Malicious PDF — malware analysis report

Static analysis result for SHA-256 72ccd450ffef3018…

MALICIOUS

PDF

187.2 KB Created: 2015-07-24 13:30:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 894f0eeea69c81c68429b8a6e8a24d57 SHA-1: 0308480387133c31a0e0d871d676395ce61c7b0c SHA-256: 72ccd450ffef30189b893aabe6edc218b05dfc22b9d622e6eede1841d8027551
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was flagged by a malicious redirector heuristic, indicating it contains a link to known malicious infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL http://botcraftman.ru/ is likely part of a phishing or malware distribution chain, aiming to trick users into downloading further malicious content.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+kontaktmaster+extra+%D0%BF%D0%BE%D0%BB%D0%BD%D0%B0%D1%8F+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8F+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191300_skachat_sbornik_klubnoy_muzuyki_2012_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185266_chartova_dyuzhina_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191654_horhe_servantes_bibliya_grovera_skachat_besplatno.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_off0002ac57.bin
a81f978e4ccde2541355c4086161281ae62e2ee3d9bd1073b566aae66ba606ad		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AC57 7704 bytes
font_00_sfnt_off00024528.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24528 3556 bytes
font_01_sfnt_off000252ab.bin
812ff840a1cda2eedabe9293fdd801ee2acadb21d7ad46ccd059e6cc7b8befed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252AB 14744 bytes
font_02_sfnt_off00028090.bin
faffe54e7c70d89343d8d1bf87ea72fb4e1c357995d2f7b08e2caaacbcd0cb4f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28090 14808 bytes
font_04_sfnt_off0002c30b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C30B 6084 bytes
font_05_sfnt_off0002d2a0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2A0 3752 bytes

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