Malicious PDF — malware analysis report

Static analysis result for SHA-256 2907697921dbc052…

MALICIOUS

PDF

352.1 KB Created: 2015-08-26 10:02:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 0fb1fc4396328c5a9b8c5e32f86a3948 SHA-1: f7f72b220b5a5a857cb6b76f56985fbf23549d77 SHA-256: 2907697921dbc052bd2375eb4f29fbd099d048b48bed3ec21846502c156b069b
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a malicious redirector link. The embedded URL `http://botcraftman.ru/?lip&keyword=%D0%BA%D0%BB%D1%8E%D1%87%D0%B8+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8+%D0%B2%D0%B8%D0%BD%D0%B4%D0%BE%D0%B2%D1%81+7&charset=utf-8` is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, limiting further analysis of the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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%BA%D0%BB%D1%8E%D1%87%D0%B8+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8+%D0%B2%D0%B8%D0%BD%D0%B4%D0%BE%D0%B2%D1%81+7&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752127_rusong__tv__baby_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4751/4751884_tureckie__serialuy__na_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4752/4752227_samostoyatelnuye__i__kontrolnuye_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053a98.bin
c1857480a613dbe67e8650d18c410aa9cd658f54192aed273b6e6a7746a7b049		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53A98 8352 bytes
font_01_sfnt_off0005529b.bin
a817ff047a502cc459958c6401df7ab0584ee418a9e1ac2631d263133c5e825c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5529B 15112 bytes

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