Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a1c2a2ea3f31675…

MALICIOUS

PDF

357.4 KB Created: 2015-08-26 10:28:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 24d2b3092a34f2ae2c5d16425b680339 SHA-1: 0b9c4691f11e09376aa009a61e36404094b53293 SHA-256: 6a1c2a2ea3f31675a1e2f94e4295b286fcebce02f4d01a010dce79d4784470bc
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The presence of this link suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D0%B8+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752669_catia__v5__video_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752530_programma__dlya__sostavleniya_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751601_kak__delat__skinuy_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055032.bin
eda9f504b84eb9c564311c205a1df87da6f243435d8189dad0bc656843fd7b50		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55032 8272 bytes
font_01_sfnt_off00056872.bin
9e86ffc79ece758ef35cfe4df3226bf2d7844cfdc63e7382ea932b071e2ae55a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56872 14760 bytes

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