Malicious PDF — malware analysis report

Static analysis result for SHA-256 4128ff8b2016b5b0…

MALICIOUS

PDF

348.3 KB Created: 2015-08-25 22:09:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8674e78f3765cb1bad11ebf3186bae5e SHA-1: d21a56cb694fa4a91e33f2c8afd3f3522a90ce36 SHA-256: 4128ff8b2016b5b07ac96c71d66999d219df2530c5c90374565eaf8f49dc09ae
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was heavily obfuscated, preventing further analysis of the specific lure. The primary IOC is the malicious redirector URL.

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%80%D0%BE%D0%B2%D0%B5%D1%80%D0%B8%D1%82%D1%8C+%D0%B1%D0%B0%D0%BB%D0%B0%D0%BD%D1%81+%D1%82%D1%80%D0%B0%D0%BD%D1%81%D0%BF%D0%BE%D1%80%D1%82%D0%BD%D0%BE%D0%B9+%D0%BA%D0%B0%D1%80%D1%82%D1%8B+%D0%BA%D1%80%D0%B0%D1%81%D0%BD%D0%BE%D1%8F%D1%80%D1%81%D0%BA&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740639_system__of__a_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740583_skachat__klipuy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4740/4740561_skachat__filmuy__dlya_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000525af.bin
d13219021bb31c94e5498d0da086de726dfac38c0e218b893a72ace7009d0aca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x525AF 9040 bytes
font_01_sfnt_off00053e80.bin
1e3470003cc73f21fe1193a10f44269f1f21582ddedfd2ee71a29ead2478b538		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53E80 16984 bytes

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