Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b9ef662bf99293d…

MALICIOUS

PDF

186.7 KB Created: 2015-07-24 09:01:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 42613db82d7935aaad8f2a60d758c24d SHA-1: 8472c125086c671e56e019b6783ed0b04dd7f813 SHA-256: 4b9ef662bf99293dac011b241a2e14c2e8c65805f5a61e22d0d1f6f54f0dbf30
60 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing or malware distribution attempt. The file was generated by wkhtmltopdf, which is sometimes used to package malicious content.

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=%D1%8D%D0%B9%D0%B4%D0%B5%D1%82%D0%B8%D0%BA%D0%B0+%D1%81%D0%B0%D0%BC%D0%BE%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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://img1.liveinternet.ru/images/attach/c/5//4187/4187788_adobe_flash_cs6_skachat_torrent_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185308_vuykroyki_chehlov_na_vaz_2110.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184452_skachat_ze_kryu_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024633.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24633 3556 bytes
font_01_sfnt_off000253b6.bin
3793883c8a406fd59c141939f9a9809c81328e131ddde42aaccfe6223ff79a81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253B6 15060 bytes
font_02_sfnt_off00028271.bin
ed99dd93dfa93b840ea91ddcbc889f8b09649a34036244f3311826b317b6af35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28271 14692 bytes
font_03_sfnt_off0002add4.bin
aa9930e04077adb0306b8f409200b6fe16887fdfe2a71ec9d81094e43f2c6205		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADD4 6748 bytes
font_04_sfnt_off0002c12a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C12A 6084 bytes
font_05_sfnt_off0002d0bf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0BF 3752 bytes

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