Malicious PDF — malware analysis report

Static analysis result for SHA-256 62b5d11bea1f8320…

MALICIOUS

PDF

369.2 KB Created: 2015-08-28 01:39:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 63cacea17c88b0dac2e65792729b147c SHA-1: ae77427cfcde05142d02ad3200799ff082c67125 SHA-256: 62b5d11bea1f832071bb7b76c197ce1252fe4bf976d248c9b9a567eb92f5dfd9
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/...` is the primary indicator of malicious intent, likely serving as a lure for a phishing scam or to download a secondary payload. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9975

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%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+assassins+creed+2&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4788/4788787_windows__7__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789703_skachat__windows__xp_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4789/4789663_uroki__logopeda__testuy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057b87.bin
f49e3125032297498885c38de583a8af1f937514bdf6fa68fdb042e29ed21b84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57B87 8852 bytes
font_01_sfnt_off000593c1.bin
7e093472319898e97584b9388a854bd864ae13d7f2777c4f0dd4b8ef9fb31327		 pdf-font-stream PDF embedded font (sfnt) at offset 0x593C1 16632 bytes

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