Analysis

  • max time kernel
    91s
  • max time network
    123s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    29-09-2024 15:55

General

  • Target

    Install.exe

  • Size

    954KB

  • MD5

    0252126bad05a1ea6ebe3042b1d177c2

  • SHA1

    9d98900389b76456817e149c779326a994538fae

  • SHA256

    6e25aee49ea9d544165f5d627f53cf0c6983200b2ccb5fa4497d3f32ca99c9dd

  • SHA512

    5fec36049fe76dc68ed5647142984512bbd394db2ba66dd326f6805e158e8814801bb5245cf9de46bc1cb916993813df811339ae3d3e7ed3f9f2bc98398446a5

  • SSDEEP

    24576:YU+9XNrenyktDLdYNtcdvQNC9wHAP5c1gfDrhKh:e5OVeyffXhC

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTI4OTg4NTE3MDM5MTk3Mzg5OQ.GznnVF.S0i0w8LmWps4VGMVMSSCViuDT3yKu23LSJGZ-c

  • server_id

    1289885435367002112

Signatures

  • Discord RAT

    A RAT written in C# using Discord as a C2.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

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

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 16 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\Install.exe
    "C:\Users\Admin\AppData\Local\Temp\Install.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:2660
    • C:\Users\Admin\AppData\Roaming\Microsoft\Install1.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Install1.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:420
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\D15A.tmp\D15B.tmp\D15C.bat C:\Users\Admin\AppData\Roaming\Microsoft\Install1.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3048
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -command "powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath "C:\Users\Admin\appdata""
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1148
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath C:\Users\Admin\appdata
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3292
    • C:\Users\Admin\AppData\Roaming\Microsoft\install.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\install.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4336
    • C:\Users\Admin\AppData\Roaming\Microsoft\Install2.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Install2.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:852
      • C:\Windows\system32\cmd.exe
        "C:\Windows\system32\cmd.exe" /c "C:\Users\Admin\AppData\Local\Temp\D8DB.tmp\D8EC.tmp\D8ED.bat C:\Users\Admin\AppData\Roaming\Microsoft\Install2.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3668
        • C:\Windows\system32\schtasks.exe
          schtasks /create /tn "WindowsSystem32" /tr C:\Users\Admin\AppData\Roaming\Microsoft\install.exe /sc onstart
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:4812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    627073ee3ca9676911bee35548eff2b8

    SHA1

    4c4b68c65e2cab9864b51167d710aa29ebdcff2e

    SHA256

    85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

    SHA512

    3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

    Filesize

    64B

    MD5

    1a11402783a8686e08f8fa987dd07bca

    SHA1

    580df3865059f4e2d8be10644590317336d146ce

    SHA256

    9b1d1b468932a2d88548dc18504ac3066f8248079ecb083e919460bdb88398c0

    SHA512

    5f7f9f76d9d12a25fdc5b8d193391fb42c37515c657250fe01a9bfd9fe4cc4eab9d5ec254b2596ac1b9005f12511905f19fdae41f057062261d75bd83254b510

  • C:\Users\Admin\AppData\Local\Temp\D15A.tmp\D15B.tmp\D15C.bat

    Filesize

    172B

    MD5

    8a256c0fc1a0635b2b02efcbfb61c4f5

    SHA1

    031642509b162024186142705b1f8552d733c6e1

    SHA256

    6c2d5c39c697ef3fbeea92bd708680f9c2c3539405a66d7149627b1fb710cc36

    SHA512

    ac1566dfbe52db372cfecb35d7346937e33d028c366f3ec94f55ee38580c7f3a17350447b5b6c8a1bccfab0327901325ef9f0d8d29a2071715e66cc4db854403

  • C:\Users\Admin\AppData\Local\Temp\D8DB.tmp\D8EC.tmp\D8ED.bat

    Filesize

    128B

    MD5

    dc8f854187f22ffa2fb1b7233fe05c78

    SHA1

    1ac680c09fb40f005fd6f2bc5320bdf910cbbe35

    SHA256

    47134ba4d814e10b64f123bd4e4bb6807e41f72a214c25e657f492db4f673cc1

    SHA512

    3b8348bad8d1ef8421bad057bb2542241f1af79d4eba12a6c26bfccf7fa7f438543859629c8c946bb88146fe7396350ad5b15c2493577a609086c536f1779d3d

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bhebngir.kyz.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Microsoft\Install1.exe

    Filesize

    119KB

    MD5

    4e363799831f973a254e3e9cfe102bbd

    SHA1

    6c78fa37bf90554a78c651837f12121d326478c1

    SHA256

    f544b2bcffd9ea359e84d54b405ea99dd5568cfd476095e20ba10fbf70a1c3cb

    SHA512

    66196dc49d3ddd27b585273a441fafaa583f2d146019ffc5480f12acd7116450185c744668fd7b3b0b301063a938cd8d9b5798417a716c3b58f96bf0a867b3b0

  • C:\Users\Admin\AppData\Roaming\Microsoft\Install2.exe

    Filesize

    119KB

    MD5

    374eac988a97adaa4c63c241c532be72

    SHA1

    8acb363196482e366aac360f683c9c23e85b3b81

    SHA256

    6b13045a1f24ea7b11e569c9f9b1684ee8f86b130522839147dc0b52c727d12b

    SHA512

    6161548d45ea7aee5618434eb1199ee64a3323c04bb0e477cb824deb454123061714821b65bf5c9c2cce7a029ccb3e5b553298eef0874708f053f3676bfea0b4

  • C:\Users\Admin\AppData\Roaming\Microsoft\install.exe

    Filesize

    78KB

    MD5

    62e531fc823331011e05a0e0139a8260

    SHA1

    159a6ac300d1e8fd8a86e1f51c4fa31fd515d29a

    SHA256

    e065ddbc2eb6c25079010487d32e517bbeb6caf00c8bfff2b6eee23cbccf1574

    SHA512

    0d45d3a6d4fd8bd5de0a7a740ab97a720a2e0fbcc153bdaa296596d438dfed70f803d21786c9e654c04718a2d1164ecf4594498086ff1f5beac9dfbb9ee47394

  • memory/1148-17-0x0000017D5E740000-0x0000017D5E762000-memory.dmp

    Filesize

    136KB

  • memory/4336-43-0x00000270EEDB0000-0x00000270EEDC8000-memory.dmp

    Filesize

    96KB

  • memory/4336-44-0x00000270F14D0000-0x00000270F1692000-memory.dmp

    Filesize

    1.8MB

  • memory/4336-45-0x00000270F29A0000-0x00000270F2EC8000-memory.dmp

    Filesize

    5.2MB