Malicious PDF — malware analysis report

Static analysis result for SHA-256 031256ec62fbc9cf…

MALICIOUS

PDF

183.7 KB Created: 2015-08-05 16:37:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5f4538103bcac864355210dbe2e4f0e6 SHA-1: fa4c6e2bb5b36eb6c4f59716a92d7f073c9617b6 SHA-256: 031256ec62fbc9cf10301792862f5b49031bc1f6eb2ce3ea47ca3a5cd429c797
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that is flagged as a malicious redirector. This indicates the document is likely intended to lure users to a malicious site, potentially for phishing or to download further malware. The ML classifier also strongly indicated maliciousness.

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%BF%D0%BE%D1%80%D0%BD%D0%BE+%D0%BC%D0%B0%D1%81%D1%81%D0%B0%D0%B6+%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/6//4305/4305461_skachat_sohranenie_dlya_stalker_chistoe_nebo.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305478_skachat_nodvd_dlya_gta_4.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305158_skachat_melodiyu_radio_mayak.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d84.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D84 3556 bytes
font_01_sfnt_off00024b07.bin
1e1f6de8551356356721bb6b3ad9a608866703d8662b2f575318ba0b13a742ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B07 14544 bytes
font_02_sfnt_off0002782b.bin
fbe4af72ea4b6832e02f3a94d39805fe74296d1f62d5d4f3c350b4dd983b7d89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2782B 14468 bytes
font_03_sfnt_off0002a2d9.bin
a99feb946e698a3d189fce885b8f4f88e1350a8f687835dd0a19dcd4a9879832		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2D9 6384 bytes
font_04_sfnt_off0002b4e2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4E2 6084 bytes
font_05_sfnt_off0002c477.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C477 3752 bytes

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