Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0af27cc0e89e57a…

MALICIOUS

PDF

185.6 KB Created: 2015-07-24 19:08:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e7a0a67cda7ed0218bfaaddbca401575 SHA-1: 1cd1b47ccc87a3b269fbbf0af4d1340ca92cf91d SHA-256: f0af27cc0e89e57ab654f42fcb17394482144118f41236b4743f27f695f90aca
152 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 link to a known malicious redirector. The ML classifier also returned a high confidence score. The embedded URL points to 'http://botcraftman.ru/', which is identified as a malicious redirector. No scripts were extracted, but the presence of the malicious link strongly suggests a phishing or redirection attempt.

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-8749528-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8749528-0
  • 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%D1%85%D0%B5%D0%BC%D0%B0+%D0%BE%D0%BF%D0%BE%D0%B2%D0%B5%D1%89%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BF%D1%80%D0%B8+%D1%87%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184947_skachat_naruto_ultimate_ninja_storm_2_na_pc.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189548_klyuchi_dlya_windows7_domashnyaya_rasshirennaya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184554_sims_3_polnaya_antologiya_19_v_1_skachat_torrent_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024419.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24419 3556 bytes
font_01_sfnt_off0002519c.bin
48056f38e3a7e58b1fa252449d14f080222f889e813abcd71e94138fa62f5c4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2519C 14764 bytes
font_02_sfnt_off00027f61.bin
858de1ea0edee6589051d6c5805376be02fce034b392ea3476abe13984ffa707		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F61 14532 bytes
font_03_sfnt_off0002aa4e.bin
65d6c1cfc57a5ef0070641178720317c6456d93f49c88e0732466f894528dfc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA4E 6496 bytes
font_04_sfnt_off0002bcbf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCBF 6084 bytes
font_05_sfnt_off0002cc54.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC54 3752 bytes

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