Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b7ff61cb01d22c…

MALICIOUS

PDF

368.6 KB Created: 2015-08-19 15:06:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9a0e5e7705c3b31fd292e56b0847743e SHA-1: ffd432a91e61aa36b29a6fa5cc5ccd14b848996d SHA-256: f0b7ff61cb01d22c6e5031bf5cd99367e3b01487895908ac7938873b4c3f2096
90 Risk Score

Malware Insights

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

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure for phishing or to download further malicious content.

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%B8%D0%BC%D1%81+4+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+%D0%BA%D0%BE%D0%BC%D0%BF%D1%8C%D1%8E%D1%82%D0%B5%D1%80&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626654_rezultatuy_egye_po_geografii_2015_perm.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4627/4627178_blagodarstvennoe_pismo_skachat_shablon.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4626/4626470_karta_abhazii_dlya_navitel_nm7_skachat.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00057fe1.bin
fa26bf8b7b6a7e17f7a7e8cbaf40a1149a52de3bd4851d50fa1e58f8db213e73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57FE1 8456 bytes
font_01_sfnt_off00059893.bin
544e702936646088fac537e73a8fa19fc89a53933bfa21238d44a63ecaf9cfa2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59893 13308 bytes

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