Malicious PDF — malware analysis report

Static analysis result for SHA-256 3eef4448e5f1f132…

MALICIOUS

PDF

183.8 KB Created: 2015-08-06 11:55:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2021-10-04
MD5: 23d44e6a4d50af8fae42b938f4bb1c1d SHA-1: 62704ff6135b9dbefdd1c6ded37601c9768338e5 SHA-256: 3eef4448e5f1f13230c7abb1d90a0cd46e1eb1f3c5dec40fd11f95f7677b7934
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

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=%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD%D0%B8+%D0%B4%D0%BB%D1%8F+%D0%BF%D0%BE%D1%80%D1%82%D1%84%D0%BE%D0%BB%D0%BE&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304745_sam_drayver_torrent.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307221_skachat_kazaki_3.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307408_vse_formuluy_po_fizike_shpora.pdfIn PDF document text
    • http://www.microsoft.com/typography/fonts/In PDF document text
    • http://www.microsoft.com/typography/fonts/YouIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x23D5A 3556 bytes
SHA-256: 880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
font_01_sfnt_off00024add.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24ADD 14564 bytes
SHA-256: 3cd00cb6ce207ebc2cf54c19f11c9299d06eae9ef903533c573b28e8f230110d
font_02_sfnt_off00027873.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x27873 14568 bytes
SHA-256: 35a84100f65929f77c9f97cdbdd880cebe147756f8fdc1df4779760ecef8ac33
font_03_sfnt_off0002a361.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A361 6356 bytes
SHA-256: abe3ae2360d616c6110385fc2a9176f7be766ededc20c56f6d421807a1136737
font_04_sfnt_off0002b53e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2B53E 6084 bytes
SHA-256: 819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
font_05_sfnt_off0002c4d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4D3 3752 bytes
SHA-256: 9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e

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