Malicious PDF — malware analysis report

Static analysis result for SHA-256 60b858cbab8ef110…

MALICIOUS

PDF

184.0 KB Created: 2015-07-27 08:43:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 68c4c7dbaad03282018a85c1a6e59d92 SHA-1: efe847ecd43d7d9fdcbfc8190abe32f5ef0024fb SHA-256: 60b858cbab8ef110fc195cb34f84462c8197e457cd8b7f6017c92b4d6d7738c9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link identified as a malicious redirector. The ML classifier also flagged this PDF with high confidence. The link likely leads to a site designed to host further malicious content or phishing pages. No scripts were extracted, but the presence of a 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%D1%82%D0%B0%D0%BB%D0%BA%D0%B5%D1%80+%D0%BA%D0%BE%D0%B4%D1%8B+%D1%82%D0%B5%D0%BD%D1%8C+%D1%87%D0%B5%D1%80%D0%BD%D0%BE%D0%B1%D1%8B%D0%BB%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197399_skachat_aleks_lesli_zhizn_bez_trusov.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4214/4214963_anno_2070_deluxe_edition_kryak.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4206/4206511_ikonki_dlya_1s_82_skachat.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_off00023dc3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DC3 3556 bytes
font_01_sfnt_off00024b46.bin
692c478b74433108c5baa9b411a5367edc0077bb42c2ebb57013e346d46e965d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B46 14484 bytes
font_02_sfnt_off00027873.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27873 14468 bytes
font_03_sfnt_off0002a325.bin
c41c574801d151a69e5caf2cafe510c9a4ad0580d8f947ec13f0f45c9e81e55b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A325 6628 bytes
font_04_sfnt_off0002b619.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B619 6084 bytes
font_05_sfnt_off0002c5ae.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5AE 3752 bytes

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