Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed996482bc61d0c7…

MALICIOUS

PDF

344.9 KB Created: 2015-08-22 08:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0b2f64259ffdb09984538c591bcb6369 SHA-1: c90f22472afa0930d8198e49620de8ff62e2b0e0 SHA-256: ed996482bc61d0c783d8a788c912dcaf5e30c5ae1553d255f96a978fcb38619b
90 Risk Score

Malware Insights

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

The PDF file 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, and the document body was unreadable.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+kw+%D0%B4%D0%BB%D1%8F+%D0%BA%D0%B0%D1%81%D0%BF%D0%B5%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674463_skachat_igru_garrys_mod_13_s_modami_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674468_tatuirovki_v_zone_bikini_foto.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052035.bin
c0c11c9e7a338669310fd9dddace26218751236474163d4b9980e5367ccfcfb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52035 7884 bytes
font_01_sfnt_off00053753.bin
305c90cd2d33a1ebbbf507ae0fd78934870059084394dcb99656d0d9e3df3ea7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53753 14400 bytes

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