Malicious PDF — malware analysis report

Static analysis result for SHA-256 41fe77c220e4ef2e…

MALICIOUS

PDF

184.9 KB Created: 2015-08-05 18:00:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2b1d2456ae8c987b8ce5540aa5b02aef SHA-1: 0a1e50623cfbb28a4fde33bd684bd89c191797bc SHA-256: 41fe77c220e4ef2ed09fa0fa44e030e90bb9174980c9a0c67c9d47be956d4076
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, 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, and the document body was truncated, limiting further analysis of the exact lure.

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%B8%D0%B3%D1%80%D1%8B+%D0%BD%D0%B0+%D0%BD%D0%BE%D0%BA%D0%B8%D0%B0+%D0%B0%D1%88%D0%B0+502&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304628_spravka_dlya_rascheta_bolnichnogo_lista.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304739_doma_iz_pestovo_pod_klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304566_skachat_kartuy_dlya_navitel_2013_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024015.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24015 3556 bytes
font_01_sfnt_off00024d98.bin
00752108612f09f961310d8566fb42b8ac0fd16a8d4ca581e316b32ddd5a5712		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D98 14860 bytes
font_02_sfnt_off00027c12.bin
d84e04095826d0ccda617ba4ebd336937097ba86ec1568885c578dcd34dff4c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C12 14700 bytes
font_03_sfnt_off0002a767.bin
effc2b5b3096169b0a3937913c28cc1b40bc20d3e45aa8bfea742290e6880fb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A767 6496 bytes
font_04_sfnt_off0002b9e6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9E6 6084 bytes
font_05_sfnt_off0002c97b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C97B 3752 bytes

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