Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbcc6984531b3efc…

MALICIOUS

PDF

185.6 KB Created: 2015-07-23 21:02:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0d5d32c86dff0f9a38d5e484db25f9e5 SHA-1: 947e658a0e3a442d62730925b091a3b957ff318b SHA-256: dbcc6984531b3efc531af54ea47fcf34032d69f78f807d590e5ac64e2d026d48
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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+%D0%BF%D0%B5%D1%81+2015+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184618_otvetuy_na_biletuy_po_promuyshlennoy_bezopasnosti_rostehnadzor.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184668_ati_mobility_radeon_hd_4570_drayver_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184515_skachat_vse_albomuy_atb_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024182.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24182 3556 bytes
font_01_sfnt_off00024f05.bin
48cd922742819b93e429604b9799da30abca87ecf8bcc12aaf312ab2730729cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F05 15276 bytes
font_02_sfnt_off00027e0e.bin
20022a3da58261568a1d07c35df999c175b04708c1971dcb570f4eed8bc8d7ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E0E 14640 bytes
font_03_sfnt_off0002a944.bin
d8d4e243d9335476b5b81e571878a6ae70b549615d85e7f76b320b055f94dfa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A944 6664 bytes
font_04_sfnt_off0002bc71.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC71 6084 bytes
font_05_sfnt_off0002cc06.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC06 3752 bytes

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