Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dd04928ec2c3e5e…

MALICIOUS

PDF

184.1 KB Created: 2015-07-25 02:14:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 095afccb9da75bef473ca33747c434fa SHA-1: 82e4fdb3c655aed6e1bffbf56ade3e5dcf87b868 SHA-256: 1dd04928ec2c3e5e65eebca12f3ed28a1b2b0306de84a867bf95c7e1b812a09f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The presence of embedded URLs and the critical heuristic firing suggest this document is designed to lure users to a malicious 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=balance+by+pro+%D0%BA%D0%BE%D0%B4+%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191015_manga_studio_5_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184451_chak_palanik_ucelevshiy_skachat_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192040_corel_videostudio_pro_x5_skachat_besplatno_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023bc1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23BC1 3556 bytes
font_01_sfnt_off00024944.bin
d24902d7b89f3e6702bcb51b0492c006f7f12b3f7f83c93583d19cd1ae41fefb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24944 15092 bytes
font_02_sfnt_off000277ae.bin
a786a9af54f580f728eec74010504805d70019fef9a5b1ca18ff1db6ca0776ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x277AE 14596 bytes
font_03_sfnt_off0002a2c0.bin
97d7054192e5a87c83876afeccab14a7d6257405fa6b6be8d76bafa14bfada67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2C0 6896 bytes
font_04_sfnt_off0002b6bc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6BC 6084 bytes
font_05_sfnt_off0002c651.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C651 3752 bytes

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