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Analysis

  • max time kernel
    150s
  • max time network
    161s
  • platform
    windows7_x64
  • resource
    win7-20240611-en
  • resource tags

    arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
  • submitted
    01-07-2024 18:02

General

  • Target

    42f972925508a82236e8533567487761.exe

  • Size

    3.7MB

  • MD5

    9d2a888ca79e1ff3820882ea1d88d574

  • SHA1

    112c38d80bf2c0d48256249bbabe906b834b1f66

  • SHA256

    8b5b38085f12d51393ed5a481a554074d3c482d53ecd917f2f5dffdf3d2ee138

  • SHA512

    17a9f74ecf9f118ed0252fa0bc6ce0f9758a4dc75f238cae304def9c37cd94623818dd4aef38826642ff9e549b7e6047318f8bf6de7edff2d61a298d0bf5c840

  • SSDEEP

    98304:Nn1CVf+y/EFc7DvOUxlpq2JdnQ+O2M7hlXKUmkbtT2TMI:A/EqaUFqItO2M7PXKUmkbtT2T

Malware Config

Extracted

Family

babylonrat

C2

sandyclark255.hopto.org

Extracted

Family

darkcomet

Botnet

2020NOV1

C2

sandyclark255.hopto.org:35887

Mutex

DC_MUTEX-6XT818D

Attributes
  • InstallPath

    excelsl.exe

  • gencode

    n7asq0Dbu7D2

  • install

    true

  • offline_keylogger

    true

  • password

    hhhhhh

  • persistence

    true

  • reg_key

    office

Extracted

Family

asyncrat

Version

0.5.6A

C2

sandyclark255.hopto.org:6606

sandyclark255.hopto.org:8808

sandyclark255.hopto.org:7707

Mutex

adweqsds56332

Attributes
  • delay

    5

  • install

    true

  • install_file

    prndrvest.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Babylon RAT

    Babylon RAT is remote access trojan written in C++.

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Modifies WinLogon for persistence 2 TTPs 3 IoCs
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Async RAT payload 2 IoCs
  • Disables RegEdit via registry modification 1 IoCs
  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 15 IoCs
  • Loads dropped DLL 14 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Drops file in Windows directory 1 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.

  • Delays execution with timeout.exe 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\42f972925508a82236e8533567487761.exe
    "C:\Users\Admin\AppData\Local\Temp\42f972925508a82236e8533567487761.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2164
    • C:\Users\Admin\AppData\Local\Temp\3qQiam71tgOVoEGv.exe
      "C:\Users\Admin\AppData\Local\Temp\3qQiam71tgOVoEGv.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2432
      • C:\Windows\svehosts.exe
        "C:\Windows\svehosts.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        PID:1320
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\Windows\svehosts.exe" "svehosts.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:2528
    • C:\Users\Admin\AppData\Local\Temp\e8QZZ2ngPyt6kbM0.exe
      "C:\Users\Admin\AppData\Local\Temp\e8QZZ2ngPyt6kbM0.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2980
      • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
        "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2936
        • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
          "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe" 2936
          4⤵
          • Modifies WinLogon for persistence
          • Executes dropped EXE
          • Loads dropped DLL
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1900
          • C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe
            "C:\Users\Admin\AppData\Local\Temp\RJCisDErBR6WU7D5\svbhost.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of AdjustPrivilegeToken
            PID:2364
    • C:\Users\Admin\AppData\Local\Temp\0pczn1xhOsgbkvY0.exe
      "C:\Users\Admin\AppData\Local\Temp\0pczn1xhOsgbkvY0.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2996
      • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
        "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
        3⤵
        • Executes dropped EXE
        PID:1952
      • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
        "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
        3⤵
        • Modifies WinLogon for persistence
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1896
        • C:\Windows\SysWOW64\notepad.exe
          notepad
          4⤵
            PID:1668
          • C:\Users\Admin\Documents\excelsl.exe
            "C:\Users\Admin\Documents\excelsl.exe"
            4⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of SetThreadContext
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2556
            • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
              "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
              5⤵
              • Executes dropped EXE
              PID:2200
            • C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe
              "C:\Users\Admin\AppData\Local\Temp\heCYMLXIPI2fpGWa\svuhost.exe"
              5⤵
              • Disables RegEdit via registry modification
              • Executes dropped EXE
              • Adds Run key to start application
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of SetWindowsHookEx
              PID:1624
              • C:\Windows\SysWOW64\notepad.exe
                notepad
                6⤵
                  PID:2216
        • C:\Users\Admin\AppData\Local\Temp\L08UzTaVXvf6ItGn.exe
          "C:\Users\Admin\AppData\Local\Temp\L08UzTaVXvf6ItGn.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2704
          • C:\Windows\SysWOW64\schtasks.exe
            "C:\Windows\System32\schtasks.exe" /create /f /sc ONLOGON /RL HIGHEST /tn "'prndrvest"' /tr "'C:\Users\Admin\AppData\Roaming\prndrvest.exe"'
            3⤵
            • Scheduled Task/Job: Scheduled Task
            PID:2428
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpCC63.tmp.bat""
            3⤵
            • Loads dropped DLL
            PID:2304
            • C:\Windows\SysWOW64\timeout.exe
              timeout 3
              4⤵
              • Delays execution with timeout.exe
              PID:1104
            • C:\Users\Admin\AppData\Roaming\prndrvest.exe
              "C:\Users\Admin\AppData\Roaming\prndrvest.exe"
              4⤵
              • Executes dropped EXE
              • Suspicious behavior: EnumeratesProcesses
              PID:752
        • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
          "C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe"
          2⤵
          • Executes dropped EXE
          PID:2896

