Analysis

  • max time kernel
    93s
  • max time network
    98s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-05-2024 22:57

General

  • Target

    69e06fc6c68a774fcdb6f058e76486712f29e8ea5636f5da58142b4124203ffd.exe

  • Size

    63KB

  • MD5

    cf09b93381cb9f47f7e7591818cccb12

  • SHA1

    dfae8cda8dd925c3ef07a8c10e68ec700d55ddde

  • SHA256

    69e06fc6c68a774fcdb6f058e76486712f29e8ea5636f5da58142b4124203ffd

  • SHA512

    18657439715fd161183e41f701dc52ca223dee25b807fd14dfddb5f489e80db39d7d59a98417aee5b8b59bcd42b42d6050392cb212e2e48a4f3bc224f7540f51

  • SSDEEP

    768:jSxam3Usjr3REXXr8yxFChMp7v9DLKrzCnbcuyD7UVeQI5noScAvcV4RP0U+t6:jRsjdEIUFC2p79OCnouy8VDNAG4RsfU

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • UPX dump on OEP (original entry point) 17 IoCs
  • Disables RegEdit via registry modification 2 IoCs
  • Disables use of System Restore points 1 TTPs
  • Executes dropped EXE 7 IoCs
  • Modifies system executable filetype association 2 TTPs 13 IoCs
  • UPX packed file 17 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 5 IoCs
  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 2 IoCs
  • Modifies Control Panel 4 IoCs
  • Modifies registry class 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • System policy modification 1 TTPs 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\69e06fc6c68a774fcdb6f058e76486712f29e8ea5636f5da58142b4124203ffd.exe
    "C:\Users\Admin\AppData\Local\Temp\69e06fc6c68a774fcdb6f058e76486712f29e8ea5636f5da58142b4124203ffd.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Disables RegEdit via registry modification
    • Modifies system executable filetype association
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies Control Panel
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:3048
    • C:\Windows\xk.exe
      C:\Windows\xk.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:3360
    • C:\Windows\SysWOW64\IExplorer.exe
      C:\Windows\system32\IExplorer.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1488
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:3640
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\CSRSS.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1680
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\SERVICES.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:1236
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\LSASS.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4924
    • C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE
      "C:\Users\Admin\Local Settings\Application Data\WINDOWS\SMSS.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:384

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\WINDOWS\CSRSS.EXE

    Filesize

    63KB

    MD5

    066610e4cbac0a7e468a1dfa6963b287

    SHA1

    9e452e150fc91c100b7bd2d3c9150359658e6fa8

    SHA256

    f4a10e4b345fac84c45eecd0dead8348e0c1384135a368e07af4db3f63b66d51

    SHA512

    1081e9549359b13a8440c6d75370b38bd07f9095f26eff83fe19163f22ec18bf6d80408dc82e7248dba0b32844a98374e56f875749ec12915791702afa251b80

  • C:\Users\Admin\AppData\Local\WINDOWS\LSASS.EXE

    Filesize

    63KB

    MD5

    81362207761414706d9742820ec8e988

    SHA1

    cb534b4d8dea178a3d2cadecb25aa5cceb3eed8b

    SHA256

    d4e427fdbd953e50c73f23834888d53dbb7eeb5883f02d4eaae8b8b4d6ea1ef5

    SHA512

    175e8aa3e597d764ad7a490a02fe428175da6bb6494584262ea4614158ff22c0f018929449bc6ab7d303cd6aebab3d76a7e98495258d69d80a9a08ab91341107

  • C:\Users\Admin\AppData\Local\WINDOWS\SERVICES.EXE

    Filesize

    63KB

    MD5

    924c06cc4cb2865ad79ddfee1bdb4014

    SHA1

    b115c64b59521858cd856d6b8028b1cd1d56c4d1

    SHA256

    0bc0990a65486b0d41248904386e712503cce64151b4e4d4a7e03cc983c2d5db

    SHA512

    a8d47c3d01a6435f0aead9e2acd25aaa94cd14d8bc8798e3ac1dbb648829d08738bb5dd678eeaa83ff7b64ade243e68ea412c06405a1a9f9572c3317acf5552b

  • C:\Users\Admin\AppData\Local\WINDOWS\SMSS.EXE

    Filesize

    63KB

    MD5

    0233ae270739c9ff1a1b18b9b67a006f

    SHA1

    e3a2dfde6c3823ec57d30e085f2a9bb68413428a

    SHA256

    e42f6fbf145f9ed8e86f29e5711d120da83610598058e4c871727e8980b26d94

    SHA512

    f5c2ea1be17e3af6f6ed7731ac9a33249131b93110476e13dbdcd836c7358b283a5841fb76ceb93a8cab982f7c7fd2b8a04c4c7057125bee0e40c5cd4aaa825d

  • C:\Users\Admin\AppData\Local\winlogon.exe

    Filesize

    63KB

    MD5

    cf09b93381cb9f47f7e7591818cccb12

    SHA1

    dfae8cda8dd925c3ef07a8c10e68ec700d55ddde

    SHA256

    69e06fc6c68a774fcdb6f058e76486712f29e8ea5636f5da58142b4124203ffd

    SHA512

    18657439715fd161183e41f701dc52ca223dee25b807fd14dfddb5f489e80db39d7d59a98417aee5b8b59bcd42b42d6050392cb212e2e48a4f3bc224f7540f51

  • C:\Users\Admin\Local Settings\Application Data\WINDOWS\WINLOGON.EXE

    Filesize

    63KB

    MD5

    22fedfd49bcbdf2dafee43af61f9886a

    SHA1

    c030b0cc222ac8331535c5a21e71eeb9c6dda693

    SHA256

    7dccea0695b5d7eaa6ff770a993d182d66491bb758e0a130b9c2f6081c9467b9

    SHA512

    96d888c2bde24945445f6bb27e6b915db6c704c37e659ed8fc079c35889419dc5f80418f5dabfd543c78c771f34919624546883b9330707f5487af51ac7bac93

  • C:\Windows\SysWOW64\IExplorer.exe

    Filesize

    63KB

    MD5

    8be14d17e052659b7d2b32c7c0112913

    SHA1

    5e3ac453190b0cccd0d2f675e91eff8ea1dcd5ad

    SHA256

    5a491c2d8ceebca2e8333de9a73724ba9ad1a5206017299d79e4a1e4d09f8277

    SHA512

    f4e9bfebaf907920c425d6362d4204c7bd60d0bdf1354067020622b9e2d1d479036f85873678ba621934427c5a8b62c3c778a2e57b8ff3c941d34ed14bd941d1

  • C:\Windows\xk.exe

    Filesize

    63KB

    MD5

    5044278004b21813ab0b6a8069551e99

    SHA1

    64d0c1344209a3152c97a08454147a4ed28e84c6

    SHA256

    6688a67d5e4adfce9eae8632036774fe00b9fb9c52a81e2121b5c065ea5282f7

    SHA512

    05a43d409f73eb9575f270fc9697c9ad64da64627718397b88c60b1cfbb1694adcdefe84897465a33168460ff829b412440964e38d211236176c2b9b4ad292d6

  • memory/384-150-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1236-137-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1488-120-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/1680-131-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/3048-0-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/3048-151-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/3360-111-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/3640-124-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/3640-121-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB