Malicious PDF — malware analysis report

Static analysis result for SHA-256 6cfa42713f522dcd…

MALICIOUS

PDF

184.1 KB Created: 2015-08-08 11:32:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f0120eb83a5687ba88a66783ee9e9ea3 SHA-1: 9cedd87ba18a6964732b253cf2dbabff7e177707 SHA-256: 6cfa42713f522dcde4f8e3ef4a7433a5e4c6415f56d731f83ff3369462ee53b2
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. 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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D0%BA%D0%B0%D1%82%D1%8F+%D0%BE%D0%B3%D0%BE%D0%BD%D0%B5%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386209_zbrush_4r5_x64_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4227/4227516_skachat_igruy_tri_v_ryad_besplatno_polnuye_versii_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386425_open_kids_vazhno_tekst_pesni.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_off00023e34.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E34 3556 bytes
font_01_sfnt_off00024bb7.bin
f4ad45ef136e678164e545238d925c12b838e0828c8f2ded9a3c0ea443ec0886		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BB7 14580 bytes
font_02_sfnt_off00027923.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27923 14468 bytes
font_03_sfnt_off0002a3d5.bin
5d61ebc36d75428335d6c3a22c8ace87f1ca50bae9caab740305a1ea3a01c9a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3D5 6616 bytes
font_04_sfnt_off0002b6c4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6C4 6084 bytes
font_05_sfnt_off0002c659.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C659 3752 bytes

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