Malicious PDF — malware analysis report

Static analysis result for SHA-256 41467c084933f27a…

MALICIOUS

PDF

185.9 KB Created: 2015-07-25 02:44:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e213bdcb72a49c8d202092775f947114 SHA-1: 1a3a97f96dedd49ab85065ef3248bc9ad56ac7bb SHA-256: 41467c084933f27a0b5483a1bd5280dcbac70662c06bfa2225e4195e7d8369ba
152 Risk Score

Malware Insights

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

The PDF document was flagged by multiple heuristics, including a critical finding for a link 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 PDF is designed to lure users to a harmful website, likely for phishing or malware delivery.

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-8786618-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786618-0
  • 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+%D0%B2%D1%81%D0%B5+%D1%87%D0%B0%D1%81%D1%82%D0%B8+%D0%B3%D0%B0%D1%80%D1%80%D0%B8+%D0%BF%D0%BE%D1%82%D1%82%D0%B5%D1%80%D0%B0+%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//4191/4191017_skachat_mod_na_maynkraft_152_na_poezda.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189328_skanvorduy_onlayn_besplatno_teschin_yazuyk.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194829_blank_dogovora_kupliprodazhi_avtomobilya_2013_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245eb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245EB 3556 bytes
font_01_sfnt_off0002536e.bin
5f77a3a52f455bddedead52d7b154eccb442f49b2f577085d86fc72800dea822		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2536E 14532 bytes
font_02_sfnt_off000280f4.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280F4 14468 bytes
font_03_sfnt_off0002aba6.bin
9a49a496a392f0b5a79fb3d14caa50cd99094786bc1c764eddb7b1372537c2ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABA6 6424 bytes
font_04_sfnt_off0002bddc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDDC 6084 bytes
font_05_sfnt_off0002cd71.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD71 3752 bytes

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