Malicious PDF — malware analysis report

Static analysis result for SHA-256 456bd62f7c995298…

MALICIOUS

PDF

352.7 KB Created: 2015-08-28 11:34:31 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 155e7e486230de4efe660d771b3f05e5 SHA-1: b2ed42b908d0d2f34dca2cee41bb36a272116f94 SHA-256: 456bd62f7c995298e21b13ddf98cb60262abb99e96ad8e295b04f3442318f933
92 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/, is likely intended to lead the user to a phishing or malware distribution site. No scripts were extracted, but the presence of the malicious link is sufficient evidence of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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%BF%D1%80%D0%B0%D0%B2%D0%BA%D0%B0+%D0%BE+%D0%B4%D0%BE%D1%85%D0%BE%D0%B4%D0%B0%D1%85+%D0%B2+%D1%81%D0%B2%D0%BE%D0%B1%D0%BE%D0%B4%D0%BD%D0%BE%D0%B9+%D1%84%D0%BE%D1%80%D0%BC%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802454_fifa__07__ukrainskaya_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802389_skachat__yemulyator__android_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802423_tureckie__melodii__skachat_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053e9e.bin
bdd754e88f278c425a21c6e6bc4fb8b6e5d3aceb68f86f0c9bf7e970251eb8ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E9E 8076 bytes
font_01_sfnt_off0005560f.bin
47ae380cb09e14cfd8a8af047f742572009d9fd12c5d846672ad6874831a998a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5560F 14360 bytes

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