Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-05-2024 09:44

General

  • Target

    e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe

  • Size

    494KB

  • MD5

    0f2eaea796ec4d932ac2d94c61f6b60d

  • SHA1

    bd5f3e5043afebcc1c08e763ab8afc0183f5b7f7

  • SHA256

    e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51

  • SHA512

    addee2ef8b337d2241da0a4fd02e378365e5bb998b1e7603821a91723cc0a4d7c3dee99ba2f016df227d2a5c84ef1939aa4a72dbfc595b788195cdc2025bf69c

  • SSDEEP

    6144:w9BrlrV1JwKcZKGq1uNYCa8Z5gG02jjQFv5jeARhB7KW4x86H+wXCprgT5pbV+f:wbBPJwKcIfoKChzPuj7D+xUprgTn8

Malware Config

Extracted

Family

xworm

C2

104.250.180.178:7061

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • 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.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe
    "C:\Users\Admin\AppData\Local\Temp\e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3496
    • C:\Users\Admin\AppData\Local\Temp\e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe
      "C:\Users\Admin\AppData\Local\Temp\e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:776
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3060
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2260
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3468
      • C:\Windows\SysWOW64\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:228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\e879f3a1cc7733303f6edebd710066dd418d78dbbc1a1393b50d4fc3d1d74b51.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

    a338dd42f9ab64216c77e98d406ca49b

    SHA1

    b52391c6177ec06a1803d15d96b78c13136c1783

    SHA256

    a6fab4eb5e43df6e7468766942c27ff88126342627c74d9289c8c6ed0afc02a3

    SHA512

    8ba1efb0c3c4bd23165708b68a7fdeaa9e159fd955d93f864436f0073ecd37cf7d1777309f8d0c0e5be6fc3d78ae2902da05b26b1c1dd44c49ea2398ccb9950d

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

    Filesize

    18KB

    MD5

    2749e4232324a093e736a0fad688ce19

    SHA1

    b75e02615cc0694417a205c878d926497cded12a

    SHA256

    aa03fe3d1ca84068de3382e924668a022c1cb3e192da602dbd667856f8a50be2

    SHA512

    bd76b2f6b3f9ae284ca69b72dab63e53021c6cdcb80619a399f5cb7bd3d3c1e69d6d0341cbb2cad5359fa1b510842a7902f8e6da58a0048b07a49fd1180bbe42

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

    Filesize

    18KB

    MD5

    942dd1b8754a97464626a531f130bd27

    SHA1

    3413a646dc249bb5228ba4f7cbc23d51b31959a8

    SHA256

    6c9f242d79798424edc2efc24c44c267b5b020f561813cd1e2a05150e372853c

    SHA512

    e84cc0b0e99dcf08cf051d3e57fd2826747cfb6cce328fc7d00c1f8cd1bb5591195477715d9772c4da6e838684d1c01b3f67396a75a53eccfc7dc1abedff79ae

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gaatqjdi.abm.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/228-113-0x0000000070850000-0x000000007089C000-memory.dmp

    Filesize

    304KB

  • memory/776-130-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/776-128-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/776-129-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/776-13-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/776-10-0x0000000000400000-0x0000000000414000-memory.dmp

    Filesize

    80KB

  • memory/2260-71-0x0000000070850000-0x000000007089C000-memory.dmp

    Filesize

    304KB

  • memory/2260-70-0x0000000006AD0000-0x0000000006B1C000-memory.dmp

    Filesize

    304KB

  • memory/3060-35-0x0000000070840000-0x000000007088C000-memory.dmp

    Filesize

    304KB

  • memory/3060-51-0x0000000007DE0000-0x0000000007DF1000-memory.dmp

    Filesize

    68KB

  • memory/3060-20-0x0000000005980000-0x00000000059E6000-memory.dmp

    Filesize

    408KB

  • memory/3060-21-0x0000000005AF0000-0x0000000005B56000-memory.dmp

    Filesize

    408KB

  • memory/3060-19-0x00000000058E0000-0x0000000005902000-memory.dmp

    Filesize

    136KB

  • memory/3060-16-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/3060-31-0x0000000006270000-0x00000000065C4000-memory.dmp

    Filesize

    3.3MB

  • memory/3060-32-0x00000000068A0000-0x00000000068BE000-memory.dmp

    Filesize

    120KB

  • memory/3060-33-0x0000000006930000-0x000000000697C000-memory.dmp

    Filesize

    304KB

  • memory/3060-34-0x0000000007880000-0x00000000078B2000-memory.dmp

    Filesize

    200KB

  • memory/3060-15-0x0000000002FC0000-0x0000000002FF6000-memory.dmp

    Filesize

    216KB

  • memory/3060-45-0x0000000006EA0000-0x0000000006EBE000-memory.dmp

    Filesize

    120KB

  • memory/3060-46-0x0000000007AC0000-0x0000000007B63000-memory.dmp

    Filesize

    652KB

  • memory/3060-47-0x0000000008230000-0x00000000088AA000-memory.dmp

    Filesize

    6.5MB

  • memory/3060-48-0x0000000007BE0000-0x0000000007BFA000-memory.dmp

    Filesize

    104KB

  • memory/3060-49-0x0000000007C50000-0x0000000007C5A000-memory.dmp

    Filesize

    40KB

  • memory/3060-50-0x0000000007E60000-0x0000000007EF6000-memory.dmp

    Filesize

    600KB

  • memory/3060-18-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/3060-52-0x0000000007E10000-0x0000000007E1E000-memory.dmp

    Filesize

    56KB

  • memory/3060-53-0x0000000007E20000-0x0000000007E34000-memory.dmp

    Filesize

    80KB

  • memory/3060-54-0x0000000007F20000-0x0000000007F3A000-memory.dmp

    Filesize

    104KB

  • memory/3060-55-0x0000000007F00000-0x0000000007F08000-memory.dmp

    Filesize

    32KB

  • memory/3060-58-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/3060-17-0x0000000005BC0000-0x00000000061E8000-memory.dmp

    Filesize

    6.2MB

  • memory/3468-92-0x0000000070850000-0x000000007089C000-memory.dmp

    Filesize

    304KB

  • memory/3496-6-0x0000000005BF0000-0x0000000005C8C000-memory.dmp

    Filesize

    624KB

  • memory/3496-5-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB

  • memory/3496-4-0x0000000005AD0000-0x0000000005ADA000-memory.dmp

    Filesize

    40KB

  • memory/3496-3-0x0000000005910000-0x00000000059A2000-memory.dmp

    Filesize

    584KB

  • memory/3496-2-0x0000000005DD0000-0x0000000006374000-memory.dmp

    Filesize

    5.6MB

  • memory/3496-1-0x0000000000EA0000-0x0000000000F22000-memory.dmp

    Filesize

    520KB

  • memory/3496-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/3496-7-0x0000000008380000-0x0000000008398000-memory.dmp

    Filesize

    96KB

  • memory/3496-8-0x0000000006500000-0x0000000006510000-memory.dmp

    Filesize

    64KB

  • memory/3496-9-0x0000000006E40000-0x0000000006E96000-memory.dmp

    Filesize

    344KB

  • memory/3496-14-0x00000000745E0000-0x0000000074D90000-memory.dmp

    Filesize

    7.7MB