Malicious PDF — malware analysis report

Static analysis result for SHA-256 70b40c2e28910f0b…

MALICIOUS

PDF

182.3 KB Created: 2015-07-26 09:43:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5ad25f0a34003cb46b839fb99e81086b SHA-1: 53c9467d28839d69fcae9a3729ef7802e309ecf4 SHA-256: 70b40c2e28910f0bbad54e4db7a88e0bb9b69beba8a77e8de46fbafb4748a6ab
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by a malicious redirector link heuristic, pointing to botcraftman.ru. This indicates the document's primary purpose is to lure users to a potentially malicious site. No scripts were extracted, but the presence of a malicious URL is a strong indicator of a phishing or malware distribution attempt.

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=sas4wince+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197600_skachat_windows_81_x32_rus_torrent_2014.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4215/4215227_proigruyvatel_windows_media_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4215/4215416_sony_vegas_pro_12_instrukciya_na_russkom.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_off00029c5e.bin
f8479af7f3ccc027ff65773965acd764543a17008e80ce401f6ec5b765069c51		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29C5E 6608 bytes
font_00_sfnt_off00023799.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23799 3556 bytes
font_01_sfnt_off0002451c.bin
ebd5b640f22a2298a1e60c8d5e82b14691f7a477604bceefdf924a489dab000b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2451C 14052 bytes
font_02_sfnt_off000270c6.bin
f10c52731dc4e393b0f801ab7895e5720c4dfed4b59984c215d599b6faae5721		 pdf-font-stream PDF embedded font (sfnt) at offset 0x270C6 14752 bytes
font_04_sfnt_off0002af34.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF34 6084 bytes
font_05_sfnt_off0002bec9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEC9 3752 bytes

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