Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2af90f84e1a1111…

MALICIOUS

PDF

187.6 KB Created: 2015-07-24 00:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b8e4ecbf46da9222aa55113c7d3f9187 SHA-1: 2f0c4605902593544da7d607ae9404c64ecb39a2 SHA-256: d2af90f84e1a1111e7e269378b13976d9dfe90146085bc012402ac881b269b42
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link to botcraftman.ru, indicating it is designed to lead users to harmful content. The ClamAV detection as Pdf.Dropper.Agent-7494885-0 further supports its malicious nature. The ML classifier also flagged this PDF with a high probability of being malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-7494885-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494885-0
  • 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%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%D0%B2+%D0%B0%D1%80%D1%85%D0%B0%D0%BD%D0%B3%D0%B5%D0%BB%D1%8C%D1%81%D0%BA%D0%BE%D0%B9+%D0%BE%D0%B1%D0%BB%D0%B0%D1%81%D1%82%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184752_dnevnik_po_uchebnoy_praktike_v_otdele_doznaniya.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185552_liz_burbo_slushay_i_esh_doloy_kontrol_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184350_yesse_po_obschestvu_primeruy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247a0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247A0 3556 bytes
font_01_sfnt_off00025523.bin
1fe7e7a40f4d2b4870a8339ae781806edc42620ad1a64e8019252a7212ce5d4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25523 14588 bytes
font_02_sfnt_off000282f9.bin
428d7e11fa9f65daef080d11e4e8a9c3f56ec42b4294401e4d5a707829b861e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282F9 14708 bytes
font_03_sfnt_off0002ae71.bin
d5de3314c5117f4524f80609b8cfd3c92918c233231517dd3c1cc1e730e17ca9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE71 7576 bytes
font_04_sfnt_off0002c4cb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4CB 6084 bytes
font_05_sfnt_off0002d460.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D460 3752 bytes

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