Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fee3c4d33acd150…

MALICIOUS

PDF

187.5 KB Created: 2015-08-08 09:34:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 412f92874102800d692ba3a22120de90 SHA-1: 38dac2f2e38b3ecff94e21d0e4998b766b392e74 SHA-256: 5fee3c4d33acd150de7fa40c2aaaab98b2671b14bf0bb6160e9f5d1b8bf4dab0
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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, likely for phishing or to download further malware. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

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+%D1%81%D1%82%D0%B0%D0%BB%D0%BA%D0%B5%D1%80+%D0%B8%D1%81%D0%BF%D0%BE%D0%BB%D0%BD%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+%D0%B6%D0%B5%D0%BB%D0%B0%D0%BD%D0%B8%D0%B9+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//4383/4383778_tekst_pesni_banana_mama.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383832_programma_dlya_vhoda_v_chuzhoy_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383787_triton_akvariumnuyy_soderzhanie.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a41.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A41 3556 bytes
font_01_sfnt_off000257c4.bin
9a164f267db4fadbcafea21cefc7218fae7876052a02db546c7e3033ecb358ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257C4 14592 bytes
font_02_sfnt_off0002858a.bin
4bda50202074b221a42e4115df177689dee362357292e09bd5fafe6fd94cb923		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2858A 14468 bytes
font_03_sfnt_off0002b03c.bin
670da67c4a3feadd562c3c4443a7ffb67b75fe93bd5b7dd6e577b7910e9d789c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B03C 6920 bytes
font_04_sfnt_off0002c43b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C43B 6084 bytes
font_05_sfnt_off0002d3d0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3D0 3752 bytes

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