Malicious PDF — malware analysis report

Static analysis result for SHA-256 23ccdab9660783ee…

MALICIOUS

PDF

186.0 KB Created: 2015-07-24 03:51:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 285b41566437d9377f2903d297be112a SHA-1: a93b2618d474311166afd08d05ee8424971db4ca SHA-256: 23ccdab9660783ee8134946a02ac8c8390e258d15d56b38354adffc4840c30b0
92 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 link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/...' is the primary indicator of malicious intent. No scripts were extracted, and the document body was not sufficiently readable to provide further context on the lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+192+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184333_krossvord_po_fizike_na_temu_magnitnoe_pole_s_otvetami.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184263_skachat_mod_na_maynkraft_152_apokalipsis.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188038_toca_tailor_skachat_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024517.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24517 3556 bytes
font_01_sfnt_off0002529a.bin
fe553e2945da508925f0b41c0582075f2fe8f8ec6ed668488c7d9758ed5c9677		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2529A 14456 bytes
font_02_sfnt_off00027fa2.bin
7f10f087d84747b337c4196ee0c35bb75720e75679d778b9080d8c5b7ebffc58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FA2 14468 bytes
font_03_sfnt_off0002aa54.bin
bcf9ec97d3970c4bee2c52c90fb9069581f5d23d17d62c34c348eaebaaae40e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA54 6792 bytes
font_04_sfnt_off0002be09.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE09 6084 bytes
font_05_sfnt_off0002cd9e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD9E 3752 bytes

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