Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    27-01-2025 18:16

General

  • Target

    PlainX Crypter.exe

  • Size

    13.1MB

  • MD5

    e02070f24247621be04948fefe100a81

  • SHA1

    e41afedf121e07b6598355562fdf5725a5dc4064

  • SHA256

    d087091be3376d85fc1d39523f82ebe1d01b7ac4e4d10f1855f374498fddcc71

  • SHA512

    ca39dbf2f1b9a6d3071e2d18e51ed9d5f222ed4155721faebcf72c2aad929607a027eaf5d1f0942d4c6827260ff3be6d2516e5d4f26a7fd0e53eb5e39a261dfc

  • SSDEEP

    196608:M9dla9WjVQJz4JuRuVXt7teDDT5A0GJLz8o2Z/NA1cV1zoXfKNPqxTP6fHrCoz/B:M9dfdXtWDT5no2Z1Wcb0IPuC/r/ya+8

Malware Config

Extracted

Family

xworm

Version

5.0

Mutex

WcpxqjjxSrB6UOUw

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

  • pastebin_url

    https://pastebin.com/raw/RPPi3ByL

  • telegram

    https://api.telegram.org/bot7483240807:AAHWuUBi6sW9ZOb0kfXVbzbMVyLtPj-9vZY/sendMessage?chat_id=5279018187

aes.plain
aes.plain
aes.plain

Extracted

Family

stealerium

C2

https://api.telegram.org/bot7204924753:AAFaqmmBR9ybp4-iE8BA2YCiFNUbOEd0Ljk/sendMessage?chat_id=

Attributes

Signatures

  • Detect Xworm Payload 12 IoCs
  • Stealerium

    An open source info stealer written in C# first seen in May 2022.

  • Stealerium family
  • 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.

  • Drops startup file 6 IoCs
  • Executes dropped EXE 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

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

  • Delays execution with timeout.exe 1 IoCs
  • Kills process with taskkill 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 20 IoCs
  • Suspicious use of WriteProcessMemory 64 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\PlainX Crypter.exe
    "C:\Users\Admin\AppData\Local\Temp\PlainX Crypter.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Roaming\Chrome Update.exe
      "C:\Users\Admin\AppData\Roaming\Chrome Update.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2416
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1320
    • C:\Users\Admin\AppData\Roaming\OneDrive.exe
      "C:\Users\Admin\AppData\Roaming\OneDrive.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2380
      • 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\OneDrive.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2932
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OneDrive.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1900
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\OneDrive.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2796
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OneDrive.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2252
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "OneDrive" /tr "C:\ProgramData\OneDrive.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2184
    • C:\Users\Admin\AppData\Roaming\msedge.exe
      "C:\Users\Admin\AppData\Roaming\msedge.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2660
      • 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\msedge.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2728
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:316
      • 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\msedge.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2424
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1288
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "msedge" /tr "C:\Users\Admin\AppData\Local\msedge.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:1612
    • C:\Users\Admin\AppData\Roaming\OwnZ Crypter Cracked.exe
      "C:\Users\Admin\AppData\Roaming\OwnZ Crypter Cracked.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2564
    • C:\Users\Admin\AppData\Roaming\update.dotnet.exe
      "C:\Users\Admin\AppData\Roaming\update.dotnet.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\16870a3d-bae8-4c84-82dd-5ec02f0a300b.bat"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1256
        • C:\Windows\system32\chcp.com
          chcp 65001
          4⤵
            PID:2300
          • C:\Windows\system32\taskkill.exe
            taskkill /F /PID 2544
            4⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2836
          • C:\Windows\system32\timeout.exe
            timeout /T 2 /NOBREAK
            4⤵
            • Delays execution with timeout.exe
            PID:2556
    • C:\Windows\system32\taskeng.exe
      taskeng.exe {EF69031C-6C93-4331-BA4C-19FDA237B053} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
      1⤵
      • Suspicious use of WriteProcessMemory
      PID:1904
      • C:\Users\Admin\AppData\Local\msedge.exe
        C:\Users\Admin\AppData\Local\msedge.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2580
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1872
      • C:\ProgramData\OneDrive.exe
        C:\ProgramData\OneDrive.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2864
      • C:\Users\Admin\AppData\Local\msedge.exe
        C:\Users\Admin\AppData\Local\msedge.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:980
      • C:\ProgramData\OneDrive.exe
        C:\ProgramData\OneDrive.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2268
      • C:\Users\Admin\AppData\Roaming\XClient.exe
        C:\Users\Admin\AppData\Roaming\XClient.exe
        2⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2172

