Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b64a47e774c4917…

MALICIOUS

PDF

185.1 KB Created: 2015-07-25 23:08:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: edf34180e9fcc31a442789c71b046ff0 SHA-1: ed25fa9a46c5d12e32afc2ab584d332065f35198 SHA-256: 9b64a47e774c4917bcfc9e630ee037392959723b1bedd1e5da902ef0e98bd8f8
90 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, botcraftman.ru. This indicates the document is designed to lure users to a malicious site, likely for credential harvesting or to serve a second-stage payload. The ML classifier also strongly flagged this PDF as malicious.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%B9%D1%82%D1%8E%D0%BD%D1%81+%D0%B4%D0%BB%D1%8F+%D0%B0%D0%B9%D1%84%D0%BE%D0%BD%D0%B0+5+s&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200475_zadachi_po_matematike_6_klass_s_otvetami_i_resheniem.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200359_zvuki_v_formate_wav_proslushat_i_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192526_krasivuye_ramki_dlya_teksta_cherno_beluye.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a6e5.bin
2f244c6a0e3743563928254ec9f28ec174a3451c4030be82f5d9dd425e7d5dd7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A6E5 6844 bytes
font_00_sfnt_off00024059.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24059 3556 bytes
font_01_sfnt_off00024ddc.bin
614e0299e39cbd5e6ed994aedbf2bdaaa9959c3a97049d6e8ef01856165cbfa5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DDC 14792 bytes
font_02_sfnt_off00027bb3.bin
455228fcae8bbc74c7e5390bd48d7c814999587a3758332d2384ae2ad0382728		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BB3 14640 bytes
font_04_sfnt_off0002bab1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAB1 6084 bytes
font_05_sfnt_off0002ca46.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA46 3752 bytes

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