Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/04/2024, 14:26

General

  • Target

    d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe

  • Size

    725KB

  • MD5

    5db47cc0eb5dae97ad8ea7d3ccbf3f8c

  • SHA1

    444f8028c412c7661c3204e82da703ffdc607291

  • SHA256

    d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4

  • SHA512

    ab5ae0c399fb4b475d85cf0c07d7c2d4aeae7ac7c2b53b8c6b26afc3eb007dfe3fdde03e695a78f0f8d1dd6648c7378d5f5063732b74bbe0d2579040a59d76d2

  • SSDEEP

    12288:d3IU8S6eUd/rqMtJwy8cpe/8pg3P20aweKkKfncC8AHLG0JlB99e78:FItSAdzltJwKpyuokK/cC8o9Bl

Malware Config

Signatures

  • Contains code to disable Windows Defender 1 IoCs

    A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.

  • Detect ZGRat V1 1 IoCs
  • Modifies Windows Defender Real-time Protection settings 3 TTPs 9 IoCs
  • Modifies security service 2 TTPs 4 IoCs
  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 1 IoCs
  • UAC bypass 3 TTPs 6 IoCs
  • Windows security bypass 2 TTPs 2 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Executes dropped EXE 3 IoCs
  • Windows security modification 2 TTPs 7 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs
  • System policy modification 1 TTPs 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe
    "C:\Users\Admin\AppData\Local\Temp\d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:668
    • C:\Users\Admin\AppData\Local\Temp\d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe
      "C:\Users\Admin\AppData\Local\Temp\d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe"
      2⤵
      • Modifies Windows Defender Real-time Protection settings
      • Modifies security service
      • UAC bypass
      • Windows security bypass
      • Windows security modification
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:1292
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /create /tn "\Microsoft\Windows\System\Pev44\Files\IlemetryLogtek" /SC MINUTE /MO 3 /RL HIGHEST /tr "C:\Users\Admin\AppData\Local\Temp\d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe" /f
        3⤵
        • Creates scheduled task(s)
        PID:3516
      • C:\Windows\SysWOW64\schtasks.exe
        "schtasks" /delete /tn "IlemetryLogtek" /f
        3⤵
          PID:4608
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "powershell" Get-MpPreference -verbose
          3⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2896
        • C:\Users\Admin\AppData\Roaming\Gres\Verek.exe
          "C:\Users\Admin\AppData\Roaming\Gres\Verek.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4468
          • C:\Users\Admin\AppData\Roaming\Gres\Verek.exe
            "C:\Users\Admin\AppData\Roaming\Gres\Verek.exe"
            4⤵
            • Executes dropped EXE
            PID:4972
          • C:\Users\Admin\AppData\Roaming\Gres\Verek.exe
            "C:\Users\Admin\AppData\Roaming\Gres\Verek.exe"
            4⤵
            • Modifies Windows Defender Real-time Protection settings
            • Modifies security service
            • UAC bypass
            • Windows security bypass
            • Executes dropped EXE
            • Windows security modification
            • Adds Run key to start application
            • Checks whether UAC is enabled
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            • System policy modification
            PID:3012
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /create /tn "\Microsoft\Windows\System\Pev44\Files\IlemetryLogtek" /SC MINUTE /MO 3 /RL HIGHEST /tr "C:\Users\Admin\AppData\Roaming\Gres\Verek.exe" /f
              5⤵
              • Creates scheduled task(s)
              PID:4620
            • C:\Windows\SysWOW64\schtasks.exe
              "schtasks" /delete /tn "IlemetryLogtek" /f
              5⤵
                PID:2560
              • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
                "powershell" Get-MpPreference -verbose
                5⤵
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of AdjustPrivilegeToken
                PID:2256

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4.exe.log

              Filesize

              1KB

              MD5

              8ec831f3e3a3f77e4a7b9cd32b48384c

              SHA1

              d83f09fd87c5bd86e045873c231c14836e76a05c

              SHA256

              7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

              SHA512

              26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

              Filesize

              2KB

              MD5

              968cb9309758126772781b83adb8a28f

              SHA1

              8da30e71accf186b2ba11da1797cf67f8f78b47c

              SHA256

              92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

              SHA512

              4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

              Filesize

              18KB

              MD5

              0a142ce808e25ad2fee503b6f215ede8

              SHA1

              97d6e56faa2d03452a85e23a1bfbf5798b149b4f

              SHA256

              f96b0fb07db40d9e9847985365aef5f068c742d4408947f2784463ff34996800

              SHA512

              f7b62df3e1e45aa98f7a48f8cf93b64ae5fd2c780591d85dee74b3240fb7ac0d3f6b5cbe347f6f0cd6793594000b4f7e2b54dc8667dc61e6173fc870642f2409

            • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_up0l3lol.xe4.ps1

              Filesize

              60B

              MD5

              d17fe0a3f47be24a6453e9ef58c94641

              SHA1

              6ab83620379fc69f80c0242105ddffd7d98d5d9d

              SHA256

              96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

              SHA512

              5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

            • C:\Users\Admin\AppData\Roaming\Gres\Verek.exe

              Filesize

              725KB

              MD5

              5db47cc0eb5dae97ad8ea7d3ccbf3f8c

              SHA1

              444f8028c412c7661c3204e82da703ffdc607291

              SHA256

              d5a637dbba35358ada6021003d135a7ebfaa36f4de9646635bfdfc35d9077af4

              SHA512

              ab5ae0c399fb4b475d85cf0c07d7c2d4aeae7ac7c2b53b8c6b26afc3eb007dfe3fdde03e695a78f0f8d1dd6648c7378d5f5063732b74bbe0d2579040a59d76d2

            • C:\Users\Admin\AppData\Roaming\Gres\settings.xml

              Filesize

              64B

              MD5

              cf4d033219f987c0a057da5f64d74fae

              SHA1

              a5605c0ea0193022cd71190e2dc794381f416d94

              SHA256

              127a80bd33231ee856a83eddfeaabb22a202a369fe429c8ff5430038fd132876

              SHA512

              601cf72b779711e420ae0e0292bd3834e8ccc34661f930db5cdc94a2d788147404447cc4ead19a5c74a930fd3a11a415dabe882b0033d167546f395f59383008

            • memory/668-6-0x0000000005110000-0x0000000005128000-memory.dmp

              Filesize

              96KB

            • memory/668-5-0x0000000004F70000-0x0000000004F80000-memory.dmp

              Filesize

              64KB

            • memory/668-8-0x0000000005FE0000-0x0000000005FEA000-memory.dmp

              Filesize

              40KB

            • memory/668-9-0x0000000002670000-0x0000000002704000-memory.dmp

              Filesize

              592KB

            • memory/668-10-0x0000000007610000-0x00000000076AC000-memory.dmp

              Filesize

              624KB

            • memory/668-1-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/668-2-0x0000000005430000-0x00000000059D4000-memory.dmp

              Filesize

              5.6MB

            • memory/668-14-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/668-3-0x0000000004D30000-0x0000000004DC2000-memory.dmp

              Filesize

              584KB

            • memory/668-7-0x0000000005420000-0x0000000005428000-memory.dmp

              Filesize

              32KB

            • memory/668-0-0x0000000000270000-0x000000000032C000-memory.dmp

              Filesize

              752KB

            • memory/668-4-0x0000000004D20000-0x0000000004D2A000-memory.dmp

              Filesize

              40KB

            • memory/1292-21-0x0000000006450000-0x00000000064B6000-memory.dmp

              Filesize

              408KB

            • memory/1292-79-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/1292-23-0x0000000006790000-0x00000000067CC000-memory.dmp

              Filesize

              240KB

            • memory/1292-22-0x0000000006730000-0x0000000006742000-memory.dmp

              Filesize

              72KB

            • memory/1292-15-0x00000000050B0000-0x00000000050C0000-memory.dmp

              Filesize

              64KB

            • memory/1292-13-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/1292-11-0x0000000000400000-0x000000000045C000-memory.dmp

              Filesize

              368KB

            • memory/2256-126-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/2256-109-0x000000007F980000-0x000000007F990000-memory.dmp

              Filesize

              64KB

            • memory/2256-108-0x0000000006BC0000-0x0000000006C0C000-memory.dmp

              Filesize

              304KB

            • memory/2256-120-0x00000000078B0000-0x0000000007953000-memory.dmp

              Filesize

              652KB

            • memory/2256-106-0x0000000006220000-0x0000000006574000-memory.dmp

              Filesize

              3.3MB

            • memory/2256-96-0x0000000005230000-0x0000000005240000-memory.dmp

              Filesize

              64KB

            • memory/2256-95-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/2256-121-0x0000000005230000-0x0000000005240000-memory.dmp

