Malicious PDF — malware analysis report

Static analysis result for SHA-256 a27caf9a359b2fdf…

MALICIOUS

PDF

352.9 KB Created: 2015-08-21 09:19:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b9b4be89d3cb8eec3f47a9cecf9099ea SHA-1: fbfa079d03be5a95f0ddf9885a93c5aa2d209948 SHA-256: a27caf9a359b2fdf79fcea27520f6452ebe6b51cbbd244b689256334ac380184
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is identified as a known malicious redirector. This suggests the document's primary purpose is to lure users to a potentially harmful website. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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=packard+bell+ze7+%D0%B4%D1%80%D0%B0%D0%B9%D0%B2%D0%B5%D1%80%D0%B0&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654723_skachat_the_survivor_rusty_forest_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654728_koduy_na_test_drive_unlimited_na_dengi.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654706_skachat_nfs_most_vanted_s_russkimi_mashinami.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053b33.bin
d51789e5e2abbe2080ac068376ff7570031300746e990311d08ab51f98eaedd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53B33 9232 bytes
font_01_sfnt_off0005553c.bin
7f94dae52948e99cac206085becadd5da4a9e90e427327714ea380f5b14f4ff8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5553C 15616 bytes

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