Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac82807c9ee6b25…

MALICIOUS

PDF

186.7 KB Created: 2015-07-24 15:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cc214dce3af4b7b3efa31bbd604c1eb3 SHA-1: 732e27167edd5be5f1d7004b32bbc70d4e49119f SHA-256: 5ac82807c9ee6b25860fb017861f6351a1aaa11181b02bb4bd172597d8964d9a
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to known malicious redirector infrastructure. The embedded URL http://botcraftman.ru/... is identified as a malicious redirector, suggesting the document's purpose is to lure users to a harmful website. No scripts were extracted, but the presence of a malicious link is sufficient evidence of malicious intent.

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%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+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83+2015+%D1%81%D0%B0%D0%BC%D0%B0%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190643_baza_gai_ukrainuy_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188130_skachat_moduy_na_maynkraft_18_na_mebel.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184480_kasting_vudmana_v_rossii_skachat_torrent.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_off0002457e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2457E 3556 bytes
font_01_sfnt_off00025301.bin
3a7ee2fd2d3cf8b08a1f660100a932fb1ab8c2ac7b2cdbfdb25d5703dbc26d47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25301 14628 bytes
font_02_sfnt_off000280ea.bin
d129b2306b70ce91da7e21aa5dc95ff0e57120c5b3b157257a57119c7bcd55f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280EA 14640 bytes
font_03_sfnt_off0002ac23.bin
b8d73348d7f9e1dc5dfb6d5ad113e52f3883daf79f879d3d84219aa181721788		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC23 7144 bytes
font_04_sfnt_off0002c110.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C110 6084 bytes
font_05_sfnt_off0002d0a5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0A5 3752 bytes

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