Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db04770250f0a0b…

MALICIOUS

PDF

185.7 KB Created: 2015-08-08 09:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b60df89bfc8b3e44b2049fdd1d3dadd6 SHA-1: 82ab36cb239b7cf4ce4887213e92a33479ff4a8a SHA-256: 1db04770250f0a0bc98b9285e01b980dabc123613e2856c4d75b46c21dc1c4d9
90 Risk Score

Malware Insights

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

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was not sufficiently readable to provide further context.

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%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9+%D0%BD%D0%B0+%D0%B4%D0%B5%D0%BD%D1%8C+%D1%80%D0%BE%D0%B6%D0%B4%D0%B5%D0%BD%D0%B8%D1%8F+11+%D0%BB%D0%B5%D1%82+%D0%B4%D0%B5%D0%B2%D0%BE%D1%87%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384064_windows_81_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384214_skachat_knigu_na_telefon_stalker_zov_pripyati.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384240_domovenok_kuzya_igra_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024330.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24330 3556 bytes
font_01_sfnt_off000250b3.bin
a0c39790da938327e5236a285d17d9cd6760798c1f0d9f4135d7c2d55f71d1e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250B3 14568 bytes
font_02_sfnt_off00027e80.bin
fbe4af72ea4b6832e02f3a94d39805fe74296d1f62d5d4f3c350b4dd983b7d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E80 14468 bytes
font_03_sfnt_off0002a92e.bin
a7aff6e22aa5f9367dd227672607a2a313d1850d078253b2cf5dd5b41a4f2b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A92E 6904 bytes
font_04_sfnt_off0002bd0d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD0D 6084 bytes
font_05_sfnt_off0002cca2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCA2 3752 bytes

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