Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c9968b2a9a10f39…

MALICIOUS

PDF

186.5 KB Created: 2015-07-27 13:29:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ad3a4023612ab1d6d369932979bec4a0 SHA-1: 4a99ec74bd5d642d8a473530d95066abfc1bca11 SHA-256: 9c9968b2a9a10f391d13f6947997d1e7724ada9eb685fddb85a1c974c30fbdeb
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. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was not readable, 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%83+%D0%B4%D0%BB%D1%8F+%D1%81%D0%BE%D0%B7%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F+%D1%82%D1%80%D0%B0%D0%BD%D1%81+%D0%BC%D1%83%D0%B7%D1%8B%D0%BA%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4222/4222423_skachat_knigu_50_dney_do_moego_samoubiystva_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198108_testuy_po_terapii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4224/4224679_kryak_dlya_nero_7.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024529.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24529 3556 bytes
font_01_sfnt_off000252ac.bin
3242979d2111f26b42566ce986cf6c4e020faeed0454c1b1bdab465452cd8579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252AC 15104 bytes
font_02_sfnt_off000281b3.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281B3 14468 bytes
font_03_sfnt_off0002ac65.bin
6d4d1facd23c6acb12258f339911fde9429a4292c1b46268e8ba342616712f54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC65 6872 bytes
font_04_sfnt_off0002c051.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C051 6084 bytes
font_05_sfnt_off0002cfe6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFE6 3752 bytes

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