Malicious PDF — malware analysis report

Static analysis result for SHA-256 88c5860205589b8e…

MALICIOUS

PDF

185.6 KB Created: 2015-07-24 05:13:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c83fd80859287d9535ec32cb1f0ff7c3 SHA-1: ff672572b3b8faf0ed0ce7feb94f5f100ba42eea SHA-256: 88c5860205589b8e971e20454f689ff19f8bdd810c5a4b0684cf30ea701847b3
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document 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 to a phishing or malware download page. No scripts were extracted, but the presence of a malicious link suggests an attempt to trick the user into navigating to a harmful site.

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%BF%D1%83%D1%82%D0%B5%D0%B2%D0%BE%D0%B9+%D0%BB%D0%B8%D1%81%D1%82+%D0%BD%D0%B0+%D0%BC%D0%B5%D1%81%D1%8F%D1%86+%D0%B1%D0%BB%D0%B0%D0%BD%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184697_sims_4_skachat_torrent_bez_origin_mehaniki.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188210_skachat_uniblue_driverscanner__klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186908_adobe_after_effects_cs5_32_bit_skachat_torrent.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_off000242b8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x242B8 3556 bytes
font_01_sfnt_off0002503b.bin
1b795d6ec00598ccff9c16c391ee7dca2d05163b8a85733c6ce92c358d9a399e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2503B 15064 bytes
font_02_sfnt_off00027eb7.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac
pdf-font-stream PDF embedded font (sfnt) at offset 0x27EB7 14468 bytes
font_03_sfnt_off0002a96a.bin
2e625b4bd19784e9c783f49f30c39561c4f5d935486bc7ae3c8ed9b4179d0c37
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A96A 6708 bytes
font_04_sfnt_off0002bc9f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC9F 6084 bytes
font_05_sfnt_off0002cc34.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC34 3752 bytes