Malicious PDF — malware analysis report

Static analysis result for SHA-256 485d67c257497494…

MALICIOUS

PDF

372.3 KB Created: 2015-08-21 09:23:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 277d5ea2f14c6ca755293150d0d099bf SHA-1: 7ccd994046b160e47b4e0622948fc7236810078c SHA-256: 485d67c25749749499ffbfb6eef7f6adda0b2ef7289dfeac064a1495c351d878
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure at botcraftman.ru. This indicates the file is designed to lure users to a harmful website. No scripts were extracted, but the PDF structure and the malicious URL strongly suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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%B8%D1%82%D0%B8%D0%B3%D0%B8%D0%B4+%D0%B4%D0%BB%D1%8F+windows+ce+60+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654677_skachat_gta_san_andreas_multipleer_03e_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654689_skachat_igru_metro_2034_cherez_torrent_besplatno_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654749_koroleva_bala_smotret_onlayn_na_russkom_yazuyke_na_yu.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005879f.bin
a92d5c1ba0bdba5596137b4d757c281aa170ab46353a9ce895f7224a89a40e93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5879F 9552 bytes
font_01_sfnt_off0005a271.bin
e6fff8014b43bac449f03328ae9cce0bcf1c46f266ab76fb470e5d1be30c6ed0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A271 15156 bytes

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