Malicious PDF — malware analysis report

Static analysis result for SHA-256 e03b13eb35ace00a…

MALICIOUS

PDF

184.6 KB Created: 2015-07-27 00:47:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: dba44e6b646994a8cf6c6b276ec2858d SHA-1: 0d8aff68da0af7370710942a1eee1d355252ebe5 SHA-256: e03b13eb35ace00aea5cd86b3dfe3b93c1f90b25d55c1c230caac5108f0e0e33
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The primary IOC is the malicious URL, which is likely used to direct users to a harmful destination. No scripts were extracted, and the document body was not sufficiently informative to determine a 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=%D1%84%D0%B5%D0%B9%D1%81+%D1%80%D0%B8%D0%B3+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4203/4203289_skachat_vzlomannuyu_hungry_shark.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197060_sinking_simulator_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203846_fayl_shlema_zheleznogo_cheloveka_dlya_pepakura_viewer.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024039.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24039 3556 bytes
font_01_sfnt_off00024dbc.bin
66172fa3c50e8af2e55610cd94d6feb5d95d9b19cbd826bb9477b0b7e838ac4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24DBC 14912 bytes
font_02_sfnt_off00027bbd.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BBD 14468 bytes
font_03_sfnt_off0002a66f.bin
7e6794132f02c28f5f74a96b064d92157aaee88033344023ce417f0a90e06cc4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A66F 6384 bytes
font_04_sfnt_off0002b877.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B877 6084 bytes
font_05_sfnt_off0002c80c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C80C 3752 bytes

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