Analysis

  • max time kernel
    95s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/06/2024, 01:02

General

  • Target
    a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168.exe
  • Size 2.1MB
  • Sample240604-bd4hzaff5z
  • SHA256 a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 6 IoCs
  • Process spawned unexpected child process 18 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Detects executables packed with unregistered version of .NET Reactor 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 12 IoCs
  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 18 IoCs

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

  • Modifies registry class 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 32 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:\Users\Admin\AppData\Local\Temp\a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168.exe
    "C:\Users\Admin\AppData\Local\Temp\a2f115298e7e2a6641f1af6447139aae7a272396e05255cf3f46aad126095168.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2448
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\Discord\9tSGBPS8pWt1OE8agSDDS3cSF0YOLizU75DcXK0Ue9E3Zn.vbe"
      2⤵
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:4504
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\Discord\gLyE3U6eAnmR1VUbYVGQU6SNbmGDptj5w0rMd8Qkc1gQF.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2812
        • C:\Users\Admin\AppData\Roaming\Discord\Updater.exe
          "C:\Users\Admin\AppData\Roaming\Discord/Updater.exe"
          4⤵
          • Modifies WinLogon for persistence
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Program Files directory
          • Modifies registry class
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4472
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\dqkpqdhg\dqkpqdhg.cmdline"
            5⤵
            • Drops file in System32 directory
            • Suspicious use of WriteProcessMemory
            PID:2040
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES4585.tmp" "c:\Windows\System32\CSC2EF46D68DFD4D269DD4F7CA29B33174.TMP"
              6⤵
                PID:1688
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Google\RuntimeBroker.exe'
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of AdjustPrivilegeToken
              PID:680
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Defender\de-DE\fontdrvhost.exe'
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of AdjustPrivilegeToken
              PID:1236
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Multimedia Platform\TextInputHost.exe'
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:5028
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\services.exe'
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of AdjustPrivilegeToken
              PID:3000
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Portable Devices\RuntimeBroker.exe'
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious use of AdjustPrivilegeToken
              PID:2220
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Discord\Updater.exe'
              5⤵
              • Command and Scripting Interpreter: PowerShell
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:2432
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\IZdub348jc.bat"
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1064
              • C:\Windows\system32\chcp.com
                chcp 65001
                6⤵
                  PID:3200
                • C:\Windows\system32\PING.EXE
                  ping -n 10 localhost
                  6⤵
                  • Runs ping.exe
                  PID:4284
                • C:\Program Files (x86)\Windows Defender\de-DE\fontdrvhost.exe
                  "C:\Program Files (x86)\Windows Defender\de-DE\fontdrvhost.exe"
                  6⤵
                  • Executes dropped EXE
                  • Suspicious behavior: GetForegroundWindowSpam
                  • Suspicious use of AdjustPrivilegeToken
                  PID:1076
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 12 /tr "'C:\Program Files (x86)\Google\RuntimeBroker.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4164
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files (x86)\Google\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3980
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Google\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2392
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Defender\de-DE\fontdrvhost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3380
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\de-DE\fontdrvhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3616
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 7 /tr "'C:\Program Files (x86)\Windows Defender\de-DE\fontdrvhost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2064
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\TextInputHost.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3460
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\TextInputHost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4348
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\TextInputHost.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4984
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "servicess" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\services.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:3288
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Users\Admin\services.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:1604
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "servicess" /sc MINUTE /mo 11 /tr "'C:\Users\Admin\services.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:1568
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows Portable Devices\RuntimeBroker.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:1560
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4324
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Portable Devices\RuntimeBroker.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:5036
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "UpdaterU" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\AppData\Roaming\Discord\Updater.exe'" /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2868
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "Updater" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Roaming\Discord\Updater.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:2608
      • C:\Windows\system32\schtasks.exe
        schtasks.exe /create /tn "UpdaterU" /sc MINUTE /mo 8 /tr "'C:\Users\Admin\AppData\Roaming\Discord\Updater.exe'" /rl HIGHEST /f
        1⤵
        • Process spawned unexpected child process
        • Creates scheduled task(s)
        PID:4996

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            powershell.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
            • Size 2KB
            • SHA256 c4c53abb13e99475aebfbe9fec7a8fead81c14c80d9dcc2b81375304f3a683fe
            • MD5 SHA1 SHA512

