Analysis

  • max time kernel
    119s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
  • submitted
    29-07-2024 02:13

General

  • Target

    82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb.exe

  • Size

    1.1MB

  • MD5

    1a9c19cd373f9ce0642f18f6965521b3

  • SHA1

    64bc66f217964ab7310084cc9b2e4ef72ea7156b

  • SHA256

    82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb

  • SHA512

    3b68254d3425e45f2d28dbdf0507fe723ea4ef493c33707fb94ea23d30e59ad63c8ba30d7efc3102d88bda70d60ab3895f2e8dcdd9383260ef3807afd6cf2349

  • SSDEEP

    24576:10ybzboC40b/IwQSETTrn/BBhA/nJTbEHzsS/:10ykC40nEIdSzs

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 3 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 10 IoCs
  • Drops file in Windows directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 39 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 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\82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb.exe
    "C:\Users\Admin\AppData\Local\Temp\82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb.exe"
    1⤵
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3040
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\u5MeZyGQdN.bat"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\system32\w32tm.exe
        w32tm /stripchart /computer:localhost /period:5 /dataonly /samples:2
        3⤵
          PID:1660
        • C:\Program Files\Windows NT\Accessories\de-DE\wininit.exe
          "C:\Program Files\Windows NT\Accessories\de-DE\wininit.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:1744
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 14 /tr "'C:\Users\Public\Desktop\audiodg.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3056
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Users\Public\Desktop\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2808
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "audiodga" /sc MINUTE /mo 7 /tr "'C:\Users\Public\Desktop\audiodg.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2312
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft Sync Framework\Idle.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2684
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "Idle" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Sync Framework\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2712
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "IdleI" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\Microsoft Sync Framework\Idle.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2540
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 12 /tr "'C:\Users\Default User\System.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1720
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\Users\Default User\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2960
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "SystemS" /sc MINUTE /mo 14 /tr "'C:\Users\Default User\System.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2268
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb8" /sc MINUTE /mo 5 /tr "'C:\Windows\tracing\82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1072
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb" /sc ONLOGON /tr "'C:\Windows\tracing\82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1380
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb8" /sc MINUTE /mo 13 /tr "'C:\Windows\tracing\82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1188
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows NT\Accessories\de-DE\wininit.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2908
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Program Files\Windows NT\Accessories\de-DE\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2016
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 9 /tr "'C:\Program Files\Windows NT\Accessories\de-DE\wininit.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2324
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\lsass.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2732
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsass" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2868
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "lsassl" /sc MINUTE /mo 6 /tr "'C:\MSOCache\All Users\{90140000-001A-0409-0000-0000000FF1CE}-C\lsass.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2940
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1792
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2616
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Microsoft SQL Server Compact Edition\v3.5\Desktop\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1576
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Program Files\Windows Mail\it-IT\spoolsv.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2348
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Program Files\Windows Mail\it-IT\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1992
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 13 /tr "'C:\Program Files\Windows Mail\it-IT\spoolsv.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3064
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 11 /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\sppsvc.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2128
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvc" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2024
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "sppsvcs" /sc MINUTE /mo 10 /tr "'C:\MSOCache\All Users\{90140000-0116-0409-1000-0000000FF1CE}-C\sppsvc.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2012
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 5 /tr "'C:\Program Files\Windows Portable Devices\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2148
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Program Files\Windows Portable Devices\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2480
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Portable Devices\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1104
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 13 /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\WmiPrvSE.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2932
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1616
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "WmiPrvSEW" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-0019-0409-0000-0000000FF1CE}-C\WmiPrvSE.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1804
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 12 /tr "'C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\taskhost.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1100
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhost" /sc ONLOGON /tr "'C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:896
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "taskhostt" /sc MINUTE /mo 7 /tr "'C:\MSOCache\All Users\{90140000-0016-0409-0000-0000000FF1CE}-C\taskhost.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:956
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 13 /tr "'C:\Windows\ehome\de-DE\explorer.exe'" /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:1492
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorer" /sc ONLOGON /tr "'C:\Windows\ehome\de-DE\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:2880
    • C:\Windows\system32\schtasks.exe
      schtasks.exe /create /tn "explorere" /sc MINUTE /mo 5 /tr "'C:\Windows\ehome\de-DE\explorer.exe'" /rl HIGHEST /f
      1⤵
      • Process spawned unexpected child process
      • Scheduled Task/Job: Scheduled Task
      PID:3008

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Persistence

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Privilege Escalation

    Scheduled Task/Job

    1
    T1053

    Scheduled Task

    1
    T1053.005

    Discovery

    System Information Discovery

    1
    T1082

    Query Registry

    1
    T1012

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files\Windows NT\Accessories\de-DE\wininit.exe
      Filesize

      1.1MB

      MD5

      1a9c19cd373f9ce0642f18f6965521b3

      SHA1

      64bc66f217964ab7310084cc9b2e4ef72ea7156b

      SHA256

      82bea7c0254a8a0b675f8702eb3dafbbcc608bdb672738d159b33ae699a4d5bb

      SHA512

      3b68254d3425e45f2d28dbdf0507fe723ea4ef493c33707fb94ea23d30e59ad63c8ba30d7efc3102d88bda70d60ab3895f2e8dcdd9383260ef3807afd6cf2349

    • C:\Users\Admin\AppData\Local\Temp\u5MeZyGQdN.bat
      Filesize

      222B

      MD5

      388820d43e4fc6cc4fe9d3f9a850b9f5

      SHA1

      f73375c7dbbf45aa4b0c08a084c45ef8ddaae114

      SHA256

      cb4014dd5b4dd39cac4bb5bf6bc411b62c2fddab174d593f4dd4f89563bfa7bf

      SHA512

      9b8a56c627fc48c706eb11a0bbb280d03c0a30e5a36631f5858925877431497f9f93403a56d20cee1b2943f9ab418b899a294e0f559f600ee473a8b201296ece

    • memory/1744-39-0x0000000001110000-0x0000000001236000-memory.dmp
      Filesize

      1.1MB

    • memory/3040-0-0x000007FEF5E83000-0x000007FEF5E84000-memory.dmp
      Filesize

      4KB

    • memory/3040-1-0x0000000000390000-0x00000000004B6000-memory.dmp
      Filesize

      1.1MB

    • memory/3040-2-0x000007FEF5E80000-0x000007FEF686C000-memory.dmp
      Filesize

      9.9MB

    • memory/3040-3-0x0000000000150000-0x000000000016C000-memory.dmp
      Filesize

      112KB

    • memory/3040-4-0x0000000000170000-0x0000000000186000-memory.dmp
      Filesize

      88KB

    • memory/3040-36-0x000007FEF5E80000-0x000007FEF686C000-memory.dmp
      Filesize

      9.9MB