Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad4701549b3fbac6…

MALICIOUS

PDF

360.2 KB Created: 2015-08-20 08:53:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: d77373e34cac412f64180afa7abc9086 SHA-1: a83b4cfb812ac511e0deb7db3e1dbcc866f724a6 SHA-256: ad4701549b3fbac68739f3dd1187e041c0a76b4396202e3197b7109ed3fee1c2
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body is heavily obfuscated and does not provide clear textual clues, but the presence of the malicious URL strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%9C%D1%83%D0%B6%D0%B8%D0%BA+%D0%B5%D0%B1%D0%B5%D1%82+%D0%BB%D0%BE%D1%88%D0%B0%D0%B4%D1%8C+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4640/4640020_keneksi_s8_igruy_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639694_vruchenie_attestatov_9_klass_scenariy.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639962_ramki_dlya_specifikacii_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055ec3.bin
1ba0e78b8633b2cf44b298d32ab503bdf41a90c54bbbf553a0d68f4fde3cfabb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55EC3 8792 bytes
font_01_sfnt_off0005780c.bin
a1c9c93b7679c30d9219aced48663e54bfde59bb3be6e7ce04cde278a30f604a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5780C 12736 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.