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 944B
            • SHA256 f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb
            • MD5 SHA1 SHA512

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 944B
            • SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
            • MD5 SHA1 SHA512

            StartupProfileData-NonInteractive

            • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
            • Size 944B
            • SHA256 95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010
            • MD5 SHA1 SHA512

            IZdub348jc.bat

            • Path C:\Users\Admin\AppData\Local\Temp\IZdub348jc.bat
            • Size 189B
            • SHA256 ecc408873b60a28c6e7d030bb0e67e3b3eb18f06c2a57a7eed11dd36aa84832a
            • MD5 SHA1 SHA512

            RES4585.tmp

            • Path C:\Users\Admin\AppData\Local\Temp\RES4585.tmp
            • Size 1KB
            • SHA256 301d394afdeb269aff083572507691692d4cd851c4da11fb3f9583287d5e3dfb
            • MD5 SHA1 SHA512

            __PSScriptPolicyTest_2oecja3t.y2h.ps1

            • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2oecja3t.y2h.ps1
            • Size 60B
            • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
            • MD5 SHA1 SHA512

            9tSGBPS8pWt1OE8agSDDS3cSF0YOLizU75DcXK0Ue9E3Zn.vbe

            • Path C:\Users\Admin\AppData\Roaming\Discord\9tSGBPS8pWt1OE8agSDDS3cSF0YOLizU75DcXK0Ue9E3Zn.vbe
            • Size 237B
            • SHA256 da6753778123b5e236261193f3c2ead026f6d1ea90798340e5c1014cc7de393e
            • MD5 SHA1 SHA512

            Updater.exe

            • Path C:\Users\Admin\AppData\Roaming\Discord\Updater.exe
            • Size 1.8MB
            • SHA256 02f925d7e27fd7660e781f8ea1ca09d52ce6e1f6d8abe6b3c6e120fbb1b5faa3
            • MD5 SHA1 SHA512 SSDEEP

            gLyE3U6eAnmR1VUbYVGQU6SNbmGDptj5w0rMd8Qkc1gQF.bat

            • Path C:\Users\Admin\AppData\Roaming\Discord\gLyE3U6eAnmR1VUbYVGQU6SNbmGDptj5w0rMd8Qkc1gQF.bat
            • Size 96B
            • SHA256 c9dabf9ea5db5c85219b896ca6045613ec95b64374f2dc0d132da1be1aa67915
            • MD5 SHA1 SHA512

            dqkpqdhg.0.cs

            • Path \??\c:\Users\Admin\AppData\Local\Temp\dqkpqdhg\dqkpqdhg.0.cs
            • Size 379B
            • SHA256 90af302450d1da61f797003653929d9c8af1987c0b97444461ca6777a5e82026
            • MD5 SHA1 SHA512

            dqkpqdhg.cmdline

            • Path \??\c:\Users\Admin\AppData\Local\Temp\dqkpqdhg\dqkpqdhg.cmdline
            • Size 235B
            • SHA256 5e1fd46c86294eae7aa7f3ad46f8e1af2b5471e4caa1c1af63dda1bc2762e486
            • MD5 SHA1 SHA512

            CSC2EF46D68DFD4D269DD4F7CA29B33174.TMP

            • Path \??\c:\Windows\System32\CSC2EF46D68DFD4D269DD4F7CA29B33174.TMP
            • Size 1KB
            • SHA256 31740b218505867f934d13c16295f7c1a57045d8e4c0079799b9caa067b2411c
            • MD5 SHA1 SHA512

            memory/2432-59-0x000001B615BA0000-0x000001B615BC2000-memory.dmp

            memory/4472-22-0x0000000002D60000-0x0000000002D6C000-memory.dmp

            memory/4472-20-0x000000001B840000-0x000000001B858000-memory.dmp

            memory/4472-18-0x000000001BBE0000-0x000000001BC30000-memory.dmp

            memory/4472-17-0x000000001B820000-0x000000001B83C000-memory.dmp

            memory/4472-15-0x0000000002D50000-0x0000000002D5E000-memory.dmp

            memory/4472-13-0x00000000009F0000-0x0000000000BCA000-memory.dmp

            memory/4472-12-0x00007FFB46B53000-0x00007FFB46B55000-memory.dmp