Malicious PDF — malware analysis report

Static analysis result for SHA-256 b18862c5d9abc819…

MALICIOUS

PDF

186.4 KB Created: 2015-07-25 19:57:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c48659d5fd66e1bc31db4fa97fe32722 SHA-1: 8759dc6ffd9cc1efb54802d7715a21fb38ae858c SHA-256: b18862c5d9abc8194d2f96b93b00d7e7dad69762dabcbe17f57be6a03727b581
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 a known malicious redirector. The redirector URL is likely used to funnel users to a malicious website for phishing or malware delivery. No scripts were extracted from this sample, limiting further analysis of its behavior.

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%BE%D1%82%D0%B2%D0%B5%D1%82%D1%8B+%D0%BD%D0%B0+%D0%B5%D0%B3%D1%8D+2015+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+3+%D0%B8%D1%8E%D0%BD%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4208/4208009_sila_soznaniya__nevill_goddard.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194492_igruy_dlya_telefonov_nokia5228.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203316_skachat_igru_chivalry_medieval_warfare_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024362.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24362 3556 bytes
font_01_sfnt_off000250e5.bin
8699d9c37cffe2c95df52cc43bc64668a39de6052fe2abf446419b19086be03b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250E5 15176 bytes
font_02_sfnt_off00027ffc.bin
64aae254aad2c0b020e28717c868df5960d80e017d5623222e2c28e79e3c1960		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27FFC 14640 bytes
font_03_sfnt_off0002ab2d.bin
ba72e90943d81a722a110920522b870b8270c312c3942efbcd73bc0fd365ff41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB2D 7088 bytes
font_04_sfnt_off0002bfcc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFCC 6084 bytes
font_05_sfnt_off0002cf61.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF61 3752 bytes

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