Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5ba670ab4e5d501…

MALICIOUS

PDF

185.9 KB Created: 2015-08-05 21:45:19 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fc05083b14b341bfa35b81cb06366d7e SHA-1: 229c8d1842ba8a39bb782f5dae7907ca87b33870 SHA-256: b5ba670ab4e5d5017e706f601449f8072e76a007732aa304efeb892d7b3313bc
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to known malicious redirector infrastructure. The embedded URL `http://botcraftman.ru/?lip&keyword=%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D1%8B+%D0%B8+%D1%81%D1%85%D0%B5%D0%BC%D1%8B+%D0%BF%D0%BE+%D0%B1%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D0%B8&charset=utf-8` is the primary indicator of malicious intent. No scripts were extracted, but the PDF structure itself is used to deliver the malicious link.

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=%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D1%8B+%D0%B8+%D1%81%D1%85%D0%B5%D0%BC%D1%8B+%D0%BF%D0%BE+%D0%B1%D0%B8%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306926_vse_formuluy_po_fizike_mehanika.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307375_korm_treyner_oficialnuyy_sayt.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307431_passbook_dlya_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024412.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24412 3556 bytes
font_01_sfnt_off00025195.bin
a175e261f05cd8caf56965f2d6debb482f483f2bf244b71b1067424a1f5298ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25195 15440 bytes
font_02_sfnt_off000280f5.bin
0627de34e839737c03af0d9f30945bab194dadec018a1d0b90d3566f99dbb150		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280F5 14532 bytes
font_03_sfnt_off0002abe4.bin
8cd2094110f613d7b93357786a35671b66d87a2348f116af2ca04cdad346b89d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ABE4 6348 bytes
font_04_sfnt_off0002bdd8.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BDD8 6084 bytes
font_05_sfnt_off0002cd6d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD6D 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.