Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d899c4a4054d9fb…

MALICIOUS

PDF

353.2 KB Created: 2015-08-28 17:34:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 47d983f49f562912dcf45d282c533347 SHA-1: 633847c0a60b99f092cd5ea31cb5939b0a018788 SHA-256: 1d899c4a4054d9fbee2b962ac540cce0f423ff6c40ff2517d455c9f8c2486c2e
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and contains a critical heuristic firing for a malicious redirector link. The embedded URL points to 'http://botcraftman.ru/', which is known to host malicious content. The document body is heavily obfuscated and does not provide clear user-facing text, but the presence of the malicious link is sufficient to indicate a phishing or redirection attack pattern.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-9532087-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9532087-0
  • 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%B0%D0%B3%D0%B0%D1%82%D0%B0+%D0%BA%D1%80%D0%B8%D1%81%D1%82%D0%B8+%D0%BB%D1%83%D1%87%D1%88%D0%B5%D0%B5+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809144_skachat__win__81_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809207_egye__po__russkomu_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809191_lyubov__k__rodine_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054000.bin
6c8bf6e01f6b9abab8407a21eb7b78d2ef372f94c87c2dab90a48a5d7a231a0c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54000 7744 bytes
font_01_sfnt_off0005565c.bin
01fa652ba0f286d441a7d048167153e4589d15a4dfeaeb75b953acc8c6a21fc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5565C 14884 bytes

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