Malicious PDF — malware analysis report

Static analysis result for SHA-256 119c37e46da137c9…

MALICIOUS

PDF

361.2 KB Created: 2015-08-29 01:22:00 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 7b552cb275f202be65ad64eb86561bb5 SHA-1: 7b9fb318f34282593c67873150754091f825a4ef SHA-256: 119c37e46da137c90317b0726c43ed7d9fe88a22ec2c5ad700c204149c6da057
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URL is the primary indicator of malicious intent, likely serving as a lure for further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9959

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%D1%82%D0%B0%D1%81+%D0%BC%D0%B8%D1%85%D0%B0%D0%B9%D0%BB%D0%BE%D0%B2+%D0%BB%D1%83%D1%87%D1%88%D0%B8%D0%B5+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817807_mister__kredo__luchshee_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817440_yelnara__abdullaeva_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817463_evropa__plyus__top_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056215.bin
f8cc7b87ee5d4e1aeb94093dd203022b461cc715165f2a435580922fdfc3986c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56215 7812 bytes
font_01_sfnt_off0005788c.bin
6e9f135bff6c33e13725018cf2c51760dab85641431c8e91d2ef33c9424e4183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5788C 14048 bytes

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