Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a2cc39ee7c64d9a…

MALICIOUS

PDF

184.5 KB Created: 2015-07-24 19:19:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d261d344cb3e4748b6e4fb47b13de77d SHA-1: ee9eef7652b3ee244a65101deda1d64986839c8e SHA-256: 4a2cc39ee7c64d9a91fc18be19fdf8e6a916fd6daa231d6ae8e3a0357883281e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link pointing to botcraftman.ru. The ML classifier also assigned a high probability of maliciousness. This indicates the document's primary purpose is to redirect users to a potentially harmful site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8791009-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8791009-0
  • 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC%D1%89%D0%B8%D0%BA+%D0%B8%D0%B3%D1%80+%D0%B0%D0%BB%D0%B0%D0%B2%D0%B0%D1%80&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191423_skachat_prilozhenie_origin_dlya_battlefield_3_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191589_rezultatuy_gia_po_russkomu_yazuyku_2015_altayskiy_kray.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192810_forsazh_7_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024007.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24007 3556 bytes
font_01_sfnt_off00024d8a.bin
57cdb8f7186d47ef6659de097ddbc7a20857a364110220afffe3ef0fcefd03dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D8A 14704 bytes
font_02_sfnt_off00027b1a.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B1A 14468 bytes
font_03_sfnt_off0002a5cc.bin
a58d68c0963b21138ad80e0b93cb7db2fc2b9ddb4b915aa9da7e25112d140689		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5CC 6496 bytes
font_04_sfnt_off0002b84f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B84F 6084 bytes
font_05_sfnt_off0002c7e4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7E4 3752 bytes

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