Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 20:28

General

  • Target

    c9IDU7463.exe

  • Size

    971KB

  • MD5

    26efc684ddd0782b295a6ee4a76e3256

  • SHA1

    08cc73ef5c1b02e09765181a5acee1a7018dcffc

  • SHA256

    bf832f28b8d9f2ff077f691bd7e8a2cf46f3a4ac0ee8ee2d2f2944089abd20ab

  • SHA512

    20ba9e73514148613943db974cf88874907f9fe19e1cf5d81d9bf83ffbd233be80e925c62a5430a7ef69099e603ae54d60680020e0de58e632897f8c4aecfb49

  • SSDEEP

    24576:5tVd1nnqxDvo1QtHCX1LcsRt0ni/V27INjQL:5tVDnquatHCX1Lcs422kpQL

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.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 6 IoCs

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

  • Checks computer location settings 2 TTPs 4 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 5 IoCs
  • Adds Run key to start application 2 TTPs 1 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.

  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Delays execution with timeout.exe 1 IoCs
  • 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: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 40 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 26 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.

  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\c9IDU7463.exe
    "C:\Users\Admin\AppData\Local\Temp\c9IDU7463.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4076
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\Client Server Runtime Process.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1768
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Client Server Runtime Process.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:644
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8685.tmp.bat""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3676
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:4208
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3616
  • C:\Windows\System32\Client Server Runtime Process.exe
    "C:\Windows\System32\Client Server Runtime Process.exe"
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2856
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAG4AZwB0ACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGkAeABoACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGQAdQBmACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGoAYgBqACMAPgA="
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3952
    • C:\Users\Admin\AppData\Local\Temp\Windows Security.exe
      "C:\Users\Admin\AppData\Local\Temp\Windows Security.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:864
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHYAZQBuACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHEAdQB3ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGUAegB4ACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAGMAdQBuACMAPgA="
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4972
      • C:\Users\Admin\AppData\Local\Temp\Windows Security Notification.exe
        "C:\Users\Admin\AppData\Local\Temp\Windows Security Notification.exe"
        3⤵
        • Checks computer location settings
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1236
        • 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 Security Notification.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3460
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Security Notification.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:540
        • 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\malware builder'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3236
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'malware builder'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4100
        • C:\Windows\System32\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "malware builder" /tr "C:\Users\Admin\AppData\Roaming\malware builder"
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:1188
  • C:\Users\Admin\AppData\Roaming\malware builder
    "C:\Users\Admin\AppData\Roaming\malware builder"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2908
  • C:\Users\Admin\AppData\Roaming\malware builder
    "C:\Users\Admin\AppData\Roaming\malware builder"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:1180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    352cc3152afa2cac8adbaf273613dc4d

    SHA1

    55362a0099a417a80bb7a1d8f40090c9d4fd2a14

    SHA256

    587c33652e0d519271e34b2d9610af0c7cf70489c77728aa3aa3a455140b9524

    SHA512

    26ec3cf9ecb1f85754e6f2b3e9c0cc65473bca5124102661b8268747eb5f6dffae80d988fbb3b5266c6561276a1f0c9cdd4f3b2b220fa8b52b7b0c6bb0e2999f

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

    Filesize

    944B

    MD5

    34f595487e6bfd1d11c7de88ee50356a

    SHA1

    4caad088c15766cc0fa1f42009260e9a02f953bb

    SHA256

    0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

    SHA512

    10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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

    Filesize

    944B

    MD5

    2e907f77659a6601fcc408274894da2e

    SHA1

    9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

    SHA256

    385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

    SHA512

    34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

    Filesize

    944B

    MD5

    f9181f64418cae3d8eb73498c74ea2c2

    SHA1

    b034df207dcd05550132de526b89fc7f45e77f3a

    SHA256

    969ebc05f9daffc5ea9c54fa23cfa46ba967cfa4370364e8f47ed988aa0846a0

    SHA512

    ce0ecccdb4bed314f67e7271d1e4c86d0e4db89f3aa37755de355fecc596fc1d7c0a86e0a053dbce2db834cf5f4c382c503ed64880cb8c1ed5155ed70637865c

