Malicious PDF — malware analysis report

Static analysis result for SHA-256 18e226cab12b9996…

MALICIOUS

PDF

187.7 KB Created: 2015-08-08 09:54:44 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 50df22a008487195feff3b9f603494db SHA-1: 0f0934040622820d23f760404e5a0b8e8f320638 SHA-256: 18e226cab12b999698fe9eb39437e20237c17b53bd1b666d3f5e5c92d5c8ec55
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is highly suspicious and likely serves as a lure to a phishing or malware download page. No scripts were extracted, but the presence of a malicious link strongly suggests an intent to redirect the user to a harmful destination.

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%BC%D1%83%D0%B7%D1%8B%D0%BA%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC%D1%8B+%D0%BC%D1%803&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383812_konturnaya_vuyshivka_krestom_shemuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384462_denis_lirik_skachat_pesni_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384520_skachat_stalker_narodnaya_solyanka_2014_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_off00024927.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24927 3556 bytes
font_01_sfnt_off000256aa.bin
149ae9169baf3319af359fba300d83f61dade1e5da7bd9bc2017d76acdf8cb36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x256AA 15112 bytes
font_02_sfnt_off000285e1.bin
8fcb0373def2089f4050d604114efab1fb90fd41090bcaab965e0072af246115		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285E1 14468 bytes
font_03_sfnt_off0002b08d.bin
20b836038aa00615ebe9f94d6c268e487240c7c0a5accc794bdc51ad99632c44		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B08D 7076 bytes
font_04_sfnt_off0002c524.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C524 6084 bytes
font_05_sfnt_off0002d4b9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4B9 3752 bytes

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