Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    10/11/2020, 08:00

General

  • Target
    a2e2b9c58537f3211cf4a643b93c3526002709eabdee27f0cbbfb9fc1ed63acb.exe
  • Size 5.9MB
  • Sample201110-vrp35jrg6e
  • SHA256 a2e2b9c58537f3211cf4a643b93c3526002709eabdee27f0cbbfb9fc1ed63acb
  • 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\a2e2b9c58537f3211cf4a643b93c3526002709eabdee27f0cbbfb9fc1ed63acb.exe
    "C:\Users\Admin\AppData\Local\Temp\a2e2b9c58537f3211cf4a643b93c3526002709eabdee27f0cbbfb9fc1ed63acb.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Windows\System\LNgEVch.exe
      C:\Windows\System\LNgEVch.exe
      2⤵
      • Executes dropped EXE
      PID:1988
    • C:\Windows\System\LbqAlzx.exe
      C:\Windows\System\LbqAlzx.exe
      2⤵
      • Executes dropped EXE
      PID:1292
    • C:\Windows\System\Wnpfxvn.exe
      C:\Windows\System\Wnpfxvn.exe
      2⤵
      • Executes dropped EXE
      PID:840
    • C:\Windows\System\QoqUyqh.exe
      C:\Windows\System\QoqUyqh.exe
      2⤵
      • Executes dropped EXE
      PID:320
    • C:\Windows\System\nJhGZjm.exe
      C:\Windows\System\nJhGZjm.exe
      2⤵
      • Executes dropped EXE
      PID:1052
    • C:\Windows\System\GtTtrdQ.exe
      C:\Windows\System\GtTtrdQ.exe
      2⤵
      • Executes dropped EXE
      PID:1508
    • C:\Windows\System\CZOzawH.exe
      C:\Windows\System\CZOzawH.exe
      2⤵
      • Executes dropped EXE
      PID:1368
    • C:\Windows\System\ZNrZTBQ.exe
      C:\Windows\System\ZNrZTBQ.exe
      2⤵
      • Executes dropped EXE
      PID:568
    • C:\Windows\System\errRGfr.exe
      C:\Windows\System\errRGfr.exe
      2⤵
      • Executes dropped EXE
      PID:1800
    • C:\Windows\System\gnpTuUl.exe
      C:\Windows\System\gnpTuUl.exe
      2⤵
      • Executes dropped EXE
      PID:1720
    • C:\Windows\System\MmpBuFN.exe
      C:\Windows\System\MmpBuFN.exe
      2⤵
      • Executes dropped EXE
      PID:1780
    • C:\Windows\System\TgPCzKl.exe
      C:\Windows\System\TgPCzKl.exe
      2⤵
      • Executes dropped EXE
      PID:1700
    • C:\Windows\System\wcMtqSv.exe
      C:\Windows\System\wcMtqSv.exe
      2⤵
      • Executes dropped EXE
      PID:1620
    • C:\Windows\System\gsmNhsV.exe
      C:\Windows\System\gsmNhsV.exe
      2⤵
      • Executes dropped EXE
      PID:1424
    • C:\Windows\System\NwlOclU.exe
      C:\Windows\System\NwlOclU.exe
      2⤵
      • Executes dropped EXE
      PID:604
    • C:\Windows\System\DPWEegb.exe
      C:\Windows\System\DPWEegb.exe
      2⤵
      • Executes dropped EXE
      PID:912
    • C:\Windows\System\QJhYWxx.exe
      C:\Windows\System\QJhYWxx.exe
      2⤵
      • Executes dropped EXE
      PID:1716
    • C:\Windows\System\LPSbSas.exe
      C:\Windows\System\LPSbSas.exe
      2⤵
      • Executes dropped EXE
      PID:280
    • C:\Windows\System\DTSXrBL.exe
      C:\Windows\System\DTSXrBL.exe
      2⤵
      • Executes dropped EXE
      PID:1484
    • C:\Windows\System\lAcHNVL.exe
      C:\Windows\System\lAcHNVL.exe
      2⤵
      • Executes dropped EXE
      PID:1648
    • C:\Windows\System\iPzqoHl.exe
      C:\Windows\System\iPzqoHl.exe
      2⤵
      • Executes dropped EXE
      PID:552

Network

        MITRE ATT&CK Matrix

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        Downloads