Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ee8db990483cdd…

MALICIOUS

PDF

186.0 KB Created: 2015-07-23 23:33:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 20cc04112fb4ad723afe90d7c9574a22 SHA-1: f4bf654d455f6b96158d28e4cfd857374277af82 SHA-256: 45ee8db990483cdde9dd4dfd8be357c5d1997c020a192df1a5802f1e6bef5edd
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to known malicious redirector infrastructure. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted, and the document body was not sufficiently readable to provide additional context.

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=the+sims+3+medieval+%D0%BF%D0%B8%D1%80%D0%B0%D1%82%D1%8B+%D0%B8+%D0%B7%D0%BD%D0%B0%D1%82%D1%8C+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184955_sims_3_moduy_dlya_vzrosluyh.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185619_chertezhi_krolichih_kletok.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185593_oleg_vinnik_skachat_albom_besplatno_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a898.bin
bcef6d38d8947e04277e10d74df3c1646f417143097d3aa70c97fffe0f586a89		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A898 7412 bytes
font_00_sfnt_off00024374.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24374 3556 bytes
font_01_sfnt_off000250f7.bin
35f065236109bdee18f58997cd2a4b920cfd900f478e013ac7f3a9fabb62c434		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250F7 14280 bytes
font_02_sfnt_off00027d20.bin
530f8e9c6c8162c57b3073279c1a99bfb603746b01215ebfaa477bbf16381b1d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D20 14780 bytes
font_04_sfnt_off0002be43.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE43 6084 bytes
font_05_sfnt_off0002cdd8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDD8 3752 bytes

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