Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef2f30651e1dc22f…

MALICIOUS

PDF

184.4 KB Created: 2015-07-23 20:21:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2dd18eb54a777e294f1b9cb46600cf77 SHA-1: d7f29369fff3a2d74e817e2cbd44dc8139149dc1 SHA-256: ef2f30651e1dc22ffff2a15b76fee00d8c1b891f9afe972360f1ee2457a32f77
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a malicious redirector link and a high ML score. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

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-7495075-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7495075-0
  • 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%B7%D0%B2%D1%83%D0%BA+%D0%BC%D0%B5%D0%BB%D0%B0+%D0%BF%D0%BE+%D0%B4%D0%BE%D1%81%D0%BA%D0%B5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184329_faction_fronts_clear_sky_v221_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183258_proekt_doma_5_na_5.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184446_planshet_eplutus_g10s_instrukciya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d9f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D9F 3556 bytes
font_01_sfnt_off00024b22.bin
bf9b43f64c275c921560d6c4b18f16aaae45cd48d631beeb0a0ce87ed4ce52df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B22 14992 bytes
font_02_sfnt_off0002798b.bin
af704030b4b2c81454d4f851ec52174ae06bd1e3c0b00438267026f9ed55c622		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2798B 14720 bytes
font_03_sfnt_off0002a4f8.bin
b4c5d562a4b40308caf4b9da95b2b6717cb9e087122d55478d6fe17b095322bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4F8 6560 bytes
font_04_sfnt_off0002b7ca.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7CA 6084 bytes
font_05_sfnt_off0002c75f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C75F 3752 bytes

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