Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9f2c1cf02588d6e…

MALICIOUS

PDF

186.8 KB Created: 2015-07-27 05:32:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 07b3f91e2a498f11fafbcd76e57417ac SHA-1: acbc93253c77c6cdd1852c2397d5cf45b8f78aa9 SHA-256: c9f2c1cf02588d6e42f3f0598e9c42a63ed9136cc24f5e1e722f0afb64f0a275
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The primary IOC is the malicious URL, which is likely used to redirect the user to a site hosting malware or a phishing page. No scripts were extracted, and the document body was not parsable.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+%D0%BB%D0%B5%D0%B3%D0%BE+%D0%B1%D1%8D%D1%82%D0%BC%D0%B5%D0%BD+3+%D0%BF%D0%BE%D0%BA%D0%B8%D0%B4%D0%B0%D1%8F+%D0%B3%D0%BE%D1%82%D1%8D%D0%BC+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4222/4222740_koduy_strok_buhgalterskogo_balansa_dlya_maluyh_predpriyatiy_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4196/4196823_rus_2_total_war_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189647_shararam_chituy_na_shararam_karta.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246e2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246E2 3556 bytes
font_01_sfnt_off00025465.bin
c9eb9a72ea9f6fd356067d103d3cec3c00cc22bbf2f7095aa3d23126256ced11		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25465 14620 bytes
font_02_sfnt_off000281e8.bin
e86887f6fc507e38d6662a8cfabcd2499cf08be9abb5b61660facb4e5fe932c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281E8 14468 bytes
font_03_sfnt_off0002ac98.bin
0483cabed14f7a01631c95934ad03a9ecee36724bc355486ee64909fee7c414b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC98 7156 bytes
font_04_sfnt_off0002c187.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C187 6084 bytes
font_05_sfnt_off0002d11c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D11C 3752 bytes

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