Malicious PDF — malware analysis report

Static analysis result for SHA-256 a91d3830a2019a15…

MALICIOUS

PDF

352.9 KB Created: 2015-08-28 18:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 8f483620a2c7dfbcb9859d0b67d94fb2 SHA-1: 275e82dc2fb071d66ac5f1ac3fbdd7e901e871d7 SHA-256: a91d3830a2019a159a72624d56abbe03a9b2cde11cc093d4ad5d87dc8a5dfd91
60 Risk Score

Malware Insights

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

The PDF file was flagged for containing a link to known malicious redirector infrastructure. This indicates the document is likely a lure designed to redirect users to a malicious website for phishing or malware delivery. No scripts were extracted, and the document body was heavily truncated and unreadable, limiting 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=%D1%81%D0%B0%D0%BC%D1%8B%D0%B9+%D0%B7%D0%BD%D0%B0%D0%BC%D0%B5%D0%BD%D0%B8%D1%82%D1%8B%D0%B9+%D0%B8%D0%B7+%D0%B4%D1%80%D0%B5%D0%B2%D0%BD%D0%B8%D1%85+%D0%B3%D1%80%D0%B5%D0%BA%D0%BE%D0%B2+100+%D0%BA+1+%D0%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809185_recovery__toolbox__for_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4809/4809927_samsung__kis__skachat_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4810/4810037_eyes__the__horror_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000534c6.bin
90c99479d79be2f0a8a712a2549dc7e3ac9f76d6628a948c5ac4dc27af9c0f36		 pdf-font-stream PDF embedded font (sfnt) at offset 0x534C6 8928 bytes
font_01_sfnt_off00054ec6.bin
11dd147a1a647f4ac8ec2fb100e69b2c177846499227808a3835179825391ca0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54EC6 18012 bytes

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