Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b3e7c5b2db16554…

MALICIOUS

PDF

184.6 KB Created: 2015-08-04 03:22:25 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6) First seen: 2018-02-19
MD5: c95c4beb4ccf464a09c0ae801593d832 SHA-1: daec463c740fb97bb3ad87b2dd7e79047625c881 SHA-256: 9b3e7c5b2db165542440f912862e8f9684ec0e4113f124d851b98adfe1a6c977
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, and the document body was truncated, limiting further analysis of the exact payload.

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%90%D0%BA%D1%82+%D0%B4%D0%B5%D1%84%D0%B5%D0%BA%D1%82%D0%BE%D0%B2%D0%BA%D0%B8+%D0%B0%D0%B2%D1%82%D0%BE%D0%B7%D0%B0%D0%BF%D1%87%D0%B0%D1%81%D1%82%D0%B8+%D0%B1%D0%BB%D0%B0%D0%BD%D0%BA&charset=utf-8 In PDF document text
    • http://fastpic.ru/In PDF document text
    • http://www.liveinternet.ru/clickIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4221/4221686_sendex_cracked_by.pdfIn PDF document text
    • http://img1.liveinternet.ru/images/attach/c/5//4253/4253876_kinoteatr_premer_v_eyske_raspisanie_filmov.pdfIn PDF document text
    • http://img0.liveinternet.ru/images/attach/c/5//4228/4228242_sverhestestvennoe_9_sezon_skachat_torrent_besplatno.pdfIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ed2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23ED2 3556 bytes
font_01_sfnt_off00024c55.bin
76c6236472fd2b2b9cf178660782f9977c10497c41306f1888be019e3d39d479		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C55 14984 bytes
font_02_sfnt_off00027a58.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A58 14468 bytes
font_03_sfnt_off0002a50a.bin
73660324b7ae3dae1a9704bc3278766438925f9941b9ffd5e6f466353977003a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A50A 6776 bytes
font_04_sfnt_off0002b899.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B899 6084 bytes
font_05_sfnt_off0002c82e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C82E 3752 bytes

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