Malicious PDF — malware analysis report

Static analysis result for SHA-256 f69b8f275c1f1f32…

MALICIOUS

PDF

187.4 KB Created: 2015-07-25 09:23:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d59dcf1c786bed26d811da3d4c729a4e SHA-1: 1b818bed31ce5a4e7ec372a0d85b32ade9971334 SHA-256: f69b8f275c1f1f32c89e06ff40a264ac9add6a4b70f3d24e13d6e39a88071903
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 the user 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%BF%D0%B5%D1%80%D0%B5%D0%B2%D0%BE%D0%B4+%D0%B1%D0%B8%D0%BB%D0%B5%D1%82%D0%BE%D0%B2+%D0%BF%D0%BE+%D0%B0%D0%BD%D0%B3%D0%BB%D0%B8%D0%B9%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187424_skachat_knigu_50_ottenkov_serogo_2_chast_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4199/4199854_skachat_igru_bakugan_na_kompyuter_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186606_skachat_igru_chuzhoy_protiv_hischnika_3_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002476a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2476A 3556 bytes
font_01_sfnt_off000254ed.bin
5d0de11d4ca6a8a0667bb6d92c7356ff5a8e9378a19215b6ce486b95e50c6bf8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254ED 14552 bytes
font_02_sfnt_off000282b2.bin
0d510f439a73eae665af138ecef4372c9b1dc55d02d5656a9604ccfb30fc5e3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282B2 14640 bytes
font_03_sfnt_off0002ade5.bin
f0ac0740b835181a26955b6e79cba6ced77c399e6da99b33f7e078200b95b003		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADE5 7484 bytes
font_04_sfnt_off0002c3ed.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3ED 6084 bytes
font_05_sfnt_off0002d382.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D382 3752 bytes

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