Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2024 12:56

General

  • Target

    9b9da065249e8fe54710e673923b7cd5_JaffaCakes118.exe

  • Size

    35KB

  • MD5

    9b9da065249e8fe54710e673923b7cd5

  • SHA1

    855744b965629510b6929fa1d2e19cd6c796f030

  • SHA256

    56290c2104affa1cf206123446540929c031486b6c3b3519b2de9a96963c9710

  • SHA512

    4a38a4bc84911ece6042746aa631e5077373197b2cec269c3b89b7bbb4bf0b0fd992b080f69d7c1daab608b9653be9f48cbce0c9bb9ac6a89a3ca2ffc566d1f3

  • SSDEEP

    768:Di/8POyOVXowzUyQ9EKa2Fi9k13ebvMSPIl1R3R:DNPlOVXowzUL+KOOMb0P33R

Malware Config

Signatures

  • R77 family
  • r77

    r77 is an open-source, userland rootkit.

  • r77 rootkit payload 1 IoCs

    Detects the payload of the r77 rootkit.

  • 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.

  • Downloads MZ/PE file
  • Event Triggered Execution: AppInit DLLs 1 TTPs

    Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

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

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Suspicious behavior: EnumeratesProcesses 33 IoCs
  • Suspicious use of AdjustPrivilegeToken 30 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9b9da065249e8fe54710e673923b7cd5_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\9b9da065249e8fe54710e673923b7cd5_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:548
    • C:\Windows\SYSTEM32\cmd.exe
      cmd.exe /c attrib -h -r -s "C:\ProgramData\Microsoft\$77-SystemProcessor.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:620
      • C:\Windows\system32\attrib.exe
        attrib -h -r -s "C:\ProgramData\Microsoft\$77-SystemProcessor.exe"
        3⤵
        • Views/modifies file attributes
        PID:4024
    • C:\ProgramData\Microsoft\$77-SystemProcessor.exe
      "C:\ProgramData\Microsoft\$77-SystemProcessor.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4104
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft'
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:644
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$77-SystemProcessor.exe'
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3000
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\$77-SystemProcessor.exe'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:760
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\r77-x64.dll'
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1272
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\r77-x64.dll'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4220
      • C:\Windows\System32\cmd.exe
        "C:\Windows\System32\cmd.exe" /k start /b powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\r77-x86.dll'
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3256
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell -inputformat none -outputformat none -NonInteractive -Command Add-MpPreference -ExclusionPath 'C:\ProgramData\Microsoft\r77-x86.dll'
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2824
      • C:\Windows\SYSTEM32\netsh.exe
        netsh firewall delete allowedprogram "C:\ProgramData\Microsoft\$77-SystemProcessor.exe"
        3⤵
        • Modifies Windows Firewall
        • Loads dropped DLL
        • Event Triggered Execution: Netsh Helper DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:4852

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Microsoft\$77-SystemProcessor.exe

    Filesize

    35KB

    MD5

    9b9da065249e8fe54710e673923b7cd5

    SHA1

    855744b965629510b6929fa1d2e19cd6c796f030

    SHA256

    56290c2104affa1cf206123446540929c031486b6c3b3519b2de9a96963c9710

    SHA512

    4a38a4bc84911ece6042746aa631e5077373197b2cec269c3b89b7bbb4bf0b0fd992b080f69d7c1daab608b9653be9f48cbce0c9bb9ac6a89a3ca2ffc566d1f3

  • C:\ProgramData\Microsoft\r77-x64.dll

    Filesize

    147KB

    MD5

    1b8bd653321cf3cbc786e563555fbc75

    SHA1

    5638efe0476c8c1b74c6604db419be814d1d90a0

    SHA256

    919a332e85d7c32a6f0a1bdd15b211b8b273b73fe05a553ea0f230a0958586c7

    SHA512

    bafdbc8413828c5427983fa0e9403a2d9a88d0ad2f27f92842310852d273f2d2c9a0c6f9f64e1aac03fadf49f9a3bcf58c6b7c8b06debcce46536114cde0175b

  • 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

    64B

    MD5

    d8b9a260789a22d72263ef3bb119108c

    SHA1

    376a9bd48726f422679f2cd65003442c0b6f6dd5

    SHA256

    d69d47e428298f194850d14c3ce375e7926128a0bfb62c1e75940ab206f8fddc

    SHA512

    550314fab1e363851a7543c989996a440d95f7c9db9695cce5abaad64523f377f48790aa091d66368f50f941179440b1fa94448289ee514d5b5a2f4fe6225e9b

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

    Filesize

    64B

    MD5

    446dd1cf97eaba21cf14d03aebc79f27

    SHA1

    36e4cc7367e0c7b40f4a8ace272941ea46373799

    SHA256

    a7de5177c68a64bd48b36d49e2853799f4ebcfa8e4761f7cc472f333dc5f65cf

    SHA512

    a6d754709f30b122112ae30e5ab22486393c5021d33da4d1304c061863d2e1e79e8aeb029cae61261bb77d0e7becd53a7b0106d6ea4368b4c302464e3d941cf7

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ovrqwjsc.abo.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/548-0-0x00007FFCBC1F3000-0x00007FFCBC1F5000-memory.dmp

    Filesize

    8KB

  • memory/548-15-0x00007FFCBC1F0000-0x00007FFCBCCB1000-memory.dmp

    Filesize

    10.8MB

  • memory/548-10-0x00007FFCBC1F0000-0x00007FFCBCCB1000-memory.dmp

    Filesize

    10.8MB

  • memory/548-1-0x0000000000520000-0x0000000000530000-memory.dmp

    Filesize

    64KB

  • memory/644-55-0x0000011F69430000-0x0000011F69452000-memory.dmp

    Filesize

    136KB

  • memory/4104-27-0x00007FFCBC1F0000-0x00007FFCBCCB1000-memory.dmp

    Filesize

    10.8MB

  • memory/4104-16-0x00007FFCBC1F0000-0x00007FFCBCCB1000-memory.dmp

    Filesize

    10.8MB