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Execution

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Persistence

      Boot or Logon Autostart Execution

      2
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Winlogon Helper DLL

      1
      T1547.004

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Event Triggered Execution

      1
      T1546

      Netsh Helper DLL

      1
      T1546.007

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Privilege Escalation

      Boot or Logon Autostart Execution

      2
      T1547

      Registry Run Keys / Startup Folder

      1
      T1547.001

      Winlogon Helper DLL

      1
      T1547.004

      Create or Modify System Process

      1
      T1543

      Windows Service

      1
      T1543.003

      Event Triggered Execution

      1
      T1546

      Netsh Helper DLL

      1
      T1546.007

      Scheduled Task/Job

      1
      T1053

      Scheduled Task

      1
      T1053.005

      Defense Evasion

      Modify Registry

      2
      T1112

      Impair Defenses

      1
      T1562

      Disable or Modify System Firewall

      1
      T1562.004

      Discovery

      System Information Discovery

      1
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\6ax0Yc8236t6EQMa\svthost.exe
        Filesize

        3.7MB

        MD5

        9d2a888ca79e1ff3820882ea1d88d574

        SHA1

        112c38d80bf2c0d48256249bbabe906b834b1f66

        SHA256

        8b5b38085f12d51393ed5a481a554074d3c482d53ecd917f2f5dffdf3d2ee138

        SHA512

        17a9f74ecf9f118ed0252fa0bc6ce0f9758a4dc75f238cae304def9c37cd94623818dd4aef38826642ff9e549b7e6047318f8bf6de7edff2d61a298d0bf5c840

      • C:\Users\Admin\AppData\Local\Temp\L08UzTaVXvf6ItGn.exe
        Filesize

        376KB

        MD5

        590acb5fa6b5c3001ebce3d67242aac4

        SHA1

        5df39906dc4e60f01b95783fc55af6128402d611

        SHA256

        7bf9b7b25cf1671e5640f8eeac149f9a4e8c9f6c63415f4bd61bccb10ddf8509

        SHA512

        4ac518140ee666491132525853f2843357d622fe351e59cca7ce3b054d665f77ad8987adddd601e6b1afe6903222d77cf3c41a5aa69e8caf0dcdc7656a43e9ba

      • C:\Users\Admin\AppData\Local\Temp\e8QZZ2ngPyt6kbM0.exe
        Filesize

        801KB

        MD5

        9133c2a5ebf3e25aceae5a001ca6f279

        SHA1

        319f911282f3cded94de3730fa0abd5dec8f14be

        SHA256

        7c3615c405f7a11f1c217b9ecd1000cf60a37bca7da1f2d12da21cc110b16b4d

        SHA512

        1d1af3fcfcdba41874e3eb3e2571d25798acfd49b63b7fcf9393be2f59c9ba77e563da1717abcd6445fc52fd6d948bf4c0dd5978a192c8e32e0a9279fd0be33e

