Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5aa2aebc662a380…

MALICIOUS

PDF

187.3 KB Created: 2015-08-06 19:30:56 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e10f9308f1a12d09cf17e980c123dbb1 SHA-1: 36c882377785d0061377283619889429837c6655 SHA-256: b5aa2aebc662a380025e6c77e14f27bc23fdb071a1bae79f0900e9435f761010
92 Risk Score

Malware Insights

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

The PDF document contains a link to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely intended to lead the user to a phishing site or to download further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • 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.
  • 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%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D0%BF%D0%B5%D1%80%D0%B5%D0%B4%D0%B0%D1%87+%D0%BD%D0%B0+%D1%81%D0%B5%D0%B3%D0%BE%D0%B4%D0%BD%D1%8F+%D1%80%D0%BE%D1%81%D1%81%D0%B8%D1%8F+1+%D0%B1%D0%B0%D1%80%D0%BD%D0%B0%D1%83%D0%BB&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4312/4312950_obrazec_flaera.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305403_prakticheskie_zadaniya_k_biletam_po_informatike_9_klass.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306952_videopleer_dlya_android_41_na_russkom_yazuyke_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248c1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248C1 3556 bytes
font_01_sfnt_off00025644.bin
ec65f3d3d8923032931981356c292dfcf840de62b3756d83bdfedf4265c946f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25644 15004 bytes
font_02_sfnt_off0002856c.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2856C 14468 bytes
font_03_sfnt_off0002b01e.bin
214ca488bbb3fda0f268cead1037100fa6b531b6bf4c9abd4ad6056e01743319		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B01E 6652 bytes
font_04_sfnt_off0002c339.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C339 6084 bytes
font_05_sfnt_off0002d2ce.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2CE 3752 bytes

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