Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e234fc52cf83479…

MALICIOUS

PDF

186.5 KB Created: 2015-07-24 15:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6869b10c85bc85a2aebd64734e61daa6 SHA-1: 9621831e2218edd4182868aec435ce5c7ea8d8f9 SHA-256: 7e234fc52cf8347910c11251813e427b88a93c40e5827f1b9efb12e4936bba65
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 campaign or used for malware distribution. No scripts were extracted, but the presence of a malicious URL is a high-confidence 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=%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD+%D0%9A%D0%BE%D1%80%D0%BE%D0%BD%D1%8B+%D0%98%D0%B7+%D0%91%D1%83%D0%BC%D0%B0%D0%B3%D0%B8+%D0%A0%D0%B0%D1%81%D0%BF%D0%B5%D1%87%D0%B0%D1%82%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187068_perevodnoy_yekzamen_po_informatike_10_klass.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190995_skachat_moduy_dlya_stalkera_teni_chernobuylya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188325_skachat_adobe_premiere_pro_cs6_rus_torrent_32_bit.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_off00024501.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24501 3556 bytes
font_01_sfnt_off00025284.bin
c312a08f87d688e604942b9c2cd20dff0d797c45d4b1c18a5c09b4d17277f460		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25284 14896 bytes
font_02_sfnt_off000280b4.bin
a447ea5210c19c25deea586957eeffb1f117a0eea77c2bf3f8ae90b08a0e5de8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280B4 14520 bytes
font_03_sfnt_off0002ab8f.bin
b8e039d15408b94fb19263219190e2bc25459b04f4ce1b4fb90b88f7aa1b53ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB8F 7132 bytes
font_04_sfnt_off0002c041.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C041 6084 bytes
font_05_sfnt_off0002cfd6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFD6 3752 bytes

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