Malicious PDF — malware analysis report

Static analysis result for SHA-256 f701998a76b48eca…

MALICIOUS

PDF

187.7 KB Created: 2015-07-27 14:03:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: dd37ada97808cd751bb24d047673b937 SHA-1: 3918b4939bb9e40c799ed24bb0ae71e7b8b8dd61 SHA-256: f701998a76b48eca01acdb3b996d29085540c84efe9000086cc3edd107d69a36
150 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is flagged by multiple heuristics. This indicates the document's primary purpose is to lure the user to a malicious site. The ClamAV detection as 'Pdf.Dropper.Agent' further supports this, suggesting it acts as a dropper for other malicious content. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8791641-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8791641-0
  • 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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D0%BC%D0%B0%D1%81+%D0%B8+%D0%B5%D0%B3%D0%BE+%D0%B4%D1%80%D1%83%D0%B7%D1%8C%D1%8F+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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//4225/4225955_aliyekspress_katalog_tovarov_na_russkom_yazuyke_v_rublyah.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196430_rezultatuy_egye_po_russkomu_yazuyku_2015_ivanovo.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192848_kamera_so_sputnika_onlayn_v_realnom_vremeni.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024b51.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B51 3556 bytes
font_01_sfnt_off000258d4.bin
0b6fac2f95e216f01464b7ce4defe3557575e4604556e68e337545ea762b5176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x258D4 14460 bytes
font_02_sfnt_off00028680.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28680 14468 bytes
font_03_sfnt_off0002b132.bin
31cc7b5fc851ec7e6873e905ff3c49f3e198cb5d822772aacdf0ff5bd1f4f78d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B132 6860 bytes
font_04_sfnt_off0002c518.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C518 6084 bytes
font_05_sfnt_off0002d4ad.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4AD 3752 bytes

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