Malicious PDF — malware analysis report

Static analysis result for SHA-256 348447e9ff24947d…

MALICIOUS

PDF

185.6 KB Created: 2015-07-24 03:57:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c158f7e5b1d1910e1b1f283820f2a316 SHA-1: f653c67820c84d4e95a59a676f61efd4e7ee294a SHA-256: 348447e9ff24947d098370bf71ad8b88066119f40d0d91d40eaf12b203a2d0ad
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 `http://botcraftman.ru/?lip&keyword=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D1%83+%D0%B4%D0%BB%D1%8F+htc+wildfire+a3333&charset=utf-8` is the primary indicator of malicious intent. No scripts were extracted, and the document body was truncated, 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D1%80%D0%BE%D1%88%D0%B8%D0%B2%D0%BA%D1%83+%D0%B4%D0%BB%D1%8F+htc+wildfire+a3333&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185354_luntik_novuye_serii_2013_skachat_torrent_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185596_kulgu_tekst_chitat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184720_90011.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e57.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E57 3556 bytes
font_01_sfnt_off00024bda.bin
8abda28b87f7ecbc7c904c7946a83899aad9296a1f84d01f2691bd8516af8a45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BDA 14992 bytes
font_02_sfnt_off00027a15.bin
328fea5c21049af8580ec599023cfae46415d7989991f65f0b2df8a2d2c0e589		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A15 14904 bytes
font_03_sfnt_off0002a5ed.bin
e69de2905d113931acf00cfd4016792b65ed64a690275b3218ba968376a716af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5ED 7616 bytes
font_04_sfnt_off0002bc87.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC87 6084 bytes
font_05_sfnt_off0002cc1c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC1C 3752 bytes

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