Analysis

  • max time kernel
    125s
  • max time network
    133s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10/11/2020, 06:56

General

  • Target
    eb5c2b35fe22ebceaaf361677c097440da69f522a2c8cb9bb9df9708c0c822a1.exe
  • Size 5.9MB
  • Sample201110-x3bpfesfss
  • SHA256 eb5c2b35fe22ebceaaf361677c097440da69f522a2c8cb9bb9df9708c0c822a1
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Cobalt Strike reflective loader 42 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

  • Executes dropped EXE 21 IoCs
  • UPX packed file 42 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 21 IoCs
  • JavaScript code in executable 42 IoCs
  • Drops file in Windows directory 21 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\eb5c2b35fe22ebceaaf361677c097440da69f522a2c8cb9bb9df9708c0c822a1.exe
    "C:\Users\Admin\AppData\Local\Temp\eb5c2b35fe22ebceaaf361677c097440da69f522a2c8cb9bb9df9708c0c822a1.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Windows\System\YcJNBAA.exe
      C:\Windows\System\YcJNBAA.exe
      2⤵
      • Executes dropped EXE
      PID:1964
    • C:\Windows\System\CwEuLgy.exe
      C:\Windows\System\CwEuLgy.exe
      2⤵
      • Executes dropped EXE
      PID:1916
    • C:\Windows\System\eWuOeHE.exe
      C:\Windows\System\eWuOeHE.exe
      2⤵
      • Executes dropped EXE
      PID:1720
    • C:\Windows\System\GskkfYN.exe
      C:\Windows\System\GskkfYN.exe
      2⤵
      • Executes dropped EXE
      PID:1804
    • C:\Windows\System\tfEtYHr.exe
      C:\Windows\System\tfEtYHr.exe
      2⤵
      • Executes dropped EXE
      PID:1312
    • C:\Windows\System\UwPoNCA.exe
      C:\Windows\System\UwPoNCA.exe
      2⤵
      • Executes dropped EXE
      PID:824
    • C:\Windows\System\xqqVXsY.exe
      C:\Windows\System\xqqVXsY.exe
      2⤵
      • Executes dropped EXE
      PID:1552
    • C:\Windows\System\JZAoYmW.exe
      C:\Windows\System\JZAoYmW.exe
      2⤵
      • Executes dropped EXE
      PID:1528
    • C:\Windows\System\FbzyZZw.exe
      C:\Windows\System\FbzyZZw.exe
      2⤵
      • Executes dropped EXE
      PID:756
    • C:\Windows\System\oGpeNnw.exe
      C:\Windows\System\oGpeNnw.exe
      2⤵
      • Executes dropped EXE
      PID:576
    • C:\Windows\System\MJiHRXR.exe
      C:\Windows\System\MJiHRXR.exe
      2⤵
      • Executes dropped EXE
      PID:788
    • C:\Windows\System\EtSjUlA.exe
      C:\Windows\System\EtSjUlA.exe
      2⤵
      • Executes dropped EXE
      PID:1496
    • C:\Windows\System\BoRUYMw.exe
      C:\Windows\System\BoRUYMw.exe
      2⤵
      • Executes dropped EXE
      PID:552
    • C:\Windows\System\lxlSpjE.exe
      C:\Windows\System\lxlSpjE.exe
      2⤵
      • Executes dropped EXE
      PID:936
    • C:\Windows\System\GFujGeu.exe
      C:\Windows\System\GFujGeu.exe
      2⤵
      • Executes dropped EXE
      PID:1192
    • C:\Windows\System\NTdXzSe.exe
      C:\Windows\System\NTdXzSe.exe
      2⤵
      • Executes dropped EXE
      PID:656
    • C:\Windows\System\HIGNVAI.exe
      C:\Windows\System\HIGNVAI.exe
      2⤵
      • Executes dropped EXE
      PID:688
    • C:\Windows\System\wjAguqW.exe
      C:\Windows\System\wjAguqW.exe
      2⤵
      • Executes dropped EXE
      PID:1304
    • C:\Windows\System\TWvAqoj.exe
      C:\Windows\System\TWvAqoj.exe
      2⤵
      • Executes dropped EXE
      PID:1612
    • C:\Windows\System\QWhIBgH.exe
      C:\Windows\System\QWhIBgH.exe
      2⤵
      • Executes dropped EXE
      PID:920
    • C:\Windows\System\DNSsUSG.exe
      C:\Windows\System\DNSsUSG.exe
      2⤵
      • Executes dropped EXE
      PID:1596

Network

        MITRE ATT&CK Matrix

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        Downloads