Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ef0c1e6485064fe…

MALICIOUS

PDF

185.8 KB Created: 2015-08-08 13:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2a38f3e6cbe2b1e427f0887bcfb9409e SHA-1: e160a1fc927d47dd690242c281b275ab28316e8a SHA-256: 8ef0c1e6485064fe5b29d5519e288b2a8c746c3713146ece488ffc81a0159f9f
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely a lure designed to redirect users to a malicious site. The primary IOC is the malicious redirector URL, which is likely used to host further malicious content or phishing pages.

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%B8%D0%B3%D1%80%D1%83+%D0%BB%D1%8E%D0%B4%D0%B8+%D0%B8%D0%BA%D1%81+2+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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/6//4387/4387555_raspisanie_avtobusov_sobinka_vladimir.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388117_ne_vidit_set_wifi_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384538_skachat_filmuy_besplatno_2015_goda_novinki_v_horoshem_kachestve.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243f0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243F0 3556 bytes
font_01_sfnt_off00025173.bin
391d6a5c663c2d5a66856262a8eefa7461857d54b9a426b66a50cf84c64ef66f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25173 14472 bytes
font_02_sfnt_off00027ecf.bin
3d3159d6e20db2fc1d6f574969675a710d92c1cb0809ee626a549cd4cf384224		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ECF 14468 bytes
font_03_sfnt_off0002a980.bin
77b9f86b972a5fd86879a4dd13f2ca8cd87f391c3b333d0fe4f8d375f6f119c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A980 6808 bytes
font_04_sfnt_off0002bd3d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD3D 6084 bytes
font_05_sfnt_off0002ccd2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCD2 3752 bytes

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