Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb030dd1962c492d…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 10:51:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a3d1ff2d4625c88fb6dc2c7977292399 SHA-1: 0ba65e46971bdfd51c85ceb88136e2d14fff46b8 SHA-256: eb030dd1962c492d123af92ccd86719faa95cfa38f7b14d83fe193362a8b09a8
90 Risk Score

Malware Insights

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

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 identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a potentially harmful website.

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+%D1%84%D0%B8%D0%B7%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B9+%D1%81%D0%B8%D0%BC%D1%83%D0%BB%D1%8F%D1%82%D0%BE%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384841_3_kniga_50_ottenkov_svoboduy_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384565_ram_charan_tedzha_vse_filmuy_na_russkom_yazuyke.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386598_skachat_russkiy_ryep_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024100.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24100 3556 bytes
font_01_sfnt_off00024e83.bin
b7ad241b003e2ec498f86593b25b409bab2ebbac038d893300ef232e133fb21e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E83 14308 bytes
font_02_sfnt_off00027b4d.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B4D 14468 bytes
font_03_sfnt_off0002a5ff.bin
aedb60fd140c1bdbc0b71ac5358f461a20a5d62828657e5abd9598415b850a70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5FF 6916 bytes
font_04_sfnt_off0002ba06.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA06 6084 bytes
font_05_sfnt_off0002c99b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C99B 3752 bytes

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