Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-01-2025 04:08

General

  • Target

    c1378ff7aaacea446762f5878ec501260bcdeb869e06a8f0a25845845183395cN.exe

  • Size

    159KB

  • MD5

    f3b25838fa8d402f6c93ddd23979b810

  • SHA1

    3935445639b0373ff59c5406315a480678e80f9e

  • SHA256

    c1378ff7aaacea446762f5878ec501260bcdeb869e06a8f0a25845845183395c

  • SHA512

    a66f7dbb3726a6fd116f6cb9229fb9f06879bdf9e5a550bd64582fded71d9d9433fbf71b754f598f550436badfdae62a6d6ff7e1ac91c41c203162280c583715

  • SSDEEP

    3072:0325N7aVopufIeZuVGoFkfAylFYOKYoGCllFhdoH3hZ9Roe2eX9px:j1U8peZuVDRkClAXhT2eF9

Malware Config

Extracted

Family

xworm

C2

indian-tall.gl.at.ply.gg:65520

Attributes
  • Install_directory

    %AppData%

  • install_file

    keyauth.exe

Signatures

  • Detect Xworm Payload 4 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 8 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.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 4 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 33 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.

  • Obfuscated Files or Information: Command Obfuscation 1 TTPs

    Adversaries may obfuscate content during command execution to impede detection.

  • Enumerates physical storage devices 1 TTPs

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

  • 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 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 14 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 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\c1378ff7aaacea446762f5878ec501260bcdeb869e06a8f0a25845845183395cN.exe
    "C:\Users\Admin\AppData\Local\Temp\c1378ff7aaacea446762f5878ec501260bcdeb869e06a8f0a25845845183395cN.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3672
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHkAcgB0ACMAPgBBAGQAZAAtAFQAeQBwAGUAIAAtAEEAcwBzAGUAbQBiAGwAeQBOAGEAbQBlACAAUwB5AHMAdABlAG0ALgBXAGkAbgBkAG8AdwBzAC4ARgBvAHIAbQBzADsAPAAjAHcAeAB5ACMAPgBbAFMAeQBzAHQAZQBtAC4AVwBpAG4AZABvAHcAcwAuAEYAbwByAG0AcwAuAE0AZQBzAHMAYQBnAGUAQgBvAHgAXQA6ADoAUwBoAG8AdwAoACcARQByAHIAbwByAF8AYwBvAGQAZQBfADAAeAAxACcALAAnACcALAAnAE8ASwAnACwAJwBFAHIAcgBvAHIAJwApADwAIwB2AHcAZwAjAD4A"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3320
    • C:\Users\Admin\AppData\Local\Temp\XwormLoader.exe
      "C:\Users\Admin\AppData\Local\Temp\XwormLoader.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3480
      • 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\XwormLoader.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3296
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XwormLoader.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4224
      • 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\XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:180
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1592
    • C:\Users\Admin\AppData\Local\Temp\xclient.exe
      "C:\Users\Admin\AppData\Local\Temp\xclient.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:3956
      • 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\xclient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2508
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'xclient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2404
      • 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\keyauth.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4888
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'keyauth.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2964
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "keyauth" /tr "C:\Users\Admin\AppData\Roaming\keyauth.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2464
  • C:\Users\Admin\AppData\Roaming\keyauth.exe
    C:\Users\Admin\AppData\Roaming\keyauth.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:3564
  • C:\Users\Admin\AppData\Roaming\keyauth.exe
    C:\Users\Admin\AppData\Roaming\keyauth.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4732

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\keyauth.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

    47605a4dda32c9dff09a9ca441417339

    SHA1

    4f68c895c35b0dc36257fc8251e70b968c560b62

    SHA256

    e6254c2bc9846a76a4567ab91b6eae76e937307ff9301b65d577ffe6e15fe40a

    SHA512

    b6823b6e794a2fe3e4c4ecfb3f0d61a54821de7feb4f9e3e7fd463e7fbb5e6848f59865b487dafebeac431e4f4db81ef56836d94cac67da39852c566ed34a885

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

    Filesize

    1KB

    MD5

    92830f483efdb710c3e2312b0595cf21

    SHA1

    9dd6a57c28a72484911f95a01295ca7b8326bcd5

    SHA256

    07ca16ed87d5f40c6a8619451af7103d40202036742a86281577c508ced7c1c8

    SHA512

    9d5e1f2798b21cf7116c0477117f1b9558f298a8f61a9e5bd8460cc063816b43b72e47a09ef3cfb4766afd65f078606b754e1a4485cbc0361f0f555e979c5e80

  • 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

    22310ad6749d8cc38284aa616efcd100

    SHA1

    440ef4a0a53bfa7c83fe84326a1dff4326dcb515

    SHA256

    55b1d8021c4eb4c3c0d75e3ed7a4eb30cd0123e3d69f32eeb596fe4ffec05abf

    SHA512

    2ef08e2ee15bb86695fe0c10533014ffed76ececc6e579d299d3365fafb7627f53e32e600bb6d872b9f58aca94f8cb7e1e94cdfd14777527f7f0aa019d9c6def

  • C:\Users\Admin\AppData\Local\Temp\XwormLoader.exe

    Filesize

    77KB

    MD5

    e7525a2d46d78f6ea17a3c32815cc1a2

    SHA1

    734b924697ddfd032ae0f2467b404b91650d72f3

    SHA256

    c388c156025273419447629bfb28728b32c785a47968c7bce227adb31a66ffa3

    SHA512

    cb38565d63a429517493a5093ab93861744b4584594221c7fb558e9f5832b3feaf3f52f902079f7e7299ce2008fa03cb1ff59118469ce6461d9319ae2d5b2d34

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2jat3vd2.hhg.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\xclient.exe

    Filesize

    74KB

    MD5

    8f0fab5837f63b48e3d0bf98013ecde6

    SHA1

    03e392b90a808f77595f571dd01c8ce864e87d2c

    SHA256

    703c26b59e5eefc02cc93db1f440a7ed273cdb8928f082105f41120adc41964d

    SHA512

    d980674a3343c51c77b8a05b264e2c01a38f8e4ffa300763dbb2ff11e66dcce0555437e5b4ced5a6fffd0793577c9c816403987b5affccf1639bbf1338f7884d

  • memory/3320-31-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3320-30-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3320-41-0x0000020F0D500000-0x0000020F0D522000-memory.dmp

    Filesize

    136KB

  • memory/3320-42-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3320-137-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3480-27-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3480-25-0x0000000000D20000-0x0000000000D3A000-memory.dmp

    Filesize

    104KB

  • memory/3480-138-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3672-0-0x00007FFAC29D3000-0x00007FFAC29D5000-memory.dmp

    Filesize

    8KB

  • memory/3672-28-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3672-4-0x00007FFAC29D0000-0x00007FFAC3491000-memory.dmp

    Filesize

    10.8MB

  • memory/3672-1-0x00000000003A0000-0x00000000003CE000-memory.dmp

    Filesize

    184KB

  • memory/3956-29-0x0000000000E40000-0x0000000000E58000-memory.dmp

    Filesize

    96KB