              Filesize

              64KB

            • memory/2256-110-0x0000000070580000-0x00000000705CC000-memory.dmp

              Filesize

              304KB

            • memory/2256-122-0x0000000005230000-0x0000000005240000-memory.dmp

              Filesize

              64KB

            • memory/2256-123-0x0000000007B70000-0x0000000007B81000-memory.dmp

              Filesize

              68KB

            • memory/2256-124-0x0000000007BB0000-0x0000000007BC4000-memory.dmp

              Filesize

              80KB

            • memory/2896-56-0x00000000027F0000-0x0000000002800000-memory.dmp

              Filesize

              64KB

            • memory/2896-57-0x0000000006750000-0x000000000676E000-memory.dmp

              Filesize

              120KB

            • memory/2896-63-0x00000000076D0000-0x0000000007766000-memory.dmp

              Filesize

              600KB

            • memory/2896-64-0x0000000007650000-0x0000000007661000-memory.dmp

              Filesize

              68KB

            • memory/2896-65-0x0000000007680000-0x000000000768E000-memory.dmp

              Filesize

              56KB

            • memory/2896-66-0x0000000007690000-0x00000000076A4000-memory.dmp

              Filesize

              80KB

            • memory/2896-67-0x0000000007790000-0x00000000077AA000-memory.dmp

              Filesize

              104KB

            • memory/2896-68-0x0000000007770000-0x0000000007778000-memory.dmp

              Filesize

              32KB

            • memory/2896-71-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/2896-61-0x0000000007450000-0x000000000746A000-memory.dmp

              Filesize

              104KB

            • memory/2896-25-0x0000000002830000-0x0000000002866000-memory.dmp

              Filesize

              216KB

            • memory/2896-60-0x0000000007A90000-0x000000000810A000-memory.dmp

              Filesize

              6.5MB

            • memory/2896-59-0x0000000007340000-0x00000000073E3000-memory.dmp

              Filesize

              652KB

            • memory/2896-27-0x0000000005380000-0x00000000059A8000-memory.dmp

              Filesize

              6.2MB

            • memory/2896-28-0x00000000027F0000-0x0000000002800000-memory.dmp

              Filesize

              64KB

            • memory/2896-26-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/2896-29-0x00000000027F0000-0x0000000002800000-memory.dmp

              Filesize

              64KB

            • memory/2896-62-0x00000000074C0000-0x00000000074CA000-memory.dmp

              Filesize

              40KB

            • memory/2896-58-0x00000000027F0000-0x0000000002800000-memory.dmp

              Filesize

              64KB

            • memory/2896-46-0x0000000070550000-0x000000007059C000-memory.dmp

              Filesize

              304KB

            • memory/2896-45-0x00000000066D0000-0x0000000006702000-memory.dmp

              Filesize

              200KB

            • memory/2896-44-0x000000007FA20000-0x000000007FA30000-memory.dmp

              Filesize

              64KB

            • memory/2896-43-0x0000000006160000-0x00000000061AC000-memory.dmp

              Filesize

              304KB

            • memory/2896-42-0x0000000006130000-0x000000000614E000-memory.dmp

              Filesize

              120KB

            • memory/2896-41-0x0000000005B90000-0x0000000005EE4000-memory.dmp

              Filesize

              3.3MB

            • memory/2896-31-0x0000000005300000-0x0000000005366000-memory.dmp

              Filesize

              408KB

            • memory/2896-30-0x0000000005160000-0x0000000005182000-memory.dmp

              Filesize

              136KB

            • memory/3012-88-0x0000000002B50000-0x0000000002B60000-memory.dmp

              Filesize

              64KB

            • memory/3012-87-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/3012-128-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/3012-129-0x0000000002B50000-0x0000000002B60000-memory.dmp

              Filesize

              64KB

            • memory/4468-86-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB

            • memory/4468-80-0x0000000005110000-0x0000000005120000-memory.dmp

              Filesize

              64KB

            • memory/4468-78-0x0000000075160000-0x0000000075910000-memory.dmp

              Filesize

              7.7MB