Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9f592b107638e8e…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 13:10:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d9cc30fe5fc1451ec6fc36b69275bed5 SHA-1: d4436859a0fc51e44d7b99731a5b41cf07e42c85 SHA-256: c9f592b107638e8e09ff34da40badfed4b1a93c31d2ec86e44e68dbba069a57e
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. This indicates the document is likely a lure to direct users to a malicious website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%BE%D0%B2%D1%8B%D0%B9+%D0%B0%D0%BB%D1%8C%D0%B1%D0%BE%D0%BC+%D0%B1%D1%83%D1%82%D1%8B%D1%80%D0%BA%D0%B0+2015+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184845_pozdravleniya_s_dnem_rozhdeniya_na_mariyskom_yazuyke.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184742_skachat_maynkraft_147_s_modom_divayn_rpg.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190947_multizagruzochnaya_fleshka_windows_7_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000240c0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x240C0 3556 bytes
font_01_sfnt_off00024e43.bin
eda9e0f4be8bef15d3d67cf4f78d3259425bd020edc6e4246962b9916032b1f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E43 14796 bytes
font_02_sfnt_off00027cc1.bin
20022a3da58261568a1d07c35df999c175b04708c1971dcb570f4eed8bc8d7ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CC1 14640 bytes
font_03_sfnt_off0002a7f7.bin
6bce41d6e98f8f70cdbe57f291222e533079ad061a13eec46c3f84b222b3df92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7F7 7264 bytes
font_04_sfnt_off0002bd4d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD4D 6084 bytes
font_05_sfnt_off0002cce2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCE2 3752 bytes

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