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Analysis

  • max time kernel
    148s
  • max time network
    200s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    01/12/2022, 14:32

General

  • Target

    91a631c9bf276531c70c03ba8f34feb48f6976e9a1eac12cacf838389a2e9aac.exe

  • Size

    214KB

  • MD5

    b9127a2bf6596a1be7c9820af4641ad9

  • SHA1

    a3e39863616b50bc08aaae63f39774de0e9eb271

  • SHA256

    91a631c9bf276531c70c03ba8f34feb48f6976e9a1eac12cacf838389a2e9aac

  • SHA512

    c52c658a2c5e7be8ab88ec18735381f6666a3e3ddeaa8f1ea3096c2b8975eed7dcd533afd3541a9d38afacf619a24d14f01f32d3a88c232ec8e8fa94e64006c9

  • SSDEEP

    3072:s1IrCGCyzfGfHYYmvfB3tlLZkc+ORFRin/wYJT4hkONiVWVPk7eMgzSH+HqwN:s1WCGCyyOh9d2KRu/bJTNzYVPkMmHYp

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Unexpected DNS network traffic destination 4 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops desktop.ini file(s) 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\91a631c9bf276531c70c03ba8f34feb48f6976e9a1eac12cacf838389a2e9aac.exe
      "C:\Users\Admin\AppData\Local\Temp\91a631c9bf276531c70c03ba8f34feb48f6976e9a1eac12cacf838389a2e9aac.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe"
        3⤵
        • Deletes itself
        PID:892
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k netsvcs
    1⤵
      PID:864
    • C:\Windows\system32\csrss.exe
      %SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
      1⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:332

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

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    Downloads

    • C:\Windows\system32\consrv.dll

      Filesize

      52KB

      MD5

      6bf2039986af96d98e08824ac6c383fd

      SHA1

      0bb6384656a96943cb427baa92446f987219a02e

      SHA256

      a3e03454ff636f4cdd0a95b856ea9e7857cd3ce0fd2bc6d528ab45781349103f

      SHA512

      fae378badcd6b45d69705d11fe5feb2d9f93fa444249c13aff9b150359ffdbcfe2b160731e193d3e19b6eef18d2ef01de41549a1c2bbdf59501f901511f9068e

    • \??\globalroot\systemroot\assembly\temp\@

      Filesize

      2KB

      MD5

      033ff7fd0dd1b0d651e59067e8cf6d0b

      SHA1

      333477caf56e26c2200a677f785eebc625c58572

      SHA256

      580cc839f33b94814d757d0e6a164460e479e74800ef697ef626c7d649984b4c

      SHA512

      b769bb42019ce4dcbee6f12ac29948f266affe66cc2798a62285dadbe27b3af8cd0c32f25c638647df6814a7b16806d2b264e2c3f666a82cba3cace2a8dfcb5e

    • \Windows\System32\consrv.dll

      Filesize

      52KB

      MD5

      6bf2039986af96d98e08824ac6c383fd

      SHA1

      0bb6384656a96943cb427baa92446f987219a02e

      SHA256

      a3e03454ff636f4cdd0a95b856ea9e7857cd3ce0fd2bc6d528ab45781349103f

      SHA512

      fae378badcd6b45d69705d11fe5feb2d9f93fa444249c13aff9b150359ffdbcfe2b160731e193d3e19b6eef18d2ef01de41549a1c2bbdf59501f901511f9068e

    • memory/332-69-0x0000000001F80000-0x0000000001F91000-memory.dmp

      Filesize

      68KB

    • memory/864-72-0x00000000003B0000-0x00000000003BB000-memory.dmp

      Filesize

      44KB

    • memory/864-85-0x00000000003C0000-0x00000000003CB000-memory.dmp

      Filesize

      44KB

    • memory/864-84-0x00000000003A0000-0x00000000003A8000-memory.dmp

      Filesize

      32KB

    • memory/864-83-0x00000000003C0000-0x00000000003CB000-memory.dmp

      Filesize

      44KB

    • memory/864-82-0x00000000003A0000-0x00000000003A8000-memory.dmp

      Filesize

      32KB

    • memory/864-80-0x00000000003B0000-0x00000000003BB000-memory.dmp

      Filesize

      44KB

    • memory/864-76-0x00000000003B0000-0x00000000003BB000-memory.dmp

      Filesize

      44KB

    • memory/1208-66-0x0000000002A70000-0x0000000002A76000-memory.dmp

      Filesize

      24KB

    • memory/1208-62-0x0000000002A70000-0x0000000002A76000-memory.dmp

      Filesize

      24KB

    • memory/1208-56-0x0000000002A70000-0x0000000002A76000-memory.dmp

      Filesize

      24KB

    • memory/1788-71-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/1788-54-0x00000000760D1000-0x00000000760D3000-memory.dmp

      Filesize

      8KB

    • memory/1788-59-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB

    • memory/1788-57-0x0000000000270000-0x00000000002AE000-memory.dmp

      Filesize

      248KB

    • memory/1788-55-0x0000000000400000-0x000000000043E000-memory.dmp

      Filesize

      248KB