Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd573910ff161258…

MALICIOUS

PDF

186.2 KB Created: 2015-07-24 03:56:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2432ab9e1274a14ee05c96596ad1b921 SHA-1: be9f2c09fb85311421b7fa69fee72c8c07e2696e SHA-256: dd573910ff161258475aa58659f79ad784ae01ea3e867459b1540d2828e4d1d4
92 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. No scripts were extracted, but the presence of the malicious link suggests the document is designed to lure users to a harmful destination.

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=%D0%92%D1%80%D0%B5%D0%BC%D1%8F-%D1%82%D0%BE%D0%BA%D0%BE%D0%B2%D1%8B%D0%B5+%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%B8+%D0%B0%D0%B2%D1%82%D0%BE%D0%BC%D0%B0%D1%82%D0%B0+%D0%B03134&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184741_skachat_programmu_dlya_nakrutki_lyudey_v_gruppu_vkontakte.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185534_hodyachie_mertvecuy_1_sezon_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185602_flesh_pleer_dlya_nokiya_s601.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
f628f002bfc58dfba9f291602a162b8168fda02682ed7f40548b6cb57823612f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252F3 14300 bytes
font_02_sfnt_off00028026.bin
6021102bc6f7d25dac9d77e99de5ba38e759b937da6503cfdd8c3aed23e6dde9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28026 14748 bytes
font_03_sfnt_off0002ab2f.bin
51d06f5c1b920bb391005f62b667fa7142341ab2e5341ea93e29108858ea1ec7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB2F 6824 bytes
font_04_sfnt_off0002bee0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEE0 6084 bytes
font_05_sfnt_off0002ce75.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE75 3752 bytes

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