Malicious PDF — malware analysis report

Static analysis result for SHA-256 2604fbbfbfee648d…

MALICIOUS

PDF

184.4 KB Created: 2015-07-26 06:24:33 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a7877cc3eac2e522332e2f3523742683 SHA-1: c57478dfe119432d77bb6d08151f273919cf99db SHA-256: 2604fbbfbfee648d96b7e75363d85ccb51579c60268f84dee7495938b9958ad5
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 infrastructure. The embedded URL, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, and the document body was not parsable.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B1%D0%BE%D1%80%D0%BD%D0%B8%D0%BA+%D0%BC%D0%B8%D0%BD%D0%B8+%D0%B8%D0%B3%D1%80+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189839_blank_osmotr_anesteziologa.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193548_skachat_igru_lego_star_vars_2_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4211/4211137_yevelina_hromchenko_kniga.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f8a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F8A 3556 bytes
font_01_sfnt_off00024d0d.bin
2460d9acdc4a12cc0eab2cba90d858f2e1c7d2a525b57c2a091af82eb245d897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D0D 14448 bytes
font_02_sfnt_off00027a5c.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A5C 14468 bytes
font_03_sfnt_off0002a50e.bin
5efb0ed21739fe62a4dff52a027473e39bd885bf20432266a6a26eb7618ff613		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A50E 6516 bytes
font_04_sfnt_off0002b7a0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7A0 6084 bytes
font_05_sfnt_off0002c735.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C735 3752 bytes

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