Analysis

  • max time kernel
    144s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 04:57

General

  • Target

    1610d005e2af505e573a49eecd7dadb7.exe

  • Size

    1.3MB

  • MD5

    1610d005e2af505e573a49eecd7dadb7

  • SHA1

    a1ddc7111c710191d364cfba6943d8be87d4f454

  • SHA256

    0f0009550ad8a696b79efaddb21f8ce26236c5c302c5159e0af3d7fe75b57fd3

  • SHA512

    5bd3f7ca3359e0fbe8e6b6d2ff9f007cdc2c19325c2bc24194814fe2d72fef32104d1739a6f37f4ca94a3779ee1715ec25f50e8c4dc8bac8e8397813b73feda8

  • SSDEEP

    24576:xALTck+Rs8xdbtVhrETeQ35YaUccQEt5bSCi03FAx:xAnc1xQTeQ1ULi0

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 54 IoCs

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

  • DCRat payload 2 IoCs

    Detects payload of DCRat, commonly dropped by NSIS installers.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 2 IoCs
  • Drops file in Program Files directory 12 IoCs
  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 54 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 32 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 2 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\1610d005e2af505e573a49eecd7dadb7.exe
    "C:\Users\Admin\AppData\Local\Temp\1610d005e2af505e573a49eecd7dadb7.exe"
    1⤵
    • Checks computer location settings
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:856
    • C:\Users\Admin\Searches\sysmon.exe
      "C:\Users\Admin\Searches\sysmon.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      PID:2268
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 9 /tr "'C:\Users\Default User\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2268
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Users\Default User\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4312
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 10 /tr "'C:\Users\Default User\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:392
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Defender\unsecapp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2176
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\unsecapp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 9 /tr "'C:\Program Files (x86)\Windows Defender\unsecapp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:8
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 13 /tr "'C:\Users\All Users\Microsoft OneDrive\setup\SppExtComObj.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2596
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Users\All Users\Microsoft OneDrive\setup\SppExtComObj.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1172
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 9 /tr "'C:\Users\All Users\Microsoft OneDrive\setup\SppExtComObj.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3728
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\upfc.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:400
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "upfc" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\upfc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2672
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "upfcu" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Common Files\Adobe\ARM\1.0\upfc.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:436
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 5 /tr "'C:\Windows\es-ES\dwm.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1836
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Windows\es-ES\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4640
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dwmd" /sc MINUTE /mo 13 /tr "'C:\Windows\es-ES\dwm.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1516
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1648
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1732
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4432
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 7 /tr "'C:\Windows\ShellExperiences\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3272
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Windows\ShellExperiences\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4928
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 6 /tr "'C:\Windows\ShellExperiences\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4480
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 11 /tr "'C:\Users\Public\AccountPictures\backgroundTaskHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3712
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Users\Public\AccountPictures\backgroundTaskHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4520
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 10 /tr "'C:\Users\Public\AccountPictures\backgroundTaskHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3276
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 6 /tr "'C:\Windows\Speech\msedge.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1668
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedge" /sc ONLOGON /tr "'C:\Windows\Speech\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3232
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "msedgem" /sc MINUTE /mo 13 /tr "'C:\Windows\Speech\msedge.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2700
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Program Files\Mozilla Firefox\defaults\pref\backgroundTaskHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1736
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHost" /sc ONLOGON /tr "'C:\Program Files\Mozilla Firefox\defaults\pref\backgroundTaskHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1628
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "backgroundTaskHostb" /sc MINUTE /mo 14 /tr "'C:\Program Files\Mozilla Firefox\defaults\pref\backgroundTaskHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1716
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\Program Files\Microsoft Office\Office16\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:5104
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office\Office16\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3096
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Program Files\Microsoft Office\Office16\fontdrvhost.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 "csrssc" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:60
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1400
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:836
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\StartMenuExperienceHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1112
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Multimedia Platform\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3588
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Multimedia Platform\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2904
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 13 /tr "'C:\Users\Admin\Searches\sysmon.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1048
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmon" /sc ONLOGON /tr "'C:\Users\Admin\Searches\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3036
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "sysmons" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\Searches\sysmon.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1524
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 12 /tr "'C:\Program Files\MsEdgeCrashpad\fontdrvhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2616
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Program Files\MsEdgeCrashpad\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1444
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\Program Files\MsEdgeCrashpad\fontdrvhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4652
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1610d005e2af505e573a49eecd7dadb71" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\1610d005e2af505e573a49eecd7dadb7.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1464
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1610d005e2af505e573a49eecd7dadb7" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\1610d005e2af505e573a49eecd7dadb7.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4676
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "1610d005e2af505e573a49eecd7dadb71" /sc MINUTE /mo 7 /tr "'C:\Recovery\WindowsRE\1610d005e2af505e573a49eecd7dadb7.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2584
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Windows\apppatch\en-US\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2772
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\apppatch\en-US\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4340
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 11 /tr "'C:\Windows\apppatch\en-US\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1788
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 8 /tr "'C:\Windows\System32\F12\it-IT\smss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1680
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Windows\System32\F12\it-IT\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:5084
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "smsss" /sc MINUTE /mo 13 /tr "'C:\Windows\System32\F12\it-IT\smss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:508
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4324,i,13879737908471496610,15335851594401413307,262144 --variations-seed-version --mojo-platform-channel-handle=1324 /prefetch:8
    1⤵
      PID:2388

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Scheduled Task/Job

    1
    T1053

    Credential Access

    Unsecured Credentials

    1
    T1552

    Credentials In Files

    1
    T1552.001

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\es-ES\dwm.exe
      Filesize

      1.3MB

      MD5

      1610d005e2af505e573a49eecd7dadb7

      SHA1

      a1ddc7111c710191d364cfba6943d8be87d4f454

      SHA256

      0f0009550ad8a696b79efaddb21f8ce26236c5c302c5159e0af3d7fe75b57fd3

      SHA512

      5bd3f7ca3359e0fbe8e6b6d2ff9f007cdc2c19325c2bc24194814fe2d72fef32104d1739a6f37f4ca94a3779ee1715ec25f50e8c4dc8bac8e8397813b73feda8

    • memory/856-3-0x0000000002BB0000-0x0000000002BCC000-memory.dmp
      Filesize

      112KB

    • memory/856-2-0x00007FF842BE0000-0x00007FF8436A1000-memory.dmp
      Filesize

      10.8MB

    • memory/856-0-0x00007FF842BE3000-0x00007FF842BE5000-memory.dmp
      Filesize

      8KB

    • memory/856-6-0x00000000012F0000-0x0000000001302000-memory.dmp
      Filesize

      72KB

    • memory/856-5-0x0000000002BD0000-0x0000000002BE6000-memory.dmp
      Filesize

      88KB

    • memory/856-4-0x000000001B520000-0x000000001B570000-memory.dmp
      Filesize

      320KB

    • memory/856-7-0x000000001C290000-0x000000001C7B8000-memory.dmp
      Filesize

      5.2MB

    • memory/856-8-0x000000001B4F0000-0x000000001B4FE000-memory.dmp
      Filesize

      56KB

    • memory/856-1-0x0000000000840000-0x0000000000990000-memory.dmp
      Filesize

      1.3MB

    • memory/856-56-0x00007FF842BE0000-0x00007FF8436A1000-memory.dmp
      Filesize

      10.8MB

    • memory/2268-57-0x0000000002A40000-0x0000000002A52000-memory.dmp
      Filesize

      72KB

    • memory/2268-58-0x000000001BA90000-0x000000001BAAE000-memory.dmp
      Filesize

      120KB