Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07-11-2024 03:33

General

  • Target

    f7f52f6bbffa02fffcea30d5806050b7702a9a78dcbeae83e28c45d81aa1c4c4.exe

  • Size

    85.1MB

  • MD5

    8310bdf3ac82001830f75c15fba8cc15

  • SHA1

    581d729268cbd245d091633cc19692c4b5bfa0af

  • SHA256

    f7f52f6bbffa02fffcea30d5806050b7702a9a78dcbeae83e28c45d81aa1c4c4

  • SHA512

    ceab56619fa83baddcc3af7b781ce144ec53db919a6a80079b51e874d495e78349dc6882dad3f815c95274d8caca514765f34086f0b7acb8d42c616ca1714bf0

  • SSDEEP

    49152:kDSdqvdbLqSewjI63pCESb+7sQuJwomAiyHwjfUZo+JP0D73BB681fhojkIG1l0D:

Malware Config

Extracted

Family

xworm

C2

45.145.41.178:1111

Attributes
  • Install_directory

    %AppData%

  • install_file

    Windows Defender Notification.exe

Signatures

  • Detect Xworm Payload 2 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 4 IoCs
  • Executes dropped EXE 6 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

  • System Time Discovery 1 TTPs 1 IoCs

    Adversary may gather the system time and/or time zone settings from a local or remote system.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 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\f7f52f6bbffa02fffcea30d5806050b7702a9a78dcbeae83e28c45d81aa1c4c4.exe
    "C:\Users\Admin\AppData\Local\Temp\f7f52f6bbffa02fffcea30d5806050b7702a9a78dcbeae83e28c45d81aa1c4c4.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4352
    • C:\Users\Admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe
      "C:\Users\Admin\AppData\Local\Temp\Windows Defender Real Time Protection.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:3976
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe" "Windows Defender Real Time Protection.exe" ENABLE
        3⤵
        • Modifies Windows Firewall
        • Event Triggered Execution: Netsh Helper DLL
        • System Location Discovery: System Language Discovery
        • System Time Discovery
        PID:1140
    • C:\Users\Admin\AppData\Local\Temp\CraxsRat.exe
      "C:\Users\Admin\AppData\Local\Temp\CraxsRat.exe"
      2⤵
      • Executes dropped EXE
      PID:4540
    • C:\Users\Admin\AppData\Local\Temp\Windows Defender Notification.exe
      "C:\Users\Admin\AppData\Local\Temp\Windows Defender Notification.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:60
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Windows Defender Notification.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4556
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender Notification.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3760
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4108
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender Notification.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1692
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender Notification" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4172
  • C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3408
  • C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:804
  • C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe
    "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2924

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Windows Defender Notification.exe.log

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    77d622bb1a5b250869a3238b9bc1402b

    SHA1

    d47f4003c2554b9dfc4c16f22460b331886b191b

    SHA256

    f97ff12a8abf4bf88bb6497bd2ac2da12628c8847a8ba5a9026bdbb76507cdfb

    SHA512

    d6789b5499f23c9035375a102271e17a8a82e57d6f5312fa24242e08a83efdeb8becb7622f55c4cf1b89c7d864b445df11f4d994cf7e2f87a900535bcca12fd9

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

    Filesize

    944B

    MD5

    2369bbb2c26bb259a7cb3d872be81aaf

    SHA1

    31f19466344ad63e22da94aa37c9f2d6866fd653

    SHA256

    59bf4e18373186725669d90c11001949b0d639b1cb35b41593d986de75d7998f

    SHA512

    c6a68d947dd81797567b1a4e09e0b135352e6282e6e3328114aaa508282defe4b63b1527ae219db931321ae18bcc1755cf9adaec51ed633cf4441cee59ec340b

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

    Filesize

    944B

    MD5

    22310ad6749d8cc38284aa616efcd100

    SHA1

    440ef4a0a53bfa7c83fe84326a1dff4326dcb515

    SHA256

    55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

    SHA512

    2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

  • C:\Users\Admin\AppData\Local\Temp\Windows Defender Notification.exe

    Filesize

    75KB

    MD5

    8d6e86e6e799c75bd5123534bdbf411b

    SHA1

    9fc526e97077ed2a5e78371fdab5ab7ecf789368

    SHA256

    7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888

    SHA512

    8cd6e706c3f36d7cb1d6eed3717fd3e96863b6fcf4ee3425f7b08823b8dc364a1de215b578310a3d1fddd98f9eb648ddeafd85d8a2feed399d46fba7dba09265

  • C:\Users\Admin\AppData\Local\Temp\Windows Defender Real Time Protection.exe

    Filesize

    32KB

    MD5

    fc15fb0cec248ea16a6eda92ab97b1f8

    SHA1

    01af6a8e81a92487ed29b9706ef8c86957666a45

    SHA256

    73e71dc70f6daeebd9a257d0b0c6e67e87c6d50b27eb94af08d15f1afb6ed02c

    SHA512

    525dbba870aeeb38edf40a31ab36230f11b481a63e14b441dc314f40da310d936dcac1b46f05aa93bbcf511acf1375aaaea5aa0438b399ba24812bddec93d730

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rpxr03we.yvd.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/60-38-0x0000000000D80000-0x0000000000D9A000-memory.dmp

    Filesize

    104KB

  • memory/3976-12-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/3976-11-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/3976-87-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/4352-37-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/4352-0-0x0000000074D82000-0x0000000074D83000-memory.dmp

    Filesize

    4KB

  • memory/4352-2-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/4352-1-0x0000000074D80000-0x0000000075331000-memory.dmp

    Filesize

    5.7MB

  • memory/4540-39-0x000001CABAA90000-0x000001CABEA40000-memory.dmp

    Filesize

    63.7MB

  • memory/4540-27-0x00007FFA3BE43000-0x00007FFA3BE45000-memory.dmp

    Filesize

    8KB

  • memory/4556-45-0x0000023956D30000-0x0000023956D52000-memory.dmp

    Filesize

    136KB