Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66901fa7b98086e…

MALICIOUS

PDF

356.8 KB Created: 2015-08-22 09:25:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: c8b1d22c31bb8c57d851857f6793c89c SHA-1: 27bec49ad216ded26327b34544291814b59ba9a9 SHA-256: d66901fa7b98086edc923943b270fefde9bd7deaf49dde8878421b407c2e6aaf
90 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 known malicious redirector infrastructure. The ML classifier also flagged the document with high confidence. The primary malicious IOC is the embedded URL, which is likely used to lure users to a malicious site for further exploitation or credential harvesting. No scripts were extracted, but the PDF structure and the malicious URL are sufficient indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D1%80%D0%B0%D1%84%D0%B0%D1%80%D0%B5%D1%82%D1%8B+%D0%B4%D0%BB%D1%8F+%D0%B4%D0%B5%D0%BA%D0%BE%D1%80%D0%B0+%D1%81%D1%82%D0%B5%D0%BD%D1%8B+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B0+%D0%B04&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674661_skachat_pokemonuy_5_sezon_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674808_gazeta_7_dney_chitat_onlayn.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4674/4674596_russko_bashkirskiy_perevodchik_tekstov_onlayn.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00054bb6.bin
b1d48c8e2a07f3047383087ac56477a0233c35177909d66f2b0ac1b75b46af7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54BB6 10052 bytes
font_01_sfnt_off0005683c.bin
e4696da92bd7e98d48354e3c03e1ed2a7c2285e0cdfe3d6cc0018b8f171d807a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5683C 13452 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.