Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f69caadaacff852…

MALICIOUS

PDF

340.0 KB Created: 2015-08-28 19:20:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-09-17
MD5: 70450b4b4e91d36152a1da5b4f47b8c6 SHA-1: ad5134daf54551a43ef9268a28a9a617136d6fe9 SHA-256: 5f69caadaacff8521c082732b53032dfbfcabf571cf13ae0db7fa5f79c64479a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The primary IOC is the malicious URL, which is likely used to lure the user to a compromised site for further exploitation or credential harvesting. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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%BD%D0%BE%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%B1%D0%B0%D1%8F%D0%BD%D0%B0+%D0%B3%D0%BE%D0%BB%D1%83%D0%B1%D0%BE%D0%B9+%D0%B2%D0%B0%D0%B3%D0%BE%D0%BD&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809315_pourochnuye__razrabotki__po_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809153_kontrolnuyy__diktant__po_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4811/4811003_raspisanie__marshrutok_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005103e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5103E 8228 bytes
SHA-256: c87c45539ef24ec81151232d7f8d68a45a210f66a5dd2bd366767c870ba90cc2
font_01_sfnt_off000527c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x527C5 12436 bytes
SHA-256: 219b9a733f1edc48125b91b357d617376f994dcc1d3fc40e09c44005e12326b2

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