Malicious PDF — malware analysis report

Static analysis result for SHA-256 1d4bce0180c17cbe…

MALICIOUS

PDF

372.6 KB Created: 2015-08-26 18:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-10-23
MD5: 01ad74598034491fbcbbad01c6fa2457 SHA-1: 514390299cb3dd62ddcfa2678a48e3a40d5dfede SHA-256: 1d4bce0180c17cbefc29e9dc41369142e31abc3fdcca507e0b6564009730826c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link that redirects to a known malicious URL, indicating an attempt to deliver a payload or redirect the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious redirector link is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9974

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+%D0%B8%D0%B3%D1%80%D1%83+city+car+driving+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8 In PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762342_predvaritelnuyy__dogovor__kupli_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762267_gdz__po__angliyskomu_.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/7//4762/4762287_skachat__otkritki__z_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00058b55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B55 9148 bytes
SHA-256: e0e87f71e3d8c527f2856c67b51fb0bf4567e9aa6e06d1c6ebed973c7785504d
font_01_sfnt_off0005a482.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A482 15052 bytes
SHA-256: 32157c489a3d55c5c2ed28783ee22c3084d4c22c74cc81a703ba73bab030d02f

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