Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230831-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/09/2023, 10:36

General

  • Target

    2c9b3812d538e2be4d0ad9fe35d1c151d97b06d1089f8fa6ae9873b25dae39ab.exe

  • Size

    280KB

  • MD5

    7baeadc564bed8e78c2bdaa4238eebdc

  • SHA1

    a1b76f005a4d789974ce997ed6f3c0990a86ff4d

  • SHA256

    2c9b3812d538e2be4d0ad9fe35d1c151d97b06d1089f8fa6ae9873b25dae39ab

  • SHA512

    8f85df10855baa02fc941a018760c60162b0d752543bea91b73579164bbaed2aa41e73d10517bc8df73e33d16995914bdc91b70a0d27d28e39d2c5866ab1159b

  • SSDEEP

    6144:NXSQ8BCMis1TMrRQwy7eIeCDbFcEOkCybEaQRXr9HNdvOa:NXv8BCLocRZy7eIeyb1Okx2LIa

Score
8/10
upx

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • UPX packed file 8 IoCs

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

  • Unexpected DNS network traffic destination 1 IoCs

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

  • Drops file in System32 directory 16 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: LoadsDriver 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 16 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2616
    • C:\Users\Admin\AppData\Local\Temp\2c9b3812d538e2be4d0ad9fe35d1c151d97b06d1089f8fa6ae9873b25dae39ab.exe
      "C:\Users\Admin\AppData\Local\Temp\2c9b3812d538e2be4d0ad9fe35d1c151d97b06d1089f8fa6ae9873b25dae39ab.exe"
      2⤵
      • Checks computer location settings
      • Drops file in System32 directory
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Users\Admin\AppData\Local\Temp\2c9b3812d538e2be4d0ad9fe35d1c151d97b06d1089f8fa6ae9873b25dae39ab.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4896
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 1
          4⤵
          • Delays execution with timeout.exe
          PID:3892
    • C:\Program Files\Common Files\qwinsta.exe
      "C:\Program Files\Common Files\qwinsta.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Drops file in System32 directory
      • Drops file in Windows directory
      • Checks SCSI registry key(s)
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4912
  • C:\Windows\system32\winlogon.exe
    winlogon.exe
    1⤵
      PID:632
    • C:\Windows\Syswow64\f7357ce4
      C:\Windows\Syswow64\f7357ce4
      1⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4136
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 1 & del /Q /F "C:\Windows\Syswow64\f7357ce4"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2324
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 1
          3⤵
          • Delays execution with timeout.exe
          PID:4288

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Program Files\Common Files\qwinsta.exe

      Filesize

      30KB

      MD5

      3ed9ccc06af18ef822e1794feaec6183

      SHA1

      61bb46e5d659efe16e5c019eabca1aa1d5cd8f8f

      SHA256

      08ac265f1888731d6ff54d762fa08b06b172a9424b66ce113afcefef9759c37b

      SHA512

      c07f8fb0cb5fb1c6e81ab7495653373f6d8f6ac4ce49cc04a337155ee22c9987e950f2676be7b9bbda94a72b3621bf32e607fbdc96d85ed416820a16b7d003e6

    • C:\Windows\SysWOW64\f7357ce4

      Filesize

      280KB

      MD5

      b29ef5f4fd16537a0d8428d9ac9b1d0c

      SHA1

      a16b99f2ce660cc1a2e8fff7b128db8b1f0fea84

      SHA256

      a3e83eda077e12280ef463c623e50c9e37ae3a28b0a1cf39b2a7da813fd31933

      SHA512

      82c7bb50908135869a264d492190510d07cdfb48fb977a9d87622934934995d21855bd7094aea7c60a6b64a15cad742875af07d68a197e9c3c821a3996db7c6d

    • C:\Windows\SysWOW64\f7357ce4

      Filesize

      280KB

      MD5

      b29ef5f4fd16537a0d8428d9ac9b1d0c

      SHA1

      a16b99f2ce660cc1a2e8fff7b128db8b1f0fea84

      SHA256

      a3e83eda077e12280ef463c623e50c9e37ae3a28b0a1cf39b2a7da813fd31933

      SHA512

      82c7bb50908135869a264d492190510d07cdfb48fb977a9d87622934934995d21855bd7094aea7c60a6b64a15cad742875af07d68a197e9c3c821a3996db7c6d

