Malicious PDF — malware analysis report

Static analysis result for SHA-256 68d79093eaeaec02…

MALICIOUS

PDF

187.1 KB Created: 2015-07-26 03:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f0423fa86c5b27dbef33ee1bb5e3a7a5 SHA-1: 00d477c07f45a945b33e76af2b67b7dc95d4495d SHA-256: 68d79093eaeaec02db737a2817769b19a29ebf713a2e42a5d2bfc936d892c7df
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains an embedded link flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The link likely leads to a site designed to host further malicious content or phishing pages. No scripts were extracted, but the presence of a malicious URL 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=%D0%BA%D0%BE%D0%B2%D1%87%D0%B5%D0%B3+%D0%BC%D0%B0%D1%80%D0%BA%D0%B0+%D1%83%D1%81%D1%82%D0%B8%D0%BD%D0%BE%D0%B2%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+fb2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187265_otvetuy_po_fizike_i_exam_ru.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4204/4204968_skachat_sims_4_deluxe_edition_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210132_skachat_geroi_mecha_i_magii_5_cherez_torrent.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_off00024689.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24689 3556 bytes
font_01_sfnt_off0002540c.bin
0035576921c0dba0cf91100b8f1b59b873bce3ba45619c40f40b0f815b163d78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2540C 14988 bytes
font_02_sfnt_off00028262.bin
5539038e658857b7fa7c19e3efa7af582829fb115b0047a4cf3bc32c9050bebb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28262 14696 bytes
font_03_sfnt_off0002adce.bin
6df36d8407a6c8d27e401e5b70a66367d0dbfa6c37a5b362fd5484a6eb44062f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADCE 7164 bytes
font_04_sfnt_off0002c2b9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2B9 6084 bytes
font_05_sfnt_off0002d24e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D24E 3752 bytes

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