Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5fbd10221d443b2…

MALICIOUS

PDF

185.7 KB Created: 2015-08-08 09:57:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a00266b2da4f1b4bf2e5109764cf8cba SHA-1: 9bdf0439cec33a601a0b7b78ca590cfb2ebcdbcd SHA-256: d5fbd10221d443b27785904727a3d2388a3a5a2f630a1fbec839466b519750dc
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. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

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%85%D0%B8%D1%82%D1%8B+80-%D1%85+%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+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384055_knights_of_the_temple_2_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384182_ani_lorak_notuy_dlya_fortepiano.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383718_celuy_i_znakomsya_dostizheniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024281.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24281 3556 bytes
font_01_sfnt_off00025004.bin
87dd3a5585a11724b2ee3a40ebab5c7a2720787d92f0c2c4e83cb99629d0e7bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25004 14348 bytes
font_02_sfnt_off00027cf7.bin
5cc9472e017b47839259ef92d5ee79a329253615a55fd1391372c26a37668ee2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CF7 14604 bytes
font_03_sfnt_off0002a7fc.bin
7cd25e1b657d62c970d749bf63809a9c5895858cd468572afb678cdc689e9d97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7FC 7188 bytes
font_04_sfnt_off0002bcfb.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BCFB 6084 bytes
font_05_sfnt_off0002cc90.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC90 3752 bytes

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