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\16870a3d-bae8-4c84-82dd-5ec02f0a300b.bat

      Filesize

      152B

      MD5

      c99de4a1ebbfac3e3d87fedce1e203ba

      SHA1

      3a9588600fd5b4ba5e69dc5f957015d95a163b9c

      SHA256

      301caade22dd98956004ead7f11167e6668af1f0e88f5664a2ac638cd1c52856

      SHA512

      d3eadf00d7c4f7801d3cd5946a9358f18b7723c4227c4fb96f035c391e0f607aad0322f47067f81ce350935ae75edc17f8cbf0e6c29a5e3df4095441e23c2d75

    • C:\Users\Admin\AppData\Local\Temp\Cab179.tmp

      Filesize

      70KB

      MD5

      49aebf8cbd62d92ac215b2923fb1b9f5

      SHA1

      1723be06719828dda65ad804298d0431f6aff976

      SHA256

      b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

      SHA512

      bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

    • C:\Users\Admin\AppData\Local\Temp\Tar18C.tmp

      Filesize

      181KB

      MD5

      4ea6026cf93ec6338144661bf1202cd1

      SHA1

      a1dec9044f750ad887935a01430bf49322fbdcb7

      SHA256

      8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

      SHA512

      6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

    • C:\Users\Admin\AppData\Roaming\Chrome Update.exe

      Filesize

      153KB

      MD5

      8b8585c779df2f6df99f749d3b07f146

      SHA1

      b553267f8e6f2bb6531ca2cb330e0d6b7bc41a1d

      SHA256

      4a9d13e9b68d26c6feb71856b7a61a2a1b8f2dc1c7aaa9ad5dfd5609b5a2da6c

      SHA512

      b89cae4386d0b8173b87533b5af3d863a188836185d105d6007786ba0e415537e84b759b8c22b37430ee544c554db9f50aa21466c5549c8b80c4f5a3fa6cb5c7

    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

      Filesize

      7KB

      MD5

      9b84ef227232efd3300ee533921a270a

      SHA1

      c09cdf36512f9726662f88218ea56c8f07bc5c2b

      SHA256

      1aaa2eaa9235512b7520200e81e46181feae17c89b4f8ec9c194c5b5aef17da5

      SHA512

      1e7beb1a845c322fbea5696d13d113756360a05e3c640e0f12f538fc2570acf25d95fc6e56761e3e40fe02a088ebe61f0012ab2ad39808631661ab2ff6208be8

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

      Filesize

      140KB

      MD5

      a1cd6f4a3a37ed83515aa4752f98eb1d

      SHA1

      7f787c8d72787d8d130b4788b006b799167d1802

      SHA256

      5cbcc0a0c1d74cd54ac999717b0ff0607fe6ed02cca0a3e0433dd94783cfec65

      SHA512

      9489287e0b4925345fee05fe2f6e6f12440af1425ef397145e32e6f80c7ae98b530e42002d92dc156643f9829bc8a3b969e855cecd2265b6616c4514eed00355

