Analysis

  • max time kernel
    130s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10/11/2020, 08:00

General

  • Target
    a706fe832df8b57b3f94f6cc1b9f20d792e94f81b58e68224459b7a5afffc0e4.exe
  • Size 5.9MB
  • Sample201110-ev2e6pcmrx
  • SHA256 a706fe832df8b57b3f94f6cc1b9f20d792e94f81b58e68224459b7a5afffc0e4
  • 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\a706fe832df8b57b3f94f6cc1b9f20d792e94f81b58e68224459b7a5afffc0e4.exe
    "C:\Users\Admin\AppData\Local\Temp\a706fe832df8b57b3f94f6cc1b9f20d792e94f81b58e68224459b7a5afffc0e4.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Windows\System\OMXwlzB.exe
      C:\Windows\System\OMXwlzB.exe
      2⤵
      • Executes dropped EXE
      PID:2012
    • C:\Windows\System\AWkwWma.exe
      C:\Windows\System\AWkwWma.exe
      2⤵
      • Executes dropped EXE
      PID:2016
    • C:\Windows\System\EnwmnpN.exe
      C:\Windows\System\EnwmnpN.exe
      2⤵
      • Executes dropped EXE
      PID:2040
    • C:\Windows\System\oaAfhIr.exe
      C:\Windows\System\oaAfhIr.exe
      2⤵
      • Executes dropped EXE
      PID:1172
    • C:\Windows\System\ZELQPdo.exe
      C:\Windows\System\ZELQPdo.exe
      2⤵
      • Executes dropped EXE
      PID:1980
    • C:\Windows\System\RRTCBNX.exe
      C:\Windows\System\RRTCBNX.exe
      2⤵
      • Executes dropped EXE
      PID:1816
    • C:\Windows\System\GJCDfYM.exe
      C:\Windows\System\GJCDfYM.exe
      2⤵
      • Executes dropped EXE
      PID:1752
    • C:\Windows\System\ujZoBGV.exe
      C:\Windows\System\ujZoBGV.exe
      2⤵
      • Executes dropped EXE
      PID:1796
    • C:\Windows\System\pptvydt.exe
      C:\Windows\System\pptvydt.exe
      2⤵
      • Executes dropped EXE
      PID:1732
    • C:\Windows\System\mMqpVnI.exe
      C:\Windows\System\mMqpVnI.exe
      2⤵
      • Executes dropped EXE
      PID:1340
    • C:\Windows\System\zcWCVMY.exe
      C:\Windows\System\zcWCVMY.exe
      2⤵
      • Executes dropped EXE
      PID:1112
    • C:\Windows\System\ukuzShh.exe
      C:\Windows\System\ukuzShh.exe
      2⤵
      • Executes dropped EXE
      PID:1104
    • C:\Windows\System\lyOtAYM.exe
      C:\Windows\System\lyOtAYM.exe
      2⤵
      • Executes dropped EXE
      PID:884
    • C:\Windows\System\dbkHweR.exe
      C:\Windows\System\dbkHweR.exe
      2⤵
      • Executes dropped EXE
      PID:1352
    • C:\Windows\System\OCPtKtu.exe
      C:\Windows\System\OCPtKtu.exe
      2⤵
      • Executes dropped EXE
      PID:1336
    • C:\Windows\System\ROuuBdi.exe
      C:\Windows\System\ROuuBdi.exe
      2⤵
      • Executes dropped EXE
      PID:568
    • C:\Windows\System\fBXASTg.exe
      C:\Windows\System\fBXASTg.exe
      2⤵
      • Executes dropped EXE
      PID:524
    • C:\Windows\System\vWhMRAY.exe
      C:\Windows\System\vWhMRAY.exe
      2⤵
      • Executes dropped EXE
      PID:1128
    • C:\Windows\System\qOxWqWe.exe
      C:\Windows\System\qOxWqWe.exe
      2⤵
      • Executes dropped EXE
      PID:1708
    • C:\Windows\System\KqfuaUS.exe
      C:\Windows\System\KqfuaUS.exe
      2⤵
      • Executes dropped EXE
      PID:276
    • C:\Windows\System\ESMNbGH.exe
      C:\Windows\System\ESMNbGH.exe
      2⤵
      • Executes dropped EXE
      PID:824

Network

        MITRE ATT&CK Matrix

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        Downloads