Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb7db7da8b424dc0…

MALICIOUS

PDF

186.7 KB Created: 2015-07-23 20:37:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 3193740cda3bd52917251d9616a02b81 SHA-1: bfde8ec97cd480ecfa6304fdb2e037c290c0a27c SHA-256: eb7db7da8b424dc01785982f55630879d3505ac5d78674b2ac5fd849a6a96213
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious activity. No scripts were extracted, but the presence of a malicious link suggests a phishing or malware delivery attempt.

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%BA%D0%B8%D1%82%D0%B0%D0%BC%D0%B8+%D0%BC%D0%B0%D1%81%D0%B0%D0%BE+%D1%81%D0%B0%D0%BC%D1%83%D1%80%D0%B0%D0%B9+%D0%B1%D0%B5%D0%B7+%D0%BC%D0%B5%D1%87%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184371_skachat_blok_launcher_pro_dlya_maynkraft_095.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183174_kursovoy_proekt_po_arhitekture_mnogoyetazhnuyy_zhiloy_dom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184406_vvedenie_v_neyrotransforming_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246a2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246A2 3556 bytes
font_01_sfnt_off00025425.bin
e47b3a66aceb22824984c3f9c93bbc930cecc3fa860f22a91379235451530832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25425 14708 bytes
font_02_sfnt_off0002825c.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2825C 14468 bytes
font_03_sfnt_off0002ad0e.bin
66b00e0d05ba829df14e6a914373f4410b0f983c15d3eec6813c16d25e7c62a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD0E 6936 bytes
font_04_sfnt_off0002c10f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C10F 6084 bytes
font_05_sfnt_off0002d0a4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0A4 3752 bytes

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