    • C:\Users\Admin\AppData\Roaming\OwnZ Crypter Cracked.exe

      Filesize

      6.4MB

      MD5

      912d0dbf45dddf56894ba193ae36e51f

      SHA1

      db3a3ad9f02d654f1f32baeec74a6868ade402a9

      SHA256

      24cf39d5a16c0cdce77c41523af6040d666da2f1dc98d005f7510b0bad6901dd

      SHA512

      18a28e48d11e97057338d2f69afaa513cc61a71093de9ba1688881ec545c8c2af27ef9761cc87d00a3860ec264555443707b2fffa712249bd68db947c2568ebd

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

      Filesize

      166KB

      MD5

      aee20d80f94ae0885bb2cabadb78efc9

      SHA1

      1e82eba032fcb0b89e1fdf937a79133a5057d0a1

      SHA256

      498eb55b3fb4c4859ee763a721870bb60ecd57e99f66023b69d8a258efa3af7d

      SHA512

      3a05ff32b9aa79092578c09dfe67eaca23c6fe8383111dab05117f39d91f27670029f39482827d191bd6a652483202b8fc1813f8d5a0f3f73fd35ca37a4f6d42

    • C:\Users\Admin\AppData\Roaming\update.dotnet.exe

      Filesize

      6.1MB

      MD5

      b3899dd5602b3587ee487ba34d7cfd47

      SHA1

      ace70e4fcea9b819eaf5bda4453866698252357f

      SHA256

      28c53ad86d705da7e21a1c0cbc996e15ab8f024368aa031b025d05f3dfdbeb2e

      SHA512

      104b8252db4e9a88e388370a6def71e0cbb536604d5a41ac60169a35a9662980d1359000d5ea316f29deb4c534678e86e266bba12bb0b658f2666d13b26c200a

    • memory/316-57-0x00000000027E0000-0x00000000027E8000-memory.dmp

      Filesize

      32KB

    • memory/316-56-0x000000001B6D0000-0x000000001B9B2000-memory.dmp

      Filesize

      2.9MB

    • memory/980-374-0x00000000011C0000-0x00000000011EE000-memory.dmp

      Filesize

      184KB

    • memory/1872-361-0x0000000000D40000-0x0000000000D6C000-memory.dmp

      Filesize

      176KB

    • memory/2172-376-0x0000000000F10000-0x0000000000F3C000-memory.dmp

      Filesize

      176KB

    • memory/2268-373-0x0000000001170000-0x0000000001198000-memory.dmp

      Filesize

      160KB

    • memory/2380-16-0x0000000000370000-0x0000000000398000-memory.dmp

      Filesize

      160KB

    • memory/2416-33-0x000007FEF61E0000-0x000007FEF6BCC000-memory.dmp

      Filesize

      9.9MB

    • memory/2416-12-0x0000000000910000-0x000000000093C000-memory.dmp

      Filesize

      176KB

    • memory/2416-254-0x000007FEF61E0000-0x000007FEF6BCC000-memory.dmp

      Filesize

      9.9MB

    • memory/2424-70-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

      Filesize

      2.9MB

    • memory/2424-71-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

      Filesize

      32KB

    • memory/2544-32-0x0000000001130000-0x0000000001746000-memory.dmp

      Filesize

      6.1MB

    • memory/2580-367-0x0000000000C10000-0x0000000000C3E000-memory.dmp

      Filesize

      184KB

    • memory/2660-25-0x00000000009B0000-0x00000000009DE000-memory.dmp

      Filesize

      184KB

    • memory/2672-0-0x000007FEF61E3000-0x000007FEF61E4000-memory.dmp

      Filesize

      4KB

    • memory/2672-1-0x0000000001020000-0x0000000001D3E000-memory.dmp

      Filesize

      13.1MB

    • memory/2864-366-0x00000000010C0000-0x00000000010E8000-memory.dmp

      Filesize

      160KB

    • memory/2932-39-0x0000000001E70000-0x0000000001E78000-memory.dmp

      Filesize

      32KB

    • memory/2932-38-0x000000001B7B0000-0x000000001BA92000-memory.dmp

      Filesize

      2.9MB