Malicious PDF — malware analysis report

Static analysis result for SHA-256 216fe317437aa87d…

MALICIOUS

PDF

185.0 KB Created: 2015-08-05 15:56:43 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: db5627270d6278427656cc4feccc28c0 SHA-1: a3dbf0a82a75df75008022326ef786518b7b535e SHA-256: 216fe317437aa87dbd7e0230c7588bfcca03130c80767f499974d3aa1e7a6133
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a harmful website.

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%B3%D0%B0%D0%B9%D0%B4%D0%B0%D1%80+%D1%88%D0%BA%D0%BE%D0%BB%D0%B0+%D0%BA%D1%80%D0%B0%D1%82%D0%BA%D0%BE%D0%B5+%D1%81%D0%BE%D0%B4%D0%B5%D1%80%D0%B6%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304982_kak_pozhenit_personazhey_v_sims_3.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305073_igra_koschey_bessmertnuyy_ispravlennaya_versiya_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306045_a_clash_of_kings__mount_and_blade_warband.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024194.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24194 3556 bytes
font_01_sfnt_off00024f17.bin
1ee0cc945c10ce4e928f2b37a6a9ca3d8bf3b039f31d01f5dc7b86a8906c65f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F17 14912 bytes
font_02_sfnt_off00027d3c.bin
4281521c57608cd51cba8ae51768578e365ee023433536275b2ce0d642b49dc3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D3C 14520 bytes
font_03_sfnt_off0002a80b.bin
7061616d8c4946c67a455f8d7859e7792ff3d88332e264d398cc2e37ccbb288b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A80B 6476 bytes
font_04_sfnt_off0002ba56.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA56 6084 bytes
font_05_sfnt_off0002c9eb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9EB 3752 bytes

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