Malicious PDF — malware analysis report

Static analysis result for SHA-256 04f31b8a886d43ea…

MALICIOUS

PDF

186.3 KB Created: 2015-07-24 20:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1be1bb93c5b90992a9e7bfd3def45d4f SHA-1: 6f04f7f8583937d8d7acb7853b0c87ee9c995643 SHA-256: 04f31b8a886d43ea3287bfceb7c558e4303c395bdd1cca1eff905bb22afae17b
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by multiple heuristics as malicious, including a critical alert for a link to a known malicious redirector. The embedded URL points to botcraftman.ru, which is identified as malicious infrastructure. This suggests the document's primary purpose is to redirect the user to a harmful site, likely for phishing or malware delivery.

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-7493583-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493583-0
  • 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+%D0%BA%D0%BD%D0%B8%D0%B3%D1%83+%D0%BA%D1%80%D0%B8%D0%BC%D0%B8%D0%BD%D0%B0%D0%BB%D1%8C%D0%BD%D1%8B%D0%B5+%D0%B2%D0%BE%D0%B9%D0%BD%D1%8B+%D0%B8%D0%B6%D0%B5%D0%B2%D1%81%D0%BA%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192462_sindrom_petrushki_skachat_besplatno_txt.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190709_demoversiya_egye_po_russkomu_yazuyku_2015_fi_pi_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192506_epox_ep8kda3i_manual_pdf_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024470.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24470 3556 bytes
font_01_sfnt_off000251f3.bin
be02c86ad3948c3bf7bbc2341c032c993e1ba99b1b024c40055c4ea62ee08e21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251F3 14896 bytes
font_02_sfnt_off00028053.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28053 14468 bytes
font_03_sfnt_off0002ab02.bin
2bb94a91afc824e72496977b4509f1f61b0b6b9dc03f304611b7470f1fd3be99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB02 7008 bytes
font_04_sfnt_off0002bf4a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF4A 6084 bytes
font_05_sfnt_off0002cedf.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CEDF 3752 bytes

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