Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfb33c2749d547d0…

MALICIOUS

PDF

387.1 KB Created: 2015-08-22 08:51:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c5056a4d09b2b94649c9d52781426706 SHA-1: 9b90baba458de01353a77b07351a09b31bdbb47a SHA-256: bfb33c2749d547d0717280aefb42782a675f9a1197c724b4673c282c2611a3f0
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1566.002 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely part of a phishing or malware distribution campaign. The embedded URL is the primary indicator of malicious intent, suggesting the document's purpose is to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+2015+4+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+%D1%81+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D0%B0%D0%BC%D0%B8&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674459_skachat_zumu_besplatno_na_kompyuter_bez_ogranicheniya_vremeni.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674458_skachat_lyubimuye_buyvshimi_ne_buyvayut.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674457_otvetuy_na_gia_po_literature_9_klass_2015.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005c264.bin
da400f547cb2218fed005f55ab47709192bf9ebca0ff3c32dd064a1cc7ff4cd0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C264 10112 bytes
font_01_sfnt_off0005df54.bin
2da77f4cbbd8f8ce4534f77ede25f31988dca2f6ade61fdea8536205261f4fec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DF54 14280 bytes

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