Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c41f3c92695d1e6…

MALICIOUS

PDF

183.8 KB Created: 2015-08-08 13:20:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ec901bab6507fa71891c7e62417d6f58 SHA-1: acdde54b222523d9dc01f2f9b98c6748be3a2315 SHA-256: 3c41f3c92695d1e66f71e5d3f6b48c086a4a2a8c6838b84c869f107124994a9a
92 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 an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the specific 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=ati+mobility+radeon+hd+5470++windows+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391374_skachat_maynkraft_199_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387583_skachat_kartinki_devushki_s_oruzhiem.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387919_moy_nezhno_lyubimuyy_detektiv_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a142.bin
559be2cff6071ae04bd64f23cbe6b5ee2a4f2022d3f5047aabe66953b74cfd5c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A142 6924 bytes
font_00_sfnt_off00023a0a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A0A 3556 bytes
font_01_sfnt_off0002478d.bin
eb7cd7aabb1686dc671b0a2c36b3f08cc145ff44f1690dde9658e32ad13e4ae0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2478D 14408 bytes
font_02_sfnt_off0002743f.bin
b0045741cb8798f1a3735290ee89b28021b499d875eff318e5d8e1fcd816f2e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2743F 15268 bytes
font_04_sfnt_off0002b561.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B561 6084 bytes
font_05_sfnt_off0002c4f6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4F6 3752 bytes

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