Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-1703_x64
  • resource
    win10-20220812-en
  • resource tags

    arch:x64arch:x86image:win10-20220812-enlocale:en-usos:windows10-1703-x64system
  • submitted
    03-02-2023 09:05

General

  • Target

    afdfb3d54332e114744d28d9a672d2bf442cbf3cd60cebf8c68fe85af2b4dcfe.exe

  • Size

    1.3MB

  • MD5

    5e1aa027a3a7efea8211014cc28a9d8b

  • SHA1

    462f75498619dc151b6a095c7d7d1d1068dc729e

  • SHA256

    afdfb3d54332e114744d28d9a672d2bf442cbf3cd60cebf8c68fe85af2b4dcfe

  • SHA512

    901f6706ac76005dee1b8e930592307157f504dc4bdb101bfa549238b6ba45df6ba43284604aff50525468eb543b677456b9ae440415e76b424db20e545856f1

  • SSDEEP

    24576:U2G/nvxW3Ww0t6TnzGmVBDh4+aknuRRZJND0gFJ4rD/IjC:UbA30GnzV/q+DnsXg

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 9 IoCs

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

  • DCRat payload 5 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Executes dropped EXE 2 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 9 IoCs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 26 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afdfb3d54332e114744d28d9a672d2bf442cbf3cd60cebf8c68fe85af2b4dcfe.exe
    "C:\Users\Admin\AppData\Local\Temp\afdfb3d54332e114744d28d9a672d2bf442cbf3cd60cebf8c68fe85af2b4dcfe.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:2204
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\providercommon\yTUdeXjbLOhnrN32dgrxVg.vbe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1936
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\providercommon\1zu9dW.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3048
        • C:\providercommon\DllCommonsvc.exe
          "C:\providercommon\DllCommonsvc.exe"
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:4728
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\providercommon\DllCommonsvc.exe'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3852
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Default\Music\winlogon.exe'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:3556
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\OfficeClickToRun.exe'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4952
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\en-US\wininit.exe'
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4156
          • C:\Users\Default\Music\winlogon.exe
            "C:\Users\Default\Music\winlogon.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:1796
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 6 /tr "'C:\Users\Default\Music\winlogon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4236
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Users\Default\Music\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4172
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "winlogonw" /sc MINUTE /mo 13 /tr "'C:\Users\Default\Music\winlogon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4176
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 5 /tr "'C:\Windows\en-US\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\en-US\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4000
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 7 /tr "'C:\Windows\en-US\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4148
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 6 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4124
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4252
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4196

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    3KB

    MD5

    ad5cd538ca58cb28ede39c108acb5785

    SHA1

    1ae910026f3dbe90ed025e9e96ead2b5399be877

    SHA256

    c9e6cb04d6c893458d5a7e12eb575cf97c3172f5e312b1f63a667cbbc5f0c033

    SHA512

    c066c5d9b276a68fa636647bb29aea05bfa2292217bc77f5324d9c1d93117772ee8277e1f7cff91ec8d6b7c05ca078f929cecfdbb09582522a9067f54740af13

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

    Filesize

    1KB

    MD5

    0b9e160a692e58671bf6856ee4df365f

    SHA1

    55adf742b05f003c6122041e634872899c878cd0

    SHA256

    f50df965c5ebdb7e8b82f5a0e22728e4f2cfebdd69b28f2f7efd1ba57563f8ad

    SHA512

    6fd5ebe7a4c376a1618d645c257dd6325d0d0de6acc602b56d3df9ae139cdc014f39bac176407c7b3a2ca5ee96798ac3e31f8b33e42e12e04aa5a3c58551b109

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

    Filesize

    1KB

    MD5

    0b9e160a692e58671bf6856ee4df365f

    SHA1

    55adf742b05f003c6122041e634872899c878cd0

    SHA256

    f50df965c5ebdb7e8b82f5a0e22728e4f2cfebdd69b28f2f7efd1ba57563f8ad

    SHA512

    6fd5ebe7a4c376a1618d645c257dd6325d0d0de6acc602b56d3df9ae139cdc014f39bac176407c7b3a2ca5ee96798ac3e31f8b33e42e12e04aa5a3c58551b109

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

    Filesize

    1KB

    MD5

    28a864a0f539edba4b408800ebe678c3

    SHA1

    43951cd3d86c51f20583bc06ec84f667df6473be

    SHA256

    9d60eb7432a29a9a7687a635ee8098c8c7b909e8098a31746d2c46b0257043e3

    SHA512

    4219634dbb3c8dbecc52e6049c460222d13180d067c0e8a53996d55d49013f0e71c82c33356e9c98a027379753a736b3979c7b170d2789ecefcbf3e118a4ffc9