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

    Filesize

    612B

    MD5

    07aa4ad46f07219275cfdbb475181b2a

    SHA1

    197b0eeb33ca1d181233494011f778f72ed2e67e

    SHA256

    c3a559a77d55e889798f2fca37d2dd83f6493af7ba1b541b9babb8aaee3b9aed

    SHA512

    f4d80cce0fcb99f4a7f60fe8521e287a9ee6587b2d4d2089714593897b4d6cc4299908ddb0b2fae6dc13c1911578687a57a9a80ae19edbcd5258ed4b2723ecc3

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

    Filesize

    944B

    MD5

    eb1ad317bd25b55b2bbdce8a28a74a94

    SHA1

    98a3978be4d10d62e7411946474579ee5bdc5ea6

    SHA256

    9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

    SHA512

    d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

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

    Filesize

    114KB

    MD5

    d59bcf447ab9a90d1c6e9701d85d5700

    SHA1

    c7eff0f1d56e71a601cff1e161879ea520886a32

    SHA256

    50738407f70e37470182a0da6b44e78eb9cd2be3f7c43e066ea85f92388c79ae

    SHA512

    4a33de1700a6740c354d79b6e2f706dbc924805b6c8aae03d68cf17427e52a58e65a177622266f4d4e9d0d0904d8ab7a55af2576d555bcc5868b9084730e7180

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

    Filesize

    164KB

    MD5

    9efb0ca4f150666bedbc6ef91e0e6f4b

    SHA1

    13b140227e709d3a534d4158111c9256b14474b3

    SHA256

    5ff4fc5985d8d9877dd5b4abe081ee91681b187e99a466b802a8795fd9e500ab

    SHA512

    7e16155776a1431eda8da3b2fe134b52863c0917170dc64ded710c5133705a0c019c930f696d5972a0a63270f59900cfca4b776631c0b5442c62696db4f7ca36

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iymuc52a.33b.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp8685.tmp.bat

    Filesize

    161B

    MD5

    a3913db703043c2cf7e427d3e3949209

    SHA1

    492197223abab2d108824b82b061a93a64e30e41

    SHA256

    9df2e372371a957aeb3c83dbe2b5c25f59dec51441d98276484d0b0045df212a

    SHA512

    d57f79f1f99aedcd3f330c969b266c9de38d810db2d0ecf8445495750eaa33f4c90dfd7d09f2273119b9313b90c34e2b2e9f2d3be456fd7724c47fcc626469d6

  • C:\Windows\System32\Client Server Runtime Process.exe

    Filesize

    971KB

    MD5

    26efc684ddd0782b295a6ee4a76e3256

    SHA1

    08cc73ef5c1b02e09765181a5acee1a7018dcffc

    SHA256

    bf832f28b8d9f2ff077f691bd7e8a2cf46f3a4ac0ee8ee2d2f2944089abd20ab

    SHA512

    20ba9e73514148613943db974cf88874907f9fe19e1cf5d81d9bf83ffbd233be80e925c62a5430a7ef69099e603ae54d60680020e0de58e632897f8c4aecfb49

  • memory/864-53-0x0000000000A30000-0x0000000000A5E000-memory.dmp

    Filesize

    184KB

  • memory/1236-75-0x00000000001D0000-0x00000000001F2000-memory.dmp

    Filesize

    136KB

  • memory/1768-14-0x00007FFA88830000-0x00007FFA892F1000-memory.dmp

    Filesize

    10.8MB

  • memory/1768-18-0x00007FFA88830000-0x00007FFA892F1000-memory.dmp

    Filesize

    10.8MB

  • memory/1768-15-0x00007FFA88830000-0x00007FFA892F1000-memory.dmp

    Filesize

    10.8MB

  • memory/1768-13-0x0000020A7FF50000-0x0000020A7FF72000-memory.dmp

    Filesize

    136KB

  • memory/1768-12-0x00007FFA88830000-0x00007FFA892F1000-memory.dmp

    Filesize

    10.8MB

  • memory/2856-41-0x000000001B2B0000-0x000000001B2EC000-memory.dmp

    Filesize

    240KB

  • memory/2856-40-0x00000000028C0000-0x0000000002988000-memory.dmp

    Filesize

    800KB

  • memory/4076-39-0x00007FFA88830000-0x00007FFA892F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4076-0-0x00007FFA88833000-0x00007FFA88835000-memory.dmp

    Filesize

    8KB

  • memory/4076-2-0x00007FFA88830000-0x00007FFA892F1000-memory.dmp

    Filesize

    10.8MB

  • memory/4076-1-0x0000000000AB0000-0x0000000000BAA000-memory.dmp

    Filesize

    1000KB