Malicious PDF — malware analysis report

Static analysis result for SHA-256 41868dc0b56db137…

MALICIOUS

PDF

187.1 KB Created: 2015-08-06 18:53:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 33ab20b91a8eab2ee0d6b0479a9fd3f9 SHA-1: b37b2c1005fb287aab3ebddb6c17345fc2494396 SHA-256: 41868dc0b56db1375af5703fe85900f4dca95413845f02c56a77b063c6bb7358
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, botcraftman.ru. This indicates the document is designed to lure users to a malicious site, likely for phishing or malware distribution. The ML classifier also strongly flagged this PDF as malicious. 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=%D0%B8%D0%BD%D0%B4%D0%B8%D0%B0%D0%BD%D0%B0+%D0%B4%D0%B6%D0%BE%D0%BD%D1%81+%D0%B2%D1%81%D0%B5+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306483_uchebnik_po_tehnologii_5_klass_dlya_devochek.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305978_igruy_na_razdivanivanie_igrat_malchikov.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4311/4311290_a10_igruy_maynkraft_igrat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248ad.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248AD 3556 bytes
font_01_sfnt_off00025630.bin
752817ba4db62a8764dd96b952e3c9b40a7555ffb072e12d7d01a6956fbb4b97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25630 14132 bytes
font_02_sfnt_off000282ed.bin
23d6b651980d28cba5c3ab5ccb90388f6249ed2132b76a8927649775759f8dff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282ED 14468 bytes
font_03_sfnt_off0002ad9d.bin
11b4e559d7f3169056221c2e5f3d867560928d172780031203fb43f7a0e31d9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD9D 7172 bytes
font_04_sfnt_off0002c277.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C277 6084 bytes
font_05_sfnt_off0002d20c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D20C 3752 bytes

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