Analysis

  • max time kernel
    146s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240508-en
  • resource tags

    arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    26-05-2024 15:22

General

  • Target

    Expensive 3.0.exe

  • Size

    71KB

  • MD5

    4d8c67f116afed39d1a1638d1f60e82c

  • SHA1

    f7bde1231a237cd5bb663c729bee92bbdf20e46d

  • SHA256

    adba1f5dfc1e917467184dcc01cd67fe3e5dfafa5db03c52b4bb7894827fad79

  • SHA512

    9cc32e1dbe32d6f45f0c25782f55e0a62eb0cc78d426834cec9a91f209d2cc72fa7e1dc0995339a227b0f6124ac84602272aa1d71d0dfb6eea11328fe6415364

  • SSDEEP

    1536:FscQuSvo0znd8gyFRN2ibLC+bxGuTMcpoz6G4OufqN:FoPtzn+PNDbLC+bxGuTSF4Oufu

Malware Config

Extracted

Family

xworm

C2

loss-winners.gl.at.ply.gg:61007:1567

Attributes
  • Install_directory

    %AppData%

  • install_file

    Expensive 3.1.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.

  • 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\Expensive 3.0.exe
    "C:\Users\Admin\AppData\Local\Temp\Expensive 3.0.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4088
    • 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\Expensive 3.0.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4988
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Expensive 3.0.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3944
    • 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\Expensive 3.1.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:788
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Expensive 3.1.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3412

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

    627073ee3ca9676911bee35548eff2b8

    SHA1

    4c4b68c65e2cab9864b51167d710aa29ebdcff2e

    SHA256

    85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

    SHA512

    3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

    Filesize

    944B

    MD5

    2e8eb51096d6f6781456fef7df731d97

    SHA1

    ec2aaf851a618fb43c3d040a13a71997c25bda43

    SHA256

    96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

    SHA512

    0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

    Filesize

    944B

    MD5

    f8c40f7624e23fa92ae2f41e34cfca77

    SHA1

    20e742cfe2759ac2adbc16db736a9e143ca7b677

    SHA256

    c51a52818a084addbfa913d2bb4bb2b0e60c287a4cf98e679f18b8a521c0aa7b

    SHA512

    f1da3ec61403d788d417d097a7ed2947203c6bff3cf1d35d697c31edecdf04710b3e44b2aa263b886e297b2ce923fea410ccc673261928f1d0cd81252740dbe7

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

    Filesize

    944B

    MD5

    afd658f862c04666c1f51238869a968c

    SHA1

    5b88a35271011acd76727140676599219bcdf83f

    SHA256

    6fc05790686b22b440dc0eeee39ec795876073b974d3aa7b3a627f3061247bed

    SHA512

    eb4f310e8f2925e41470a221263f00eb571bdff1110ebdb0f08723e0b228b0355c29ba66d97d9eae49f97e2699ee5fa480d87692bdd99528f933134900f2abca

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uvmculxv.jh5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/4088-1-0x00007FFCB83B3000-0x00007FFCB83B5000-memory.dmp

    Filesize

    8KB

  • memory/4088-0-0x0000000000100000-0x0000000000118000-memory.dmp

    Filesize

    96KB

  • memory/4088-49-0x00007FFCB83B0000-0x00007FFCB8E72000-memory.dmp

    Filesize

    10.8MB

  • memory/4088-50-0x00007FFCB83B0000-0x00007FFCB8E72000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-12-0x00007FFCB83B0000-0x00007FFCB8E72000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-15-0x00007FFCB83B0000-0x00007FFCB8E72000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-16-0x00007FFCB83B0000-0x00007FFCB8E72000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-11-0x00007FFCB83B0000-0x00007FFCB8E72000-memory.dmp

    Filesize

    10.8MB

  • memory/4988-7-0x00000149BA3D0000-0x00000149BA3F2000-memory.dmp

    Filesize

    136KB