Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a3f149e0fea68fa…

MALICIOUS

PDF

185.3 KB Created: 2015-08-05 17:08:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bc2b40111864595b4d56e92771b03467 SHA-1: 7da8905a726382eec19f3197f6fda4341b8cc61b SHA-256: 2a3f149e0fea68fa5303f8bd91cae196cc0b323efb64685dd6d63a3703a038d9
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 direct link to a known malicious redirector infrastructure. This indicates the document is likely part of a phishing or malware distribution campaign. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%B9%D1%82%D0%B8+%D1%82%D0%B5%D1%81%D1%82+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305417_viktor_coy_remiksuy_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305552_luchshie_igruy_2013_goda_na_pc_skachat_torrent_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305729_portfolio_uchenika_4_klassa_shablonuy_dlya_malchika.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024200.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24200 3556 bytes
font_01_sfnt_off00024f83.bin
3e5a2a2ac7f4e23037dcae96c7b129ebbeae581a019ed75f50aad9812f200b01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F83 14256 bytes
font_02_sfnt_off00027c42.bin
d129b2306b70ce91da7e21aa5dc95ff0e57120c5b3b157257a57119c7bcd55f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C42 14640 bytes
font_03_sfnt_off0002a77b.bin
c19da31aca9677def67faa8297e4fa22f4aac616b0197d53076b4c72fe288de8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A77B 6924 bytes
font_04_sfnt_off0002bb89.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB89 6084 bytes
font_05_sfnt_off0002cb1e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB1E 3752 bytes

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