Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-05-2024 15:54

General

  • Target

    ca83463a0b08d1a04d19a0a28e11e6a8123753061a91e21dbf09a1aba55e1526.exe

  • Size

    85KB

  • MD5

    d9f622dd3ba5ba4e70a51e7d690e8019

  • SHA1

    e7a5149a04e34782d8cf95248955d726df26ad72

  • SHA256

    ca83463a0b08d1a04d19a0a28e11e6a8123753061a91e21dbf09a1aba55e1526

  • SHA512

    a0cbeafabfcd916e132f8d4bfcc69adb280022a107102199cd99372fb8b76fc08332f9d24863eab19f264e697b3340917a85073a7a5be76e158abcca3145b1a7

  • SSDEEP

    1536:X8cC9V4pEQ5RZxzK1bgB+bN4JdErIlkUH66q7ICKO7JIbVhk:X82DZ3B+bN1IlLHWUdO9I5hk

Malware Config

Extracted

Family

xworm

C2

character-estimate.gl.at.ply.gg:61192

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    Chrome.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
  • Adds Run key to start application 2 TTPs 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 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ca83463a0b08d1a04d19a0a28e11e6a8123753061a91e21dbf09a1aba55e1526.exe
    "C:\Users\Admin\AppData\Local\Temp\ca83463a0b08d1a04d19a0a28e11e6a8123753061a91e21dbf09a1aba55e1526.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1396
    • 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\ca83463a0b08d1a04d19a0a28e11e6a8123753061a91e21dbf09a1aba55e1526.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3924
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'ca83463a0b08d1a04d19a0a28e11e6a8123753061a91e21dbf09a1aba55e1526.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4776
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\Chrome.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2384
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Chrome.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:920

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

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

    Filesize

    944B

    MD5

    e243a38635ff9a06c87c2a61a2200656

    SHA1

    ecd95ed5bf1a9fbe96a8448fc2814a0210fa2afc

    SHA256

    af5782703f3f2d5a29fb313dae6680a64134db26064d4a321a3f23b75f6ca00f

    SHA512

    4418957a1b10eee44cf270c81816ae707352411c4f5ac14b6b61ab537c91480e24e0a0a2c276a6291081b4984c123cf673a45dcedb0ceeef682054ba0fc19cb4

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

    Filesize

    944B

    MD5

    110b59ca4d00786d0bde151d21865049

    SHA1

    557e730d93fdf944a0cad874022df1895fb5b2e2

    SHA256

    77f69011c214ea5a01fd2035d781914c4893aee66d784deadc22179eadfdf77f

    SHA512

    cb55ac6eca50f4427718bace861679c88b2fdfea94d30209e8d61ca73a6ce9f8c4b5334922d2660a829b0636d20cbdf3bae1497c920e604efe6c636019feb10e

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

    Filesize

    944B

    MD5

    ef72c47dbfaae0b9b0d09f22ad4afe20

    SHA1

    5357f66ba69b89440b99d4273b74221670129338

    SHA256

    692ec20c7039170fb199510f0436181fd155e6b4516d4d1c9e1675adf99aaa7f

    SHA512

    7514b6bc8dc39fa618223300be27cd535dc35b18c66b4a089e2302e72b3e0cac06d88a989fa1296feb386b3cbe2084019df6430c7f895071b76e04ce559a30b4

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o05w5432.mi5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1396-1-0x0000000000AF0000-0x0000000000B0C000-memory.dmp

    Filesize

    112KB

  • memory/1396-59-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/1396-0-0x00007FFE899C3000-0x00007FFE899C5000-memory.dmp

    Filesize

    8KB

  • memory/1396-58-0x00007FFE899C3000-0x00007FFE899C5000-memory.dmp

    Filesize

    8KB

  • memory/1396-57-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/3924-12-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/3924-18-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/3924-15-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/3924-14-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/3924-13-0x00007FFE899C0000-0x00007FFE8A481000-memory.dmp

    Filesize

    10.8MB

  • memory/3924-2-0x0000029FAD1E0000-0x0000029FAD202000-memory.dmp

    Filesize

    136KB