Malicious PDF — malware analysis report

Static analysis result for SHA-256 dcba4f4971be585c…

MALICIOUS

PDF

185.8 KB Created: 2015-07-26 10:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: caba59ba229877fc5e70738a487e0a79 SHA-1: 402b67010dea81ce1150cd95fcf00ff041a5f0b1 SHA-256: dcba4f4971be585cce1d72931995af43af7f8c564545df9d170c5aa11f802a13
90 Risk Score

Malware Insights

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

The PDF document was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is highly suspicious and likely serves as a gateway to a phishing or malware distribution page. No scripts were extracted, but the presence of the malicious link strongly suggests a social engineering attack aimed at redirecting the user to a harmful destination.

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%D1%88%D1%83+%D0%B3%D0%B8%D0%B0+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%D0%B3%D1%83%D1%89%D0%B8%D0%BD+9+%D0%BA%D0%BB%D0%B0%D1%81%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204034_hay_day_skachat_na_kompyuter_besplatno_windows_7.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4211/4211983_simulyator_bomzha_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189638_blank_spravki_dlya_polucheniya_kredita_v_vtb_24.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243a1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243A1 3556 bytes
font_01_sfnt_off00025124.bin
dcad40f6e6c5d250275f979c867af5aaacc574429bac18a7c4a5d3e0af9b078a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25124 14504 bytes
font_02_sfnt_off00027e33.bin
8e7364f42fde6e38654ef52d0f59e81bc2243873409a00acfcd74d888fed70d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E33 14700 bytes
font_03_sfnt_off0002a988.bin
d755d4f173250062c2d06304f709504aaee9b7873cec0be1755b652ad57ba2f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A988 6824 bytes
font_04_sfnt_off0002bd3f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD3F 6084 bytes
font_05_sfnt_off0002ccd4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCD4 3752 bytes

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