Malicious PDF — malware analysis report

Static analysis result for SHA-256 7be2c04553b94693…

MALICIOUS

PDF

184.2 KB Created: 2015-07-25 16:10:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d6007938ea453bc90e1c3becb076a8e4 SHA-1: 871b438112730e6ae3cfa2a2d04d7297e6a13a8b SHA-256: 7be2c04553b94693a9aa8f60ef3551a16efc4713b68a8bb2e89e858eee2827ee
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical finding for a redirector link to botcraftman.ru. The ML classifier also assigned a high probability of maliciousness. The ClamAV detection name 'Pdf.Dropper.Agent-8799708-0' suggests the file's purpose is to drop or execute other malicious content. The embedded URL is the primary indicator of compromise, likely leading to a phishing or malware distribution site.

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-8799708-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8799708-0
  • 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD+%D1%80%D0%B5%D0%B7%D1%8E%D0%BC%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197564_zvuk_fanfar_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198773_drayvera_na_zvuk_na_windows_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186376_windows_7_loader_extreme_edition_v3_503_by_napalum_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c0d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C0D 3556 bytes
font_01_sfnt_off00024990.bin
b7a417bca97594562c6b4b44604cac9be1e1f15c4f1aef260061a63713a1c48d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24990 15316 bytes
font_02_sfnt_off000278d6.bin
f9b42ca244d3b91194decb6badceb228b42cb629bd3c1fed03f4f7abb88fabf3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278D6 14520 bytes
font_03_sfnt_off0002a3a6.bin
22e19e69c57192581fa2ddf2830c192a460172206368cc2339a0d8a3d06c15b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A3A6 6716 bytes
font_04_sfnt_off0002b6e1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6E1 6084 bytes
font_05_sfnt_off0002c676.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C676 3752 bytes

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