Analysis

  • max time kernel
    120s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    14/02/2024, 09:41

General

  • Target

    2059b153136de16e58e27a8549dac1b5.exe

  • Size

    1.1MB

  • MD5

    2059b153136de16e58e27a8549dac1b5

  • SHA1

    47f7fdbee2c963e63b52cac18bc5b9bed9b7c10c

  • SHA256

    326975832674627265c01a626a19ae8ff0a30fd7b7db9e17c098329730286f88

  • SHA512

    4c2fea8436618c98cae0de3f1cc99dd26de6f84472eba496e49328f9354d3d10adbbb58b6867e35a1047deadd2bf4a9622c7328b7ffc7d1a280bc590015fa50e

  • SSDEEP

    12288:URZ+IoG/n9IQxW3OBseUUT+tcYbDEq7n2lBvR0dWfExtTWmOfcziDi+CUF9q:u2G/nvxW3WieCDHWBvNCtbskUF9q

Score
10/10

Malware Config

Signatures

  • DcRat

    DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

  • Process spawned unexpected child process 39 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • DCRat payload 8 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 39 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2059b153136de16e58e27a8549dac1b5.exe
    "C:\Users\Admin\AppData\Local\Temp\2059b153136de16e58e27a8549dac1b5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2272
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\hypersurrogatesavesIntonet\nNwgCkzp4Tu.vbe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2656
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c ""C:\hypersurrogatesavesIntonet\XzEJPxdTk.bat" "
        3⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\hypersurrogatesavesIntonet\runtimesvc.exe
          "C:\hypersurrogatesavesIntonet\runtimesvc.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:2848
          • C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\Idle.exe
            "C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\Idle.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:2172
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 5 /tr "'C:\hypersurrogatesavesIntonet\audiodg.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2560
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\hypersurrogatesavesIntonet\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2596
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 14 /tr "'C:\hypersurrogatesavesIntonet\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2056
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2372
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2544
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:848
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 14 /tr "'C:\Program Files\Common Files\cmd.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2884
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Program Files\Common Files\cmd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2908
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 14 /tr "'C:\Program Files\Common Files\cmd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2912
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Windows\Logs\CBS\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2468
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Windows\Logs\CBS\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1520
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Windows\Logs\CBS\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1920
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\hypersurrogatesavesIntonet\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1376
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\hypersurrogatesavesIntonet\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1052
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\hypersurrogatesavesIntonet\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1688
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:524
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:680
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 9 /tr "'C:\MSOCache\All Users\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:692
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 9 /tr "'C:\Program Files\Java\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Java\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2632
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 14 /tr "'C:\Program Files\Java\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1904
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 10 /tr "'C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\cmd.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1348
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\cmd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:632
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "cmdc" /sc MINUTE /mo 10 /tr "'C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\cmd.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1764
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 8 /tr "'C:\MSOCache\All Users\audiodg.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2244
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\MSOCache\All Users\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2040
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\audiodg.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2964
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Users\Public\Documents\My Videos\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2660
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Users\Public\Documents\My Videos\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2120
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 7 /tr "'C:\Users\Public\Documents\My Videos\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2096
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 11 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\dwm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2404
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1964
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1012
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 6 /tr "'C:\Program Files\Windows Portable Devices\Idle.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2360
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1140
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Portable Devices\Idle.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:720
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1312
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1664
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-0115-0409-0000-0000000FF1CE}-C\1033\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1336

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Program Files\Common Files\cmd.exe

          Filesize

          827KB

          MD5

          ed66730e6ae871c628540ae1d707ffa4

          SHA1

          724a5d4a86e5af83df6c309fa4a5908a115f149d

          SHA256

          17431781b4d634c1a6f0e6265fdafcdf9eb122ad54f39a35a65ad0aca9a90767

          SHA512

          3260f29bd032a76fd4e36be67dafc0edaa57f4d39afbd673611064180b3340870757c867bc010531e98f39c384af5fdb1fe3bb4cd872918e8ca5bc11408bddb7

