Malicious PDF — malware analysis report

Static analysis result for SHA-256 129e9259fdbe9b32…

MALICIOUS

PDF

184.5 KB Created: 2015-08-08 10:51:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f539efc39230fffe10ef2424c6b87f01 SHA-1: 7893b31e0eece3fe952f52b39f65bec283eefb0b SHA-256: 129e9259fdbe9b322d3f1f2e79bffeeba31d0974f90e87202c8dd23e0c130ea9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirects, suggesting the document's purpose is to lure users to a harmful site.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B2%D0%B0%D0%B9%D1%84%D0%B0%D0%B9+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386272_koduy_oshibok_na_kaline.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385663_notuy_dlya_fortepiano_coldplay_paradise.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384180_skachat_igru_maynkraft_095_na_android_besplatno.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_off00024064.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24064 3556 bytes
font_01_sfnt_off00024de7.bin
4400e48520daa20011a767a58a6f9a966d6fce35a2f8b9f9865e861af0e39169		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DE7 14560 bytes
font_02_sfnt_off00027b37.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B37 14468 bytes
font_03_sfnt_off0002a5e9.bin
aa0b1707043d8daf95c97c222058f16287ec815acd7633754c86a28d72c9d729		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5E9 6436 bytes
font_04_sfnt_off0002b838.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B838 6084 bytes
font_05_sfnt_off0002c7cd.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7CD 3752 bytes

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