Malicious PDF — malware analysis report

Static analysis result for SHA-256 3686aa1ae8560691…

MALICIOUS

PDF

187.5 KB Created: 2015-07-24 20:32:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 277c17e438ace4de3bfa9414476bd089 SHA-1: 8cfe7c7ae592580b9aa50161c9899d77ae3ba19a SHA-256: 3686aa1ae8560691b85ef9599828cac36fbc5e5663832917922bac80b226381e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The primary IOC is the malicious URL embedded within the document, which likely serves as a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=%D0%BC%D0%B0%D0%B4%D0%B6%D0%BE%D0%BD%D0%B3+%D0%BF%D0%BE%D0%BA%D0%B5%D0%BC%D0%BE%D0%BD%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185404_ms_project_skachat_besplatno_russkaya_versiya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192243_dopolnitelnuye_figuruy_dlya_visio_2010_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187909_star_wars_the_old_republic_online_rusifikator_teksta.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a2b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A2B 3556 bytes
font_01_sfnt_off000257ae.bin
d8e0bbcc4f34b8923a3f8f27f8fcd5ad2637c191ef401935cd99e7920b242e52		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257AE 14472 bytes
font_02_sfnt_off00028488.bin
fbe4af72ea4b6832e02f3a94d39805fe74296d1f62d5d4f3c350b4dd983b7d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28488 14468 bytes
font_03_sfnt_off0002af36.bin
c8e58ac69109a08d0758fbcabc15e14080c4c4dcbf9ec930aa27e7495def6375		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF36 7220 bytes
font_04_sfnt_off0002c441.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C441 6084 bytes
font_05_sfnt_off0002d3d6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D3D6 3752 bytes

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