Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd5e392549868379…

MALICIOUS

PDF

367.0 KB Created: 2015-08-22 09:20:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: dab85385fec14111212b12bf64e41488 SHA-1: 3ecce152b6b97a6757b43ec1937db3594074fec1 SHA-256: bd5e392549868379dbb226a66187de4ad3f090dc631f05c103b07960643c2795
90 Risk Score

Malware Insights

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

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document is designed to lure users to a malicious site, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9943

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%D0%BD+%D1%82%D1%83+%D0%B3%D0%BE%D1%83+%D1%81%D0%BC%D0%BE%D1%82%D1%80%D0%B5%D1%82%D1%8C+%D0%BE%D0%BD%D0%BB%D0%B0%D0%B9%D0%BD+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D1%80%D0%B8%D0%B8+%D0%BF%D0%BE%D0%B4%D1%80%D1%8F%D0%B4+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674561_skachat_porno_igruy_na_pk.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674821_azbuka_domashnego_terrorizma_skachat_pdf.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674784_zhar_pod_kozhey_torrent.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005718b.bin
4854934be00b42dca912433084c5cc0c850bc87563cfecfe4ba93befd7fd2688		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5718B 9532 bytes
font_01_sfnt_off00058bdf.bin
cb5885bf38186b7ed9b780c119a46fac1af79c43836f72d72be9732f667c64c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58BDF 15372 bytes

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