Analysis

  • max time kernel
    110s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/05/2023, 05:07

General

  • Target

    t.ps1

  • Size

    226KB

  • MD5

    2e5964cc837e99181da8fbb1a72459f4

  • SHA1

    554eccb95fd042e7b59ae59009e66c02d40bc606

  • SHA256

    bf2d33230f6da074a70938e96042a56f340d26b34511ddd254e10a0293f746b6

  • SHA512

    5f5a3b257260f752ce6b4be76df05784778bc1173f58bf540e05533ef2258fb57163089636fb8f9e46b0ab5e1677b049b8b75fa7622165d3ed2154e3230bee5c

  • SSDEEP

    1536:eeMD10HxuHY05UIy4rpmLoKZqcxU7SHzqQHw7rRim3ve0pAGFBQDVWQIypscdLNk:1k0t0iInKWQIyj37vB1rsz131513ApG

Score
10/10

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Default

C2

alertgeeks.ddnsfree.com:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Async RAT payload 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 11 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\t.ps1
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2172
    • C:\Windows\system32\schtasks.exe
      "C:\Windows\system32\schtasks.exe" /create /sc minute /mo 1 /tn log /tr C:\ProgramData\log\log.vbs
      2⤵
      • Creates scheduled task(s)
      PID:660
  • C:\Windows\System32\WScript.exe
    C:\Windows\System32\WScript.exe "C:\ProgramData\log\log.vbs"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:224
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\ProgramData\log\1.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3360
      • C:\Windows\system32\cmd.exe
        CMD /C POWERSHELL -NOP -WIND HIDDEN -eXEC BYPASS -NONI "C:\ProgramData\log\log.ps1"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4028
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          POWERSHELL -NOP -WIND HIDDEN -eXEC BYPASS -NONI "C:\ProgramData\log\log.ps1"
          4⤵
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:3500
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
            5⤵
              PID:4500
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
              5⤵
                PID:2372
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
                5⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                • Suspicious use of SetWindowsHookEx
                PID:2812
      • C:\Windows\System32\WScript.exe
        C:\Windows\System32\WScript.exe "C:\ProgramData\log\log.vbs"
        1⤵
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:5116
        • C:\Windows\system32\cmd.exe
          C:\Windows\system32\cmd.exe /c ""C:\ProgramData\log\1.bat" "
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2960
          • C:\Windows\system32\cmd.exe
            CMD /C POWERSHELL -NOP -WIND HIDDEN -eXEC BYPASS -NONI "C:\ProgramData\log\log.ps1"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:4448
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              POWERSHELL -NOP -WIND HIDDEN -eXEC BYPASS -NONI "C:\ProgramData\log\log.ps1"
              4⤵
              • Suspicious use of SetThreadContext
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2816
              • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
                "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
                5⤵
                  PID:4928

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

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              Downloads

              • C:\ProgramData\log\1.bat

                Filesize

                98B

                MD5

                1c0e3a11c13201e27ad546a96ba9b235

                SHA1

                fc8c268814b29dd7355380303ccf915c6a0a46de

                SHA256

                73de662f4a968fe1d94e3e29cfdd0a8f7e79f914cae64eca32ba55595c6b82e3

                SHA512

                cb30385e2813e75a02e99afbd1a7f1f288200140d1dc0e716facb708e21a4dd13581fa580a5b0e81b1c3080d107c10f3e44ab5891123236c7f9f3ba2aa31532a

              • C:\ProgramData\log\log.ps1

                Filesize

                225KB

                MD5

                45115fc43fe6bfb9015eecb6a682fca1

                SHA1

                35d5822da06aa21432025d74fb2b2baaa8dbffe1

                SHA256

                f501fd1cf1abab6ab840e26c5032b344ebec05c1446b160088469cbdc095303b

                SHA512

                1f4223e9480007b73c97215af1bd60a57d361a72be6f32c787c1760024c94aa4824d313391351e7bf8dcf9cbe8a0e4e9aa14a71864a08153c5584e680ca8dedc

              • C:\ProgramData\log\log.vbs

                Filesize

                120B

                MD5

                6be0eb96c776c22e099d7643281026f5

                SHA1

                0f4934d51d6b7dd2a82cfe2d574c1994fe0aa67b

                SHA256

                3e8f8fc88258f73995eaa6ce64e5093709b1386171512161e5f0ab81c9424503

                SHA512

                d0c4113016953135bd1cbb6d7504918b10e503467699bd342acd4981bccebc77a1cb054c56b82ef06847cff43da4d6266f4a281ec734e75244aeac8f510e999b

              • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

                Filesize

                3KB

                MD5

                223bd4ae02766ddc32e6145fd1a29301

                SHA1

                900cfd6526d7e33fb4039a1cc2790ea049bc2c5b

                SHA256

                1022ec2fed08ff473817fc53893e192a8e33e6a16f3d2c8cb6fd37f49c938e1e

                SHA512

                648cd3f8a89a18128d2b1bf960835e087a74cdbc783dbfcc712b3cb9e3a2e4f715e534ba2ef81d89af8f60d4882f6859373248c875ceb26ad0922e891f2e74cc

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                Filesize

                1KB

                MD5

                d096831023867930e62e6d8b3d4d8ca6

                SHA1

                404a1e73dc1590f1c8b9327c396591567dac7365

                SHA256

                167f75b42ae614a8d6b0497779ff12f09605328533487f235b029e0db03ad23b

                SHA512

                31333100ddd8e04bf730118ea800843720c0f3fb69e27b89dda7fa4d717d25e838ad55a0919d47a44dd8a78d724ef8c105cfa230987cc46ba94a2b790ff91b75

              • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

                Filesize

                1016B

                MD5

                057ccf7a1f19c38ef3f263ffd15da0c7

                SHA1

                b904c41bd154b66e9468a3317b2a7163e3c86612

                SHA256

                39b9b26264cf959750910a29c95f291af8206eb54b9ce82189c496153bd7a872

                SHA512

                56ee6c6d56d4bf3f355a748ed7ffe2374d28e51660dc31d418b79a895e6f2a5b6de47e30d15ba9f7844e6d2cdf383183e46179bfff014c1522643729c9cc1942

              • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4sowso4j.bak.ps1

                Filesize

                60B

                MD5

                d17fe0a3f47be24a6453e9ef58c94641

                SHA1

                6ab83620379fc69f80c0242105ddffd7d98d5d9d

                SHA256

                96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

                SHA512

                5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

              • memory/2172-144-0x00000259F44E0000-0x00000259F44F0000-memory.dmp

                Filesize

                64KB

              • memory/2172-152-0x00000259F44E0000-0x00000259F44F0000-memory.dmp

                Filesize

                64KB

              • memory/2172-151-0x00000259F44E0000-0x00000259F44F0000-memory.dmp

                Filesize

                64KB

              • memory/2172-150-0x00000259F44E0000-0x00000259F44F0000-memory.dmp

                Filesize

                64KB

              • memory/2172-145-0x00000259F44E0000-0x00000259F44F0000-memory.dmp

                Filesize

                64KB

              • memory/2172-138-0x00000259F71E0000-0x00000259F7202000-memory.dmp

                Filesize

                136KB

              • memory/2172-143-0x00000259F44E0000-0x00000259F44F0000-memory.dmp

                Filesize

                64KB

              • memory/2812-179-0x0000000005DE0000-0x0000000005E7C000-memory.dmp

                Filesize

                624KB

              • memory/2812-173-0x0000000000400000-0x0000000000416000-memory.dmp

                Filesize

                88KB

              • memory/2812-175-0x0000000001720000-0x0000000001730000-memory.dmp

                Filesize

                64KB

              • memory/2812-176-0x0000000006010000-0x00000000065B4000-memory.dmp

                Filesize

                5.6MB

              • memory/2812-177-0x0000000005C50000-0x0000000005CE2000-memory.dmp

                Filesize

                584KB

              • memory/2812-178-0x0000000005C30000-0x0000000005C3A000-memory.dmp

                Filesize

                40KB

              • memory/2812-180-0x0000000005F80000-0x0000000005FE6000-memory.dmp

                Filesize

                408KB

              • memory/2812-181-0x0000000001720000-0x0000000001730000-memory.dmp

                Filesize

                64KB

              • memory/2816-192-0x00000265B8B60000-0x00000265B8B70000-memory.dmp

                Filesize

                64KB

              • memory/2816-194-0x00000265B8B60000-0x00000265B8B70000-memory.dmp

                Filesize

                64KB

              • memory/2816-193-0x00000265B8B60000-0x00000265B8B70000-memory.dmp

                Filesize

                64KB

              • memory/3500-171-0x0000016979980000-0x0000016979990000-memory.dmp

                Filesize

                64KB

              • memory/3500-170-0x0000016979980000-0x0000016979990000-memory.dmp

                Filesize

                64KB

              • memory/3500-172-0x0000016979980000-0x0000016979990000-memory.dmp

                Filesize

                64KB

              • memory/4928-197-0x0000000005650000-0x0000000005660000-memory.dmp

                Filesize

                64KB