Malicious PDF — malware analysis report

Static analysis result for SHA-256 e4ab07f216e5b9e7…

MALICIOUS

PDF

363.5 KB Created: 2015-08-26 00:03:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-06-30
MD5: d7472a36f7d8a7578f38d081ef90b4a7 SHA-1: 3a23ba4b727644752df6439fdf0a4cf61317c2df SHA-256: e4ab07f216e5b9e7b2aff57011700baaeb1f815bf55440e6f68d880d7437951e
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as malicious and points to a known redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily obfuscated and unreadable, but the presence of the malicious URL suggests an attempt to lure the user to a harmful site, likely for phishing or to download further malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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%B1%D0%B8%D0%B7%D0%BD%D0%B5%D1%81+%D0%BF%D0%BB%D0%B0%D0%BD+%D1%85%D0%BB%D0%B5%D0%B1%D0%BE%D0%BF%D0%B5%D0%BA%D0%B0%D1%80%D0%BD%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4741/4741702_windows__7__ultimate_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/7//4741/4741046_blank__avansovuyy__otchet_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4742/4742309_skachat__vse__chituy_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000560ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x560EE 8884 bytes
SHA-256: 5499644b4d256315b58845ee8c0438b582223eae79ef51741129a536b35718a3
font_01_sfnt_off000579e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579E2 17484 bytes
SHA-256: 2af3b8d4a7431dc92ca14b917316e8bbeb92f914ba6cd502d33419e4660f24d3

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