    • memory/632-23-0x000001E997750000-0x000001E997778000-memory.dmp

      Filesize

      160KB

    • memory/632-20-0x000001E997740000-0x000001E997743000-memory.dmp

      Filesize

      12KB

    • memory/632-65-0x000001E997790000-0x000001E997791000-memory.dmp

      Filesize

      4KB

    • memory/1936-31-0x0000000000B50000-0x0000000000BDE000-memory.dmp

      Filesize

      568KB

    • memory/1936-22-0x0000000000B50000-0x0000000000BDE000-memory.dmp

      Filesize

      568KB

    • memory/1936-0-0x0000000000B50000-0x0000000000BDE000-memory.dmp

      Filesize

      568KB

    • memory/2616-7-0x0000000002810000-0x0000000002813000-memory.dmp

      Filesize

      12KB

    • memory/2616-48-0x00000000081C0000-0x00000000082B7000-memory.dmp

      Filesize

      988KB

    • memory/2616-10-0x0000000002830000-0x0000000002831000-memory.dmp

      Filesize

      4KB

    • memory/2616-49-0x0000000002830000-0x0000000002831000-memory.dmp

      Filesize

      4KB

    • memory/2616-8-0x00000000081C0000-0x00000000082B7000-memory.dmp

      Filesize

      988KB

    • memory/2616-6-0x0000000002810000-0x0000000002813000-memory.dmp

      Filesize

      12KB

    • memory/2616-5-0x0000000002810000-0x0000000002813000-memory.dmp

      Filesize

      12KB

    • memory/4136-24-0x00000000008B0000-0x000000000093E000-memory.dmp

      Filesize

      568KB

    • memory/4136-4-0x00000000008B0000-0x000000000093E000-memory.dmp

      Filesize

      568KB

    • memory/4136-47-0x00000000008B0000-0x000000000093E000-memory.dmp

      Filesize

      568KB

    • memory/4912-60-0x00000147A9C50000-0x00000147A9D1B000-memory.dmp

      Filesize

      812KB

    • memory/4912-70-0x00000147AA240000-0x00000147AA24A000-memory.dmp

      Filesize

      40KB

    • memory/4912-59-0x00007FF8769A0000-0x00007FF8769B0000-memory.dmp

      Filesize

      64KB

    • memory/4912-18-0x00000147A81C0000-0x00000147A81C1000-memory.dmp

      Filesize

      4KB

    • memory/4912-61-0x00000147AA230000-0x00000147AA232000-memory.dmp

      Filesize

      8KB

    • memory/4912-62-0x00000147A81C0000-0x00000147A81C1000-memory.dmp

      Filesize

      4KB

    • memory/4912-63-0x00000147AA240000-0x00000147AA241000-memory.dmp

      Filesize

      4KB

    • memory/4912-64-0x00000147AA240000-0x00000147AA24A000-memory.dmp

      Filesize

      40KB

    • memory/4912-15-0x00000147A9C50000-0x00000147A9D1B000-memory.dmp

      Filesize

      812KB

    • memory/4912-66-0x00000147AA240000-0x00000147AA241000-memory.dmp

      Filesize

      4KB

    • memory/4912-67-0x00000147AA5A0000-0x00000147AA640000-memory.dmp

      Filesize

      640KB

    • memory/4912-69-0x00000147AA650000-0x00000147AA65F000-memory.dmp

      Filesize

      60KB

    • memory/4912-68-0x00000147AA240000-0x00000147AA242000-memory.dmp

      Filesize

      8KB

    • memory/4912-17-0x00007FF8769A0000-0x00007FF8769B0000-memory.dmp

      Filesize

      64KB

    • memory/4912-71-0x00000147AA250000-0x00000147AA251000-memory.dmp

      Filesize

      4KB

    • memory/4912-72-0x00000147AA260000-0x00000147AA261000-memory.dmp

      Filesize

      4KB

    • memory/4912-73-0x00000147AA250000-0x00000147AA251000-memory.dmp

      Filesize

      4KB

    • memory/4912-74-0x00000147AA640000-0x00000147AA641000-memory.dmp

      Filesize

      4KB

    • memory/4912-75-0x00000147AA240000-0x00000147AA241000-memory.dmp

      Filesize

      4KB

    • memory/4912-76-0x00000147AA6B0000-0x00000147AA6C0000-memory.dmp

      Filesize

      64KB

    • memory/4912-77-0x00000147AA250000-0x00000147AA251000-memory.dmp

      Filesize

      4KB

    • memory/4912-78-0x00000147AA5A0000-0x00000147AA640000-memory.dmp

      Filesize

      640KB

    • memory/4912-79-0x00000147AA240000-0x00000147AA242000-memory.dmp

      Filesize

      8KB

    • memory/4912-80-0x00000147AA640000-0x00000147AA641000-memory.dmp

      Filesize

      4KB

    • memory/4912-81-0x00000147AA6B0000-0x00000147AA6C0000-memory.dmp

      Filesize

      64KB