        • C:\Recovery\9064cc02-9ba8-11ee-8a7b-e6b52eba4e86\Idle.exe

          Filesize

          64KB

          MD5

          a40e818c1eacaf132e8e00ed6a26e75c

          SHA1

          628a975dc8048f303919f8ae741c44faabc5591e

          SHA256

          54aa4143898dfe6293f69f329eaf52b6c22969cc69cba1c971da51e7b53bfd4f

          SHA512

          2490db7d1cde7d7a97de16b511d3a032bc3948de6a2f828e456d7e1128bb5e0d49452559f282d51d78a888e3d7d0d6ed0c7247f889e92913f0e1ac99c387e306

        • C:\hypersurrogatesavesIntonet\XzEJPxdTk.bat

          Filesize

          46B

          MD5

          ccbd5a0fde012049bf4e8b28566ca30e

          SHA1

          8df48a4a6319201e65fcc50925d0eb9f505fa949

          SHA256

          dd75a7f5f37127d0dfbfb6fac014b6345e318ec09197b42a32930fe902a38bcd

          SHA512

          ee34c5e259c8593eee2730d5f2e263fde14f70c47404b7743fea15ced052817f98daea57e1bd46f6fd2a98f4a12f02a85f39402d112d46053d77692732510baf

        • C:\hypersurrogatesavesIntonet\nNwgCkzp4Tu.vbe

          Filesize

          212B

          MD5

          8671b76c7387f72afcf00a18a32c3cbd

          SHA1

          6e4d2251cfca5b7673e0419703aaef91c4329210

          SHA256

          b5d7aa554ff2815f7b664ec2b777944acef1438987876cb55183378059e18a32

          SHA512

          0c096f044ce9bc7f75a691ce5b51f30ed8fbf1d559ae5ce5c30a08d9f1a9060cefd56029829c82fbc7c0a296dddb41f02dd912aae3e38e0615e273bf601a3b48

        • C:\hypersurrogatesavesIntonet\runtimesvc.exe

          Filesize

          86KB

          MD5

          bc2eaa890050e5b0d3d8c123c5c6b625

          SHA1

          4258e9657128835e01eab505f46b3c927150b116

          SHA256

          bfa276981b833169eae7dac8b4af3729fd8f11e851400f2d1a106e2260e492d0

          SHA512

          e437ee2f458760102e2eada03c6e273365d6215a415f76bc3b4bfa881946554929a82d1bb729808daef9a2bf4673313d5b7d503095bc4416de18eb84c4900d75

        • \hypersurrogatesavesIntonet\runtimesvc.exe

          Filesize

          128KB

          MD5

          3ae9cf3e305d7427b4d243fbd32cdbf9

          SHA1

          137e25d82e13dc1921d4f161bf75dc458248c931

          SHA256

          ad4ba9a802469366f5ed209ddcdcc20156d16067af1777484aacfbffd5b39d51

          SHA512

          83233d7a78bb96527b720321a5b8db9896600420072f7c780ce8bb7b724485c8adacdbb12abf4aff6d0354df98b9d73c883fe55cc9aa4b2a30ee393cfd91e9f1

        • memory/2172-48-0x0000000000810000-0x00000000008E6000-memory.dmp

          Filesize

          856KB

        • memory/2172-49-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp

          Filesize

          9.9MB

        • memory/2172-50-0x000000001AF10000-0x000000001AF90000-memory.dmp

          Filesize

          512KB

        • memory/2172-52-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp

          Filesize

          9.9MB

        • memory/2172-53-0x000000001AF10000-0x000000001AF90000-memory.dmp

          Filesize

          512KB

        • memory/2848-15-0x000000001B220000-0x000000001B2A0000-memory.dmp

          Filesize

          512KB

        • memory/2848-14-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp

          Filesize

          9.9MB

        • memory/2848-13-0x0000000000920000-0x00000000009F6000-memory.dmp

          Filesize

          856KB

        • memory/2848-51-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp

          Filesize

          9.9MB