Malicious PDF — malware analysis report

Static analysis result for SHA-256 e664d8a5236fcc89…

MALICIOUS

PDF

187.4 KB Created: 2015-08-08 13:09:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e0c377c05eab5229ada52b21f2c05dd2 SHA-1: 3571fa1e72f0c607ed0b490824897a5839569a2a SHA-256: e664d8a5236fcc89a1c17f1dd100322ed075a2de8fe293b895beba04f74d4086
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was 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=%D0%B0%D0%BB%D0%B5%D0%BA%D1%81%D0%B0%D0%BD%D0%B4%D1%80+%D1%81%D0%BE%D0%BB%D0%BE%D0%BD%D0%B8%D0%BA+%D0%BA%D0%B8%D0%BB%D0%BB%D0%B5%D1%80+%D0%BC%D0%B0%D1%84%D0%B8%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384967_skachat_kryak_ot_theta_dlya_max_payne_3.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4389/4389025_skyrim_porno_moduy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391535_zagruzochnuyy_disk_windows_7_skachat_torrent_2013.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002473f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2473F 3556 bytes
font_01_sfnt_off000254c2.bin
0056807279a0ffb905ced3a8fc16b38c599d00893e96699d01423c51f6417784		 pdf-font-stream PDF embedded font (sfnt) at offset 0x254C2 15792 bytes
font_02_sfnt_off00028547.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28547 14468 bytes
font_03_sfnt_off0002aff9.bin
cd5787f2f5d237fe970fa3508a7b557f682d69e92e77e4ce6d2c499116a8d122		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFF9 6812 bytes
font_04_sfnt_off0002c3a0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3A0 6084 bytes
font_05_sfnt_off0002d335.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D335 3752 bytes

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