Malicious PDF — malware analysis report

Static analysis result for SHA-256 01f232322ec67309…

MALICIOUS

PDF

364.0 KB Created: 2015-08-29 01:19:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7c5581f949064a66c555f31589a1d186 SHA-1: fe36a0d2b63c199fc413406b51a24cfb20060e6a SHA-256: 01f232322ec67309bd7c53ec29186d754bdc17e2f2e5d59ab65b9d46f3e97683
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document is designed to lure users to a malicious site, likely for phishing or to download further malware. The ClamAV detection as Pdf.Dropper.Agent-8151061-0 further supports its malicious nature. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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-8151061-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8151061-0
  • 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%B7%D0%B0%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%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://img1.liveinternet.ru/images/attach/c/7//4817/4817448_skachat__besplatno__dnevnik_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817437_my__little__pony_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056c77.bin
efefcce9b610ec3b4416254946b67ec3a77ca4ae74358c98e2738f316057e4a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56C77 8280 bytes
font_01_sfnt_off0005844f.bin
bc89792c40e4bf0139f9c87feeda3b610ac607d6470b0a97e9c8a73f3b962fbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5844F 14624 bytes

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