Malicious PDF — malware analysis report

Static analysis result for SHA-256 f15e853d39a0c1ff…

MALICIOUS

PDF

185.9 KB Created: 2015-07-25 09:35:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1e2d7c6a3efdef9d673a04437ba113e5 SHA-1: e5d46b8ec1729177e32b62575fcafc7ebf308f3d SHA-256: f15e853d39a0c1ff22f15bc68f80e487f13d232c2b3045c6b1e901ce10ec941c
90 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. This suggests the document's primary purpose is to lure users to a harmful website.

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%B1%D1%80%D0%B8%D1%82%D0%BD%D0%B8+%D1%81%D0%BF%D0%B8%D1%80%D1%81+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187576_ya_smotryu_na_tebya_iryene_kao_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200453_pelink_dc_597_rus_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191088_yeroticheskie_priklyucheniya_treh_mushketerov_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000244ef.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x244EF 3556 bytes
font_01_sfnt_off00025272.bin
4ddda647a456e3819c9a3bf4ca680e82e79dc7579a42781c4d4a333950ba7a63
pdf-font-stream PDF embedded font (sfnt) at offset 0x25272 14508 bytes
font_02_sfnt_off00027fd8.bin
a9770cbb19a982a1ca245ae9dd57c2ebe78e8510dfe5e68aa43f25edc86204a3
pdf-font-stream PDF embedded font (sfnt) at offset 0x27FD8 14468 bytes
font_03_sfnt_off0002aa8a.bin
4a5ef4e05b6b7316301a930d8f547634072c1a32dbf9da65c87c0b12e1304a14
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA8A 6672 bytes
font_04_sfnt_off0002bda0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDA0 6084 bytes
font_05_sfnt_off0002cd35.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD35 3752 bytes