Malicious PDF — malware analysis report

Static analysis result for SHA-256 741ebd822db32c18…

MALICIOUS

PDF

185.1 KB Created: 2015-08-03 23:49:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2c36efc0e5bc1b1fe8a554226a707ec8 SHA-1: 9ae6c773d740f4ccaffcaef7554fe055bbe17bfa SHA-256: 741ebd822db32c188f5a6b4e8e011ec06ecb8e4ac8c7f6c42b3c8a6d3a103466
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 link to a known malicious redirector. The redirector URL is http://botcraftman.ru/?lip&keyword=%D0%BA%D0%BE%D1%81%D1%82%D0%B8+1+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware distribution.

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=%D0%BA%D0%BE%D1%81%D1%82%D0%B8+1+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%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/6//4288/4288160_gta_super_kars_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4253/4253358_minecraft_pocket_edition_0_9_0.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4229/4229446_skachat_uzbekskoe_porno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002423b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2423B 3556 bytes
font_01_sfnt_off00024fbe.bin
df85457a37e9eeb2c45776ee51b124a8ca362d1c7e4fb2cd2b9aa34a7ffe9991		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FBE 15360 bytes
font_02_sfnt_off00027f44.bin
dde8cb3db78f49492d397de1013a074ab9c596bc0508faa33f94bd64189db0ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F44 14468 bytes
font_03_sfnt_off0002a9f7.bin
db909d4b56bcebb9410b8e70f37ec634e842350fac231b4dbf1b732dfcdd5584		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9F7 6028 bytes
font_04_sfnt_off0002bab9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAB9 6084 bytes
font_05_sfnt_off0002ca4e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA4E 3752 bytes

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