Analysis

  • max time kernel
    150s
  • max time network
    97s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-09-2024 17:26

General

  • Target

    c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f.exe

  • Size

    74KB

  • MD5

    38f581a49b8c5b0934119cf5452ecdee

  • SHA1

    df9ecdbc834d20b0089a337faa6cffeedb13ce16

  • SHA256

    c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f

  • SHA512

    96d79cc4e4193b76f770469a0938f8e16e86163dbbc7372288f1c1a0879d8fcd618b32ac949788a06ea763ab038369d6176ccc16d71d3c00bcb8418829fea229

  • SSDEEP

    1536:2de5KBqfBlTytHtMFyMQUZDB3af1pHfLjva+x9rru4zppUcS:2dewBltcyMQUZDB3anjjvaO9rzppUt

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 4 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 28 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Kills process with taskkill 8 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 8 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 40 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f.exe
    "C:\Users\Admin\AppData\Local\Temp\c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2976
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYANP /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:2192
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f.exe" /sc minute /mo 5
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3036
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM wscript.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:5108
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM cmd.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:1840
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYAN /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4640
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f.exe" /sc minute /mo 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2572
    • C:\Users\Admin\AppData\Local\Temp\Client.exe
      "C:\Users\Admin\AppData\Local\Temp\Client.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2404
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Delete /tn NYANP /F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1128
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\Client.exe" /sc minute /mo 5
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4948
      • C:\Windows\SysWOW64\TASKKILL.exe
        TASKKILL /F /IM wscript.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:2892
      • C:\Windows\SysWOW64\TASKKILL.exe
        TASKKILL /F /IM cmd.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:4088
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /Delete /tn NYAN /F
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5088
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\Client.exe" /sc minute /mo 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2948
  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    C:\Users\Admin\AppData\Local\Temp\Client.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3664
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYANP /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1432
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\Client.exe" /sc minute /mo 5
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3532
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM wscript.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:4636
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM cmd.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2408
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYAN /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:3824
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\Client.exe" /sc minute /mo 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2056
  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    C:\Users\Admin\AppData\Local\Temp\Client.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:832
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYANP /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:1184
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYANP /tr "C:\Users\Admin\AppData\Local\Temp\Client.exe" /sc minute /mo 5
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2192
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM wscript.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:5108
    • C:\Windows\SysWOW64\TASKKILL.exe
      TASKKILL /F /IM cmd.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:3276
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /Delete /tn NYAN /F
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4536
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /tn NYAN /tr "C:\Users\Admin\AppData\Local\Temp\Client.exe" /sc minute /mo 1
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Client.exe.log

    Filesize

    408B

    MD5

    661cab77d3b907e8057f2e689e995af3

    SHA1

    5d1a0ee9c5ee7a7a90d56d00c10dc0e679bee01c

    SHA256

    8f27f95ad7c09f2e05d7960e78ef8cd935c1262e9657883a75d70dcb877592d2

    SHA512

    2523b316bd79fed0e9b3d73f46959f3dfe270cf950f34bd9d49fe4113a2ae46d0cd00224d848bc40c0d8c55449e2dccc4b4278ba4809c0ca9ede1ac75673fc67

  • C:\Users\Admin\AppData\Local\Temp\Client.exe

    Filesize

    74KB

    MD5

    38f581a49b8c5b0934119cf5452ecdee

    SHA1

    df9ecdbc834d20b0089a337faa6cffeedb13ce16

    SHA256

    c59de4c104876a3bf2c0450ad7fb3b981ad5053260d950e5eb651a930de2520f

    SHA512

    96d79cc4e4193b76f770469a0938f8e16e86163dbbc7372288f1c1a0879d8fcd618b32ac949788a06ea763ab038369d6176ccc16d71d3c00bcb8418829fea229

  • memory/2976-6-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-3-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-4-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-5-0x0000000075302000-0x0000000075303000-memory.dmp

    Filesize

    4KB

  • memory/2976-0-0x0000000075302000-0x0000000075303000-memory.dmp

    Filesize

    4KB

  • memory/2976-7-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-8-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-9-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-2-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-19-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB

  • memory/2976-1-0x0000000075300000-0x00000000758B1000-memory.dmp

    Filesize

    5.7MB