Malicious PDF — malware analysis report

Static analysis result for SHA-256 54dc84daccb43f7c…

MALICIOUS

PDF

363.7 KB Created: 2015-08-24 00:12:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6) First seen: 2021-11-20
MD5: 3f0aa1033688fe041c02879ce0e16f4a SHA-1: 275503cf67117345fb9d0d14a0a45ee4e4c92c6b SHA-256: 54dc84daccb43f7c97646687e9f43136a9a128dd828643a44efcafa002d0e445
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of a malicious link strongly suggests a malicious intent, likely related to spearphishing.

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=%D1%80%D0%B0%D0%B7%D0%B4%D0%B0%D1%87%D0%B0+%D0%B0%D0%BA%D0%BA%D0%B0%D1%83%D0%BD%D1%82%D0%BE%D0%B2+%D0%B2%D0%B0%D1%80%D1%84%D0%B5%D0%B9%D1%81+2015+%D1%81%D0%B5%D0%BD%D1%82%D1%8F%D0%B1%D1%80%D1%8C&charset=utf-8 In PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693470_chat__ruletka__na_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693457_tekst__pesni__sdelay_.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4693/4693820_d3dx9_41dll__fifa_.pdfIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056474.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56474 9552 bytes
SHA-256: cf0ca5a9d841edc39f631bd019f69f66e950e1ebf2abdcc032a44820e6ba50c1
font_01_sfnt_off00057f67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57F67 15300 bytes
SHA-256: 5e4807a35c7a907e4478141df1d78b2b2a783485792d975f0169ce401469e82a

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