Malicious PDF — malware analysis report

Static analysis result for SHA-256 a279979718a36ceb…

MALICIOUS

PDF

185.4 KB Created: 2015-07-25 12:33:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e2d6c3e2413c4b4fa0e09100586ab374 SHA-1: e8204379a9176e49657b76b9f795d6abcd0b1f13 SHA-256: a279979718a36ceb254cb77a5a018fe4564001ac98a6666a68d60c91b3c8ef18
152 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier and ClamAV detection strongly support its malicious nature. The primary attack vector appears to be social engineering via a malicious link embedded within the PDF document.

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-7527710-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7527710-0
  • 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%90%D0%B2%D0%B0%D1%82%D0%B0%D1%80%D0%B8%D1%8F+%D0%BC%D0%B8%D1%80+%D0%B3%D0%B4%D0%B5+%D1%81%D0%B1%D1%8B%D0%B2%D0%B0%D1%8E%D1%82%D1%81%D1%8F+%D0%BC%D0%B5%D1%87%D1%82%D1%8B+2+%D0%B8%D0%B3%D1%80%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185951_skayp_skachat_torrent_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4200/4200592_podgotovka_k_egye_po_informatike_s_nulya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185468_vasha_versiya_windows_7_ne_yavlyaetsya_podlinnoy_chto_delat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242bc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242BC 3556 bytes
font_01_sfnt_off0002503f.bin
5105a4a3954c401f80ee78b9aa41359464a7399b6f55fd3ceed3e645ba119002		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2503F 14192 bytes
font_02_sfnt_off00027d1a.bin
28071d84b73d1433730e7dc3de4f787a6016bb46d54154e0f7b51b95ad000c87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D1A 14468 bytes
font_03_sfnt_off0002a7cb.bin
a9d4b88e852eaae029ca7221ee96ea0c688f0972a6b502bbd19d16d0b5f01ba2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7CB 6880 bytes
font_04_sfnt_off0002bb9c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB9C 6084 bytes
font_05_sfnt_off0002cb31.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB31 3752 bytes

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