Malicious PDF — malware analysis report

Static analysis result for SHA-256 506a7819eff2de1e…

MALICIOUS

PDF

188.1 KB Created: 2015-08-08 12:34:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cd3bdba27d8f3ba60036824454a36253 SHA-1: 9089e7a4c17c7cd41b4814a395ded79350f860f4 SHA-256: 506a7819eff2de1e10f0b6fd8a4ac093b7757970595dc4eebbff195f862fd101
90 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 link to a known malicious redirector. The embedded URL is likely part of a phishing or malware distribution scheme. No scripts were extracted, and the document body was not human-readable, limiting further analysis of the specific lure.

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=landwirtschafts+simulator+2011+%D1%80%D1%83%D1%81%D0%B8%D1%84%D0%B8%D0%BA%D0%B0%D1%82%D0%BE%D1%80+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383797_skachat_fluder_dlya_skype.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4251/4251891_skachat_dom_2_svezhie_serii_besplatno_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4388/4388788_pdd_rf_2014_s_kommentariyami_i_illyustraciyami_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002adf7.bin
2a9aac850f7e64bf2ab0da1510e849d622cbbbd5d6aa225c9a92f7713550bde1		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2ADF7 8260 bytes
font_00_sfnt_off00024536.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24536 3556 bytes
font_01_sfnt_off000252b9.bin
f8424ae2d8a5789f1feedebb1f66b767bf1d68c9eea22d8f4cba2283da9771a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252B9 15252 bytes
font_02_sfnt_off000281bd.bin
52e313c119a937359d0778b8eecb24e586f9f800b629ed20a7e4ad31b92c7a0e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281BD 15012 bytes
font_04_sfnt_off0002c6c2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6C2 6084 bytes
font_05_sfnt_off0002d657.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D657 3752 bytes

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