Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a5d0486ce1207fe…

MALICIOUS

PDF

184.1 KB Created: 2015-07-25 12:23:13 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 07c0ff8a337eacf5ccba5015efe543b5 SHA-1: c7183c1f87dc852a8b881bf729848e1f6e8bab98 SHA-256: 1a5d0486ce1207fe75177e25f245884972a9a3d7277e77c17f3c4d44aaea2a7a
90 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 infrastructure. The redirector URL is http://botcraftman.ru/?lip&keyword=%D0%BA%D1%80%D0%B5%D0%B4%D0%BE+%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. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery.

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%BA%D1%80%D0%B5%D0%B4%D0%BE+%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/5//4204/4204134_naruto_1_sezon_vse_serii_ozvuchka_2h2_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203074_skachat_igru_maynkraft_125_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200671_top_luchshih_programm_dlya_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f10.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F10 3556 bytes
font_01_sfnt_off00024c93.bin
22422d33d67e9a5853474d8e64c1e6debf182d74d459a34650af4fbed3ac7adb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C93 14132 bytes
font_02_sfnt_off00027949.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27949 14468 bytes
font_03_sfnt_off0002a3fb.bin
feb1a4fd58bbcbda7e95d12a802d531eadedec73f5d9bcc01ef46a724a858559		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3FB 6584 bytes
font_04_sfnt_off0002b6b4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6B4 6084 bytes
font_05_sfnt_off0002c649.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C649 3752 bytes

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