Malicious PDF — malware analysis report

Static analysis result for SHA-256 6aba58907a3cb363…

MALICIOUS

PDF

344.0 KB Created: 2015-08-28 17:30:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 376a45daaac1ec2ad8fd45d75d1e3619 SHA-1: 73f9faf4c86be8448005f411d42c6980f7bc4dff SHA-256: 6aba58907a3cb363b9cfd617086313919016e5cfee03fa01a87ab051b31af46a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a malicious redirector. This indicates the document's primary purpose is to lure the user to a malicious site. While no scripts were explicitly extracted, the PDF structure and the malicious URL strongly suggest an attempt to deliver a secondary payload or conduct phishing.

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%80%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%B0%D0%B2%D1%82%D0%BE%D0%B1%D1%83%D1%81%D0%BE%D0%B2+%D0%B4%D0%BC%D0%B8%D1%82%D1%80%D0%BE%D0%B2+%D1%81%D0%B5%D1%80%D0%B3%D0%B8%D0%B5%D0%B2+%D0%BF%D0%BE%D1%81%D0%B0%D0%B4&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809108_skachat__albomuy__gruppuy_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809171_izo__natyurmort__v_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809177_paracetamol__detskiy__suspenziya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00052081.bin
bdf5badcbeac0ad39800d9c0dc48d11b3175a3682a300b6c2d76900f85167cce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x52081 8056 bytes
font_01_sfnt_off000537ef.bin
5fa45bd57dc2c0e87c0b2750f98413e8f91386347414d69c519b97d31846f7d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x537EF 12688 bytes

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