Malicious PDF — malware analysis report

Static analysis result for SHA-256 df6162cbfa011266…

MALICIOUS

PDF

185.0 KB Created: 2015-07-25 19:31:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 283425b754f9f0a0f162834eaffabe8d SHA-1: 441e385dcd01b90f722941aa8233cbfc80a785ac SHA-256: df6162cbfa011266f4ee3464888feedd3acaa445f6e33ab7a5ac333f46c6b807
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was not parsable.

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+windows+7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+x64&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4201/4201845_tkp_453022312011_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204671_kartuy_dlya_yandeks_navigatora_android_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184937_skachat_sbornik_kabriolet_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a638.bin
60cc1bdb07ed326b15af9ba37f9d763a6007f8977e739ccd3141a854fcbce52e		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A638 6952 bytes
font_00_sfnt_off00023e4d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E4D 3556 bytes
font_01_sfnt_off00024bd0.bin
5c3e6b6b2d4e1e48f099d72001b70412e7a4f24883ecda73d1b3727d06e5d3de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BD0 15044 bytes
font_02_sfnt_off00027ad7.bin
4f45a87fb5d058aaed567f5b213bfe067f956952184b3146224c977fd71a47b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AD7 14648 bytes
font_04_sfnt_off0002ba65.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA65 6084 bytes
font_05_sfnt_off0002c9fa.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9FA 3752 bytes

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