Malicious PDF — malware analysis report

Static analysis result for SHA-256 096c5cac5a1acb49…

MALICIOUS

PDF

185.0 KB Created: 2015-08-05 14:05:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 69e0cef2b1308b7617dd3e7c9f895e36 SHA-1: 3e08d1b2e05d5e3e72ccc8b7904e73ac0b060a78 SHA-256: 096c5cac5a1acb499d69c49ab010be2feff4200fd4c8eb250c5ca8524387adf1
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted, but the presence of a malicious redirector is sufficient evidence of a phishing or malware distribution attempt.

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+%D1%81%D1%82%D1%80%D0%B8%D0%BF+%D0%BF%D0%BB%D0%B0%D1%81%D1%82%D0%B8%D0%BA%D0%B0+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304662_klyuchi_k_igram_ot_alavar_forum.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304470_skachat_icq_5_na_kompyuter_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304890_koduy_oshibok_kondicionerov_dantex.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_off00024282.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24282 3556 bytes
font_01_sfnt_off00025005.bin
8c75ba2d4f319b94e4ec8c150ffd2bcbdd8f98220deeadf53d2b6f31bbae78db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25005 14576 bytes
font_02_sfnt_off00027d17.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D17 14468 bytes
font_03_sfnt_off0002a7c9.bin
10c70f3cc0a1dc06d19bbec37a9c46e002dd4eccb58e6ed0d515660add99dea7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7C9 6496 bytes
font_04_sfnt_off0002ba3e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA3E 6084 bytes
font_05_sfnt_off0002c9d3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9D3 3752 bytes

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