      • C:\Users\Admin\AppData\Local\Temp\tmpCC63.tmp.bat
        Filesize

        153B

        MD5

        e7543a740c05c601c4c4d36f907d9c91

        SHA1

        aff4b029ad689f2fbb0a865f3df5ee4ee45e7f57

        SHA256

        3085e03cce6f8010ef4abe0212926b7d707f45b3738b4a78e23502f8d1be48a5

        SHA512

        33a7a1e3546dbc98e8e757a6d9c0f6b6ceef3719337683d441b33dabf1b0172b7fdf112fb23ca8473ac1fb8cfb5612fb6b743651c44f1770734337c8521d6fba

      • C:\Users\Admin\AppData\Roaming\prndrvest.exe
        Filesize

        41.5MB

        MD5

        ecc3467baf02279cb0f42dd40430306a

        SHA1

        f654891854ebc89e18c9e158702fc18006f0bcb0

        SHA256

        e7a21b8bb15f59043fa1353d32314c1ad9a007c3a8ecc03a4a706680cb7a325c

        SHA512

        4d2af13664fb3dd8ab39e7ad8fee03437c073bc8dbb5ebd19836def52ac80e02b3fd2f740bda406cc9b1022d6c9220d046d2e94ffb9cd3b63452335087343369

      • \Users\Admin\AppData\Local\Temp\0pczn1xhOsgbkvY0.exe
        Filesize

        742KB

        MD5

        3e804917c454ca31c1cbd602682542b7

        SHA1

        1df3e81b9d879e21af299f5478051b98f3cb7739

        SHA256

        f9f7b6f7b8c5068f9e29a5b50afca609018c50ffd61929e1b78124f5381868f1

        SHA512

        28e59bc545179c2503771b93d947930bd56f8ebd0402ecbb398335c5ac89f40051e93fbfd84d35b8c625b253bb4cafea6a5360914b8d54d1bc121977f1eadbaf

      • \Users\Admin\AppData\Local\Temp\3qQiam71tgOVoEGv.exe
        Filesize

        472KB

        MD5

        2819e45588024ba76f248a39d3e232ba

        SHA1

        08a797b87ecfbee682ce14d872177dae1a5a46a2

        SHA256

        b82b23059e398b39f183ec833d498200029033b0fd3a138b6c2064a6fa3c4b93

        SHA512

        a38b58768daf58fa56ca7b8c37826d57e9dbfcd2dedf120a5b7b9aa36c4e10f64ec07c11dbd77b5861236c005fe5d453523911906dd77a302634408f1d78503a

      • memory/752-281-0x0000000000E80000-0x0000000000EE4000-memory.dmp
        Filesize

        400KB

      • memory/752-284-0x00000000005C0000-0x00000000005D2000-memory.dmp
        Filesize

        72KB

      • memory/1668-123-0x0000000000080000-0x0000000000081000-memory.dmp
        Filesize

        4KB

      • memory/1896-98-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-109-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-113-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/1896-106-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-114-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-118-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-104-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-102-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-100-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/1896-96-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2164-2-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2164-56-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2164-0-0x0000000074951000-0x0000000074952000-memory.dmp
        Filesize

        4KB

      • memory/2164-1-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2432-187-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2432-19-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2432-20-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2704-158-0x00000000002A0000-0x00000000002C4000-memory.dmp
        Filesize

        144KB

      • memory/2704-58-0x0000000000FD0000-0x0000000001034000-memory.dmp
        Filesize

        400KB

      • memory/2704-160-0x00000000002C0000-0x00000000002D2000-memory.dmp
        Filesize

        72KB

      • memory/2896-53-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/2896-39-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-37-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-54-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-51-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-49-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-47-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-45-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-43-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2896-41-0x0000000000400000-0x00000000004BA000-memory.dmp
        Filesize

        744KB

      • memory/2936-75-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-90-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-80-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-65-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-78-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-108-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-77-0x000000007EFDE000-0x000000007EFDF000-memory.dmp
        Filesize

        4KB

      • memory/2936-82-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-69-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-73-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-112-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-71-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-115-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2936-67-0x0000000000400000-0x00000000004C2000-memory.dmp
        Filesize

        776KB

      • memory/2980-277-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB

      • memory/2980-33-0x0000000074950000-0x0000000074EFB000-memory.dmp
        Filesize

        5.7MB