Malicious PDF — malware analysis report

Static analysis result for SHA-256 0dc33d72a27b8770…

MALICIOUS

PDF

184.2 KB Created: 2015-07-24 00:20:32 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c0a6f84bad5d54cf5a64b685724cbd4b SHA-1: 1b94e1fbf994ce679f8e7152dd8175de66200a1d SHA-256: 0dc33d72a27b87707ac62ac6ea4aed6c9af350e1f7fb7856cc3468267f4b3a52
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded URL that points to a known malicious redirector. This suggests the document is designed to lure the user to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious redirector is a strong indicator of malicious intent.

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=explay+surfer+732+3g+%D0%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184720_90011.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184457_spravka_o_srednem_zarabotke_dlya_centra_zanyatosti_blank_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185595_angry_birds_go_skachat_na_kompyuter_windows_7.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a1bf.bin
11303221cd53e70a5e6844c160afa2a07de4dab6dfe546c9990101f13d5e6206		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A1BF 7300 bytes
font_00_sfnt_off00023ab0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23AB0 3556 bytes
font_01_sfnt_off00024833.bin
7fdbf39094ab1264f97cf03badd3697c2ef286df0e0e768291ac4fe2626d3125		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24833 14916 bytes
font_02_sfnt_off0002762c.bin
08b0ab6147aafcbd0e4f61262d9c7bf74110bf61835ad236e0e3016b3e6f4db0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2762C 14732 bytes
font_04_sfnt_off0002b724.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B724 6084 bytes
font_05_sfnt_off0002c6b9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6B9 3752 bytes

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