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c61.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C61 3556 bytes
font_01_sfnt_off000249e4.bin
9e470ad20c623f4797fe5cda18910c8295dd48ba63666fe4eb2b6b96ce527bbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249E4 14232 bytes
font_02_sfnt_off00027669.bin
27a622de652488afb7d5750247254f60c6f94b21a403aa6672dfbc69ec4e6104		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27669 14596 bytes
font_03_sfnt_off0002a17d.bin
b6efa49e2affb1516a5d572d24eb86ff3ef8b3949ab20b37950716f3e6fe0b02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A17D 6468 bytes
font_04_sfnt_off0002b3e3.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B3E3 6084 bytes
font_05_sfnt_off0002c378.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C378 3752 bytes

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