Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8988aaaaf4ca934…

MALICIOUS

PDF

387.6 KB Created: 2015-08-29 01:57:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c1c17488e4ef7e4f4daa09294e4dd3f8 SHA-1: 978d8ef9528ef355a9a7b9d92a629d68976aaac5 SHA-256: c8988aaaaf4ca934349eeb1be153552574c41a3f1879903ece6d2f1431a0c192
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body is heavily obfuscated and unreadable, but the presence of the malicious URL is sufficient to determine the attack pattern. 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%80%D1%83%D0%BA%D0%BE%D0%B2%D0%BE%D0%B4%D1%81%D1%82%D0%B2%D0%BE+%D0%BF%D0%BE+%D1%8D%D0%BA%D1%81%D0%BF%D0%BB%D1%83%D0%B0%D1%82%D0%B0%D1%86%D0%B8%D0%B8+mitsubishi+pajero&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817995_bogatuyy__papa__bednuyy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817544_zver_____.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4817/4817788_skachat__chit__na_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c008.bin
c08c1a972875965bb57c478b032409042cb90027bcedf0ae21993577ddc65c98		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C008 10360 bytes
font_01_sfnt_off0005dcfa.bin
39586019610ba68fb84395dae96fd6267eaff504dd920827274b2ae801e2cb81		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DCFA 16476 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.