Malicious PDF — malware analysis report

Static analysis result for SHA-256 be37390fc3d35df2…

MALICIOUS

PDF

187.0 KB Created: 2015-08-08 10:50:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cc06091d359df72170d1b694064a0009 SHA-1: cd94a4f7af5fa7633013936b5f7fd03291660e9a SHA-256: be37390fc3d35df2cfdb41ca7794b29d5e2de24ae3e8b49e5d0014877bd37ceb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 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 classified as malicious. This suggests the document's primary purpose is to lure the user to a harmful site.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%8B+%D0%B0%D0%BB%D0%B0%D0%B2%D0%B0%D1%80+%D0%B1%D0%B5%D0%B7+%D0%BE%D0%B3%D1%80%D0%B0%D0%BD%D0%B8%D1%87%D0%B5%D0%BD%D0%B8%D1%8F+%D0%B2%D1%80%D0%B5%D0%BC%D0%B5%D0%BD%D0%B8+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385923_heroes_of_might_and_magic_6_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383821_d3dx9_31dll.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384631________isarcextract.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024570.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24570 3556 bytes
font_01_sfnt_off000252f3.bin
2abbc69a3e5c380ff0ed404c1ea724e753a5484437ee18e3c971cc15e6a17a22		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252F3 15632 bytes
font_02_sfnt_off00028319.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28319 14468 bytes
font_03_sfnt_off0002adcb.bin
b8040a46d86e89f70b6b4b0af87a25972047634dc66460597e2856b94afc09c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADCB 6996 bytes
font_04_sfnt_off0002c20c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C20C 6084 bytes
font_05_sfnt_off0002d1a1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1A1 3752 bytes

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