Malicious PDF — malware analysis report

Static analysis result for SHA-256 812846e818df2e72…

MALICIOUS

PDF

184.5 KB Created: 2015-07-23 20:08:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4e145a056e502bcb1714f664171377d1 SHA-1: 1b7bc8fe983c67608c0c3b45c4cbb2705be15efb SHA-256: 812846e818df2e72db36a7a637d98a39398fa7f94552f09e50a13a924e6b53c2
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. ClamAV also detected this file as Pdf.Dropper.Agent-7494343-0. The embedded URL is the primary indicator of malicious intent, likely serving as a delivery mechanism for further stages of an attack.

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-7494343-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494343-0
  • 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=silverfast+ai+studio+8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4183/4183199_lavrovopesochnya_kaluga_shema_proezda.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184401_vfeed_dlya_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183246_model_idef0_primer.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a254.bin
40868048e7c650c663c57cea07440523e1423953413bdff9fda3fb119fbc0b01		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A254 7452 bytes
font_00_sfnt_off00023bab.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BAB 3556 bytes
font_01_sfnt_off0002492e.bin
06668bfbc745b55a3a7f9c33e5731b023659f9a2e72af9e66a5ed14949dedd0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2492E 14480 bytes
font_02_sfnt_off00027611.bin
c62db650101c499488f9fef2db692c0856ac8ae674cc9f8e0c2b46d5536c9830		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27611 14940 bytes
font_04_sfnt_off0002b82e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B82E 6084 bytes
font_05_sfnt_off0002c7c3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7C3 3752 bytes

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