Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe6d637528dfd7a1…

MALICIOUS

PDF

185.0 KB Created: 2015-08-08 10:40:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 032d4ea58be13fe8584f8fec2ca7e246 SHA-1: 712a459730a13ec25b826333d349004b29e8a4a0 SHA-256: fe6d637528dfd7a1decfe10446db2e2e930f228c3821e3940d59fa726fc46a07
90 Risk Score

Malware Insights

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

The PDF was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was not readable, limiting further analysis of the specific 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=%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D1%8B%D0%B9+%D0%B6%D1%83%D1%80%D0%BD%D0%B0%D0%BB+%D1%84%D0%BB%D0%B0%D0%B9+%D0%BB%D0%B5%D0%B4%D0%B8+%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385555_samolet_letit_v_rossiyu_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383735_primeruy_dlya_doshkolnikov_67_let_raspechatat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385877_skachat_patch_dlya_stalker_ten_chernobuylya_10007.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241fd.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241FD 3556 bytes
font_01_sfnt_off00024f80.bin
5ced8357469b6d9c5ecee3b5730fff1a960dc333c9d386ed844077309dacaf95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F80 13920 bytes
font_02_sfnt_off00027b34.bin
4706a9723ec8daee1a275d5ce084264f6043451f5861fa4ae23732dbba8aefe8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B34 14520 bytes
font_03_sfnt_off0002a601.bin
a87ece6043bfb530dec94db5bd57391eec2f389128233c6707e270bd1bcf5e8a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A601 6992 bytes
font_04_sfnt_off0002ba22.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA22 6084 bytes
font_05_sfnt_off0002c9b7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9B7 3752 bytes

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