Malicious PDF — malware analysis report

Static analysis result for SHA-256 57dddd5f6d6ddd41…

MALICIOUS

PDF

185.4 KB Created: 2015-08-08 12:24:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a0b558904490a0b98dcaf6d9b38ccc04 SHA-1: 051f800d18793e6913d0def0602985e01b674441 SHA-256: 57dddd5f6d6ddd41ab99ac6af37ffedb4f88343a3ee4d7cc0a9a51a8838e0aef
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The primary URL identified, http://botcraftman.ru/, is flagged as malicious. This suggests the document's purpose is to lure the user to this site, likely for phishing or to download further malicious content. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%8B+%D0%BD%D0%B0+%D0%B8%D0%B3%D1%80%D0%BE%D0%B2%D1%83%D1%8E+%D0%BA%D0%BE%D0%BD%D1%81%D0%BE%D0%BB%D1%8C+denn+801&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388441_skachat_igru_balda_na_kompyuter_na_russkom_yazuyke_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385242_proektuy_polutorayetazhnuyh_kirpichnuyh_domov.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383924_goluye_devushki_oboi_dlya_rabochego_stola.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024010.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24010 3556 bytes
font_01_sfnt_off00024d93.bin
8f7677254cfda0c6dd675849102f00641bd1dac92eee279eb61f6f80a9552038		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D93 14732 bytes
font_02_sfnt_off00027bc8.bin
d9d681fdcfa99ebb7a468d6374a29c823b0a4c8215ce231fb5de6496c316d215		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BC8 14468 bytes
font_03_sfnt_off0002a679.bin
f51d85039e0500fea77a4bfbfdfd23391fa4ac3d0df24d487695f7c491220436		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A679 7276 bytes
font_04_sfnt_off0002bbcc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBCC 6084 bytes
font_05_sfnt_off0002cb61.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB61 3752 bytes

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