Malicious PDF — malware analysis report

Static analysis result for SHA-256 84e8e93ca3fa9e10…

MALICIOUS

PDF

183.5 KB Created: 2015-07-25 20:07:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c1f33dbf6f401255bc7e888a3d729981 SHA-1: c9760ad69a32ad089483adafe17907e9a83da5d7 SHA-256: 84e8e93ca3fa9e10cc630c4c471b6ccdb5fbbe038bd433b704b41c8a4f74213d
90 Risk Score

Malware Insights

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

The PDF file contains an embedded link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=indabattle+3+%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186783_reshu_egye_po_istorii_2015_onlayn.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195136_fitnes_gid_po_zhizni_skachat_fb2.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191760_kartuy_navitel_dlya_navigatora_explay_pn975_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023a52.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A52 3556 bytes
font_01_sfnt_off000247d5.bin
bd00b92b235ded2cb6a680b456308c36305494b99304a7d72f4524cbd2c73d00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247D5 14936 bytes
font_02_sfnt_off00027622.bin
2a96d8a862b6855ddccb8e7d333c214546e79c36898339e0262c6224e2a50eb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27622 14712 bytes
font_03_sfnt_off0002a18e.bin
eb8e023828e991f2dbde61d72785d566e0d40173d46ab072557804826ba71f78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A18E 6500 bytes
font_04_sfnt_off0002b41d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B41D 6084 bytes
font_05_sfnt_off0002c3b2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3B2 3752 bytes

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