Malicious PDF — malware analysis report

Static analysis result for SHA-256 a04ed9bb3cceabc9…

MALICIOUS

PDF

185.8 KB Created: 2015-08-05 14:00:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0599e4255c9d524100e036cc4ec5a9c5 SHA-1: dfbf62b44070e33f721ca3f73957cac53a80fb16 SHA-256: a04ed9bb3cceabc9ee12742edabba39fa84cb4912ba2c05df62fbae55fd48ff8
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirection. This suggests the document's primary purpose is to lure the user to a harmful site.

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=rome+total+war+%D1%80%D1%83%D1%81%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/6//4304/4304571_nakrutka_dlya_tyuryagi_skachat_besplatno_bez_sms.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304711_skachat_windows_xp_x64_sp3_originalnuyy_obraz_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304587_kryak_na_football_manager_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241fa.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241FA 3556 bytes
font_01_sfnt_off00024f7d.bin
91dd334033091e9c13c9e962887f899b1a6ebfff778114a149940999547eb48c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F7D 14768 bytes
font_02_sfnt_off00027d51.bin
225bc79fe4e130abcd0f4642733444036c7295215ab9e23bb477e3cd4615d77e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D51 14816 bytes
font_03_sfnt_off0002a917.bin
78e280004a7d95a690f6507d8112101e43a63034e10e4963a8d08f2a494b3e8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A917 6968 bytes
font_04_sfnt_off0002bd59.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD59 6084 bytes
font_05_sfnt_off0002ccee.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCEE 3752 bytes

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