Analysis

  • max time kernel
    138s
  • 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
    22-06-2024 02:47

General

  • Target

    0e9ed9a55cd440844668e5937cd2afb5a48dd5a17a3530fc4f9868038e305723.exe

  • Size

    67KB

  • MD5

    2b274de1ba95b66b41fd57ba95e10653

  • SHA1

    ac08368b132f60bf0bd6adfb78153be62883c878

  • SHA256

    0e9ed9a55cd440844668e5937cd2afb5a48dd5a17a3530fc4f9868038e305723

  • SHA512

    fa37fec96549faaf75c775902917aa250f484db72c11d3324cabea37deb609d26c992f7dc26ce5714388784cf688a103c8d33d9e82bb9f0acedc357aa86d5844

  • SSDEEP

    1536:AO6daHktjZytoFTeuDXvq0Zp2yby0BT7BIP5b6xihOuuvZY:da0o1euDXkyby11hOuGZY

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:32901

engineering-thoroughly.gl.at.ply.gg:32901

Attributes
  • Install_directory

    %AppData%

  • install_file

    OxyInstaller.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
  • Looks up external IP address via web service 1 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0e9ed9a55cd440844668e5937cd2afb5a48dd5a17a3530fc4f9868038e305723.exe
    "C:\Users\Admin\AppData\Local\Temp\0e9ed9a55cd440844668e5937cd2afb5a48dd5a17a3530fc4f9868038e305723.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1720
    • 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\0e9ed9a55cd440844668e5937cd2afb5a48dd5a17a3530fc4f9868038e305723.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1012
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0e9ed9a55cd440844668e5937cd2afb5a48dd5a17a3530fc4f9868038e305723.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3576
    • 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\OxyInstaller.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4100
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'OxyInstaller.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3888

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

    c4bac001ce1ea76036b69ef6920fffe1

    SHA1

    ce176b38f2ee4b300cbec04592f70b65b45491ed

    SHA256

    2895ccfe721a7d966bb407b4bb713320d3fb11ceb793fcc84a751abb755ca1c6

    SHA512

    e8616fb64a420202573cad3253b5714816b09522c8f466d0a42b77701d911146f501e3ec06e0b7d79f56d42ea2cc25c642ff64f57242bb609db039484b12ddc3

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

    Filesize

    944B

    MD5

    a7cc007980e419d553568a106210549a

    SHA1

    c03099706b75071f36c3962fcc60a22f197711e0

    SHA256

    a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165

    SHA512

    b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uufth1go.jnu.psm1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/1012-3-0x00007FFF04090000-0x00007FFF04B51000-memory.dmp

    Filesize

    10.8MB

  • memory/1012-13-0x00007FFF04090000-0x00007FFF04B51000-memory.dmp

    Filesize

    10.8MB

  • memory/1012-14-0x00007FFF04090000-0x00007FFF04B51000-memory.dmp

    Filesize

    10.8MB

  • memory/1012-15-0x000001D240DE0000-0x000001D240E02000-memory.dmp

    Filesize

    136KB

  • memory/1012-18-0x00007FFF04090000-0x00007FFF04B51000-memory.dmp

    Filesize

    10.8MB

  • memory/1720-0-0x00007FFF04093000-0x00007FFF04095000-memory.dmp

    Filesize

    8KB

  • memory/1720-2-0x00007FFF04090000-0x00007FFF04B51000-memory.dmp

    Filesize

    10.8MB

  • memory/1720-1-0x0000000000DB0000-0x0000000000DC8000-memory.dmp

    Filesize

    96KB

  • memory/1720-57-0x00007FFF04093000-0x00007FFF04095000-memory.dmp

    Filesize

    8KB

  • memory/1720-58-0x00007FFF04090000-0x00007FFF04B51000-memory.dmp

    Filesize

    10.8MB