Malicious PDF — malware analysis report

Static analysis result for SHA-256 62f4ffc03709089a…

MALICIOUS

PDF

183.7 KB Created: 2015-07-23 20:20:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6f3c2277a5be37742027bbd2bf90f51a SHA-1: ab2b41fa03ee97cb6f423f04a39d8a245b85c387 SHA-256: 62f4ffc03709089adf4832397b77d2dd70e38e5f2e459785444643ba730b1df7
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. While no scripts were extracted, the presence of a malicious URL suggests the document's purpose is to redirect users to a harmful site, likely for phishing or malware delivery.

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%86%D1%82+%D0%BF%D0%BE+%D1%84%D0%B8%D0%B7%D0%B8%D0%BA%D0%B5+2015+%D0%B7%D0%B0%D0%B4%D0%B0%D0%BD%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184352_skachat_spidhak_dlya_kss_v34.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184514_adobe_photoshop_cs7_rus_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184324_happy_wheels_igrat_onlayn_besplatno_v_polnuyu_versiyu.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_off00023bb0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BB0 3556 bytes
font_01_sfnt_off00024933.bin
1c9b894e975ab0c58a6bc6b1ca1739eb7e2d80259c266447ce87d978eb5aac6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24933 14624 bytes
font_02_sfnt_off00027686.bin
7a627aa4f44f533dfe187fce68c313eebe19211c297d1fe0bd03851618cfccf5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27686 14640 bytes
font_03_sfnt_off0002a1bc.bin
b64a79a95106a0c8c87491b7b9fd2285bf9034c2a289a91cea3def9785a965ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1BC 6688 bytes
font_04_sfnt_off0002b4e1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4E1 6084 bytes
font_05_sfnt_off0002c476.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C476 3752 bytes

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