Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0220c2b2ed5b53a…

MALICIOUS

PDF

386.3 KB Created: 2015-08-20 08:36:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 3989f486a21f701bbeac061dee34d0ed SHA-1: 5d6af83d6f43db2235e42e40afc30995aaf892d6 SHA-256: c0220c2b2ed5b53a5615369fd3d2172f94ddf2a1b210288129a07798471e3442
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The presence of a malicious redirector suggests the document is intended to lure users to a site that may host further malicious content or phishing forms.

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=%D0%BF%D1%81%D0%B8%D1%85%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D1%8F+%D0%B4%D0%BE%D1%88%D0%BA%D0%BE%D0%BB%D1%8C%D0%BD%D0%BE%D0%B3%D0%BE+%D0%B2%D0%BE%D0%B7%D1%80%D0%B0%D1%81%D1%82%D0%B0+%D1%83%D1%87%D0%B5%D0%B1%D0%BD%D0%B8%D0%BA&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639025_prilozhenie_poobschaemsya_v_odnoklassnikah.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639607_golaya_15_let_devochka_foto.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639515_reshebnik_vuysshaya_matematika_dlya_yekonomistov_kremera.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005bcc2.bin
cbf48b357eb864d3308d1883157a1afaa7d7b5f4fbb5fe696c5b859dda041bc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCC2 8808 bytes
font_01_sfnt_off0005d60c.bin
3b1b3287bc799fd442a2d6376fcfc5c7c01cb8d36b2d08039b617a3dc9a368b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5D60C 16600 bytes

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