  • C:\Users\Default\Music\winlogon.exe

    Filesize

    1.0MB

    MD5

    bd31e94b4143c4ce49c17d3af46bcad0

    SHA1

    f8c51ff3ff909531d9469d4ba1bbabae101853ff

    SHA256

    b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63

    SHA512

    f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394

  • C:\Users\Default\Music\winlogon.exe

    Filesize

    1.0MB

    MD5

    bd31e94b4143c4ce49c17d3af46bcad0

    SHA1

    f8c51ff3ff909531d9469d4ba1bbabae101853ff

    SHA256

    b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63

    SHA512

    f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394

  • C:\providercommon\1zu9dW.bat

    Filesize

    36B

    MD5

    6783c3ee07c7d151ceac57f1f9c8bed7

    SHA1

    17468f98f95bf504cc1f83c49e49a78526b3ea03

    SHA256

    8ab782f0f327a2021530e7230d3aee8abbecb7eed59482a3a46e78b9e3862322

    SHA512

    c6012d4bfac1ed14d0fd9f0eabd0e1c3d647b343db292a907b246271d52a4b7469c809db43910ddba2e8c5045f9cb3d24d0af62d363281e6cb8b39ee94a183e8

  • C:\providercommon\DllCommonsvc.exe

    Filesize

    1.0MB

    MD5

    bd31e94b4143c4ce49c17d3af46bcad0

    SHA1

    f8c51ff3ff909531d9469d4ba1bbabae101853ff

    SHA256

    b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63

    SHA512

    f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394

  • C:\providercommon\DllCommonsvc.exe

    Filesize

    1.0MB

    MD5

    bd31e94b4143c4ce49c17d3af46bcad0

    SHA1

    f8c51ff3ff909531d9469d4ba1bbabae101853ff

    SHA256

    b5199d3eb28e7de8ec4a5de66cb339a03d90b297e2292473badaab98ade15c63

    SHA512

    f96658bd19b672fd84038bd7e95c89e14f4e6f84e3ce9c6fe3216861a41203406148c6a809c2ab350d0d6c5919c845f619deb1fc9b1f1814dfce87e566bc2394

  • C:\providercommon\yTUdeXjbLOhnrN32dgrxVg.vbe

    Filesize

    197B

    MD5

    8088241160261560a02c84025d107592

    SHA1

    083121f7027557570994c9fc211df61730455bb5

    SHA256

    2072cc9a4a3b84d4c5178ab41c5588eea7d0103e3928e34d64f17bf97f3d1cc1

    SHA512

    20d9369dd359315848ea30144383a0bb479d86059fdbc3b3256ac84f998193512feb3b1799ab663619920c99fe7e0ebba33ada31a3855094b956fcd351c90478

  • memory/1796-316-0x0000000001860000-0x0000000001872000-memory.dmp

    Filesize

    72KB

  • memory/1936-186-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/1936-185-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-144-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-174-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-139-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-140-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-141-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-142-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-143-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-120-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-145-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-146-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-147-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-148-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-149-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-150-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-151-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-153-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-152-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-154-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-155-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-156-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-157-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-158-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-159-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-160-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-161-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-162-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-163-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-164-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-165-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-166-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-167-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-168-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-169-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-170-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-171-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-172-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-173-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-138-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-175-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-176-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-177-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-178-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-179-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-180-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-181-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-182-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-183-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-137-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-136-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-135-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-134-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-133-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-121-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-122-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-132-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-131-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-123-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-125-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-126-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-128-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-129-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/2204-130-0x0000000077540000-0x00000000776CE000-memory.dmp

    Filesize

    1.6MB

  • memory/3852-314-0x000002B1EC3C0000-0x000002B1EC3E2000-memory.dmp

    Filesize

    136KB

  • memory/3852-319-0x000002B1ECA00000-0x000002B1ECA76000-memory.dmp

    Filesize

    472KB

  • memory/4728-290-0x00000000018D0000-0x00000000018DC000-memory.dmp

    Filesize

    48KB

  • memory/4728-289-0x00000000018C0000-0x00000000018CC000-memory.dmp

    Filesize

    48KB

  • memory/4728-288-0x0000000001710000-0x000000000171C000-memory.dmp

    Filesize

    48KB

  • memory/4728-287-0x0000000001480000-0x0000000001492000-memory.dmp

    Filesize

    72KB

  • memory/4728-286-0x0000000000E70000-0x0000000000F80000-memory.dmp

    Filesize

    1.1MB