Malicious PDF — malware analysis report

Static analysis result for SHA-256 5da0e715b442cd43…

MALICIOUS

PDF

355.7 KB Created: 2015-08-24 03:12:47 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a27a5000c3b4a892892d66983905965b SHA-1: 00acd75300f0ea0cb2c43e8289eebd97bdfff3c3 SHA-256: 5da0e715b442cd43d9f4c2e4bc589171c1a6e031a9c28291fa695319ed118479
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a malicious redirector link pointing to botcraftman.ru. While no scripts were extracted, the presence of this malicious URL strongly suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting. The ML classifier also flagged this PDF with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+round+up+3&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693687_klyuch__aktivac__vndovs_.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4698/4698141_skachat__filmuy__3d_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4697/4697437_shablonuy__cvetov__iz_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000548a1.bin
a9615df521103e851dce6403ff346e4da13da9765669198d3edeeb32fb70bbef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x548A1 8940 bytes
font_01_sfnt_off0005621a.bin
6f07d2286928c2c90da9d6f3c7cadffc9a74657d4ed65eca9ef78ea628ae12e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5621A 14284 bytes

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