Malicious PDF — malware analysis report

Static analysis result for SHA-256 773568c4715fff5b…

MALICIOUS

PDF

186.3 KB Created: 2015-07-25 02:10:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: dc770c087218205193bedab83547aaf8 SHA-1: 32e1a7fc46326cafdd9f3ea9966d9eb16e999945 SHA-256: 773568c4715fff5bf413e15cb0727a635c75622d59d42e293a9f9135fec9484c
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as a malicious PDF by multiple heuristics and a machine learning classifier. It contains an embedded URL pointing to a known malicious redirector, indicating an attempt to lure the user to a harmful destination. The ClamAV detection name 'Pdf.Dropper.Agent-7522205-0' further supports its classification as a dropper.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7522205-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7522205-0
  • 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%9F%D0%B5%D1%80%D0%B2%D1%8B%D0%B9+%D1%83%D1%80%D0%BE%D0%BA+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B8+%D0%B2+5+%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%B5+%D1%84%D0%B3%D0%BE%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192101_skachat_chit_na_contract_wars_onlayn_shuter_na_dengi.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192670_volki_kali_audiokniga_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195943_rusifikator_fear_3_zvuk.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024310.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24310 3556 bytes
font_01_sfnt_off00025093.bin
8df209ae96d086779cf64a81188356315c603d553d1ceeb54d9d93fbbbbd7741		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25093 15468 bytes
font_02_sfnt_off00028087.bin
734a0e3b4f833bf65ef9aa9a76728ab53f12e51cd926d3a6291e3b266682b037		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28087 14640 bytes
font_03_sfnt_off0002abba.bin
5804250e7f83009f34e37d3b28cab550a357c082e530def5e7a9c2b3917192e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABBA 6820 bytes
font_04_sfnt_off0002bf69.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF69 6084 bytes
font_05_sfnt_off0002cefe.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEFE 3752 bytes

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