Overview

overview

10

Static

static

10

180102f846...8d.exe

windows7-x64

10

180102f846...8d.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    93s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/05/2024, 20:25

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General

  • Target
    180102f846d452748fb47e8fddbf5ad057ce709e6d2b894ec3dbdea499dec98d.exe
  • Size 1.9MB
  • Sample240527-y7jf8aab44
  • SHA256 180102f846d452748fb47e8fddbf5ad057ce709e6d2b894ec3dbdea499dec98d
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
dcratexecutioninfostealerpersistencerat

Malware Config

Signatures

  • DcRat

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

    ratinfostealerdcrat
  • Modifies WinLogon for persistence 2 TTPs 10 IoCs
    persistence
  • Process spawned unexpected child process 30 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.

    rat
  • Command and Scripting Interpreter: PowerShell 1 TTPs 11 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 20 IoCs
    persistence
  • Drops file in Program Files directory 24 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 30 IoCs

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

    persistence
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 13 IoCs
  • Suspicious use of WriteProcessMemory 24 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.

    persistence

Processes

  • C:\Users\Admin\AppData\Local\Temp\180102f846d452748fb47e8fddbf5ad057ce709e6d2b894ec3dbdea499dec98d.exe
    "C:\Users\Admin\AppData\Local\Temp\180102f846d452748fb47e8fddbf5ad057ce709e6d2b894ec3dbdea499dec98d.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4136
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\180102f846d452748fb47e8fddbf5ad057ce709e6d2b894ec3dbdea499dec98d.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3096
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Windows\Resources\Ease of Access Themes\wininit.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1676
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\Default User\SearchApp.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4080
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Common Files\microsoft shared\OfficeClickToRun.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1760
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Defender\it-IT\csrss.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2284
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Microsoft.NET\RedistList\SppExtComObj.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4332
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Windows Photo Viewer\fr-FR\TextInputHost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2960
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files\Microsoft Office 15\ClientX64\StartMenuExperienceHost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4636
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Program Files (x86)\Windows Media Player\de-DE\dllhost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4308
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Recovery\WindowsRE\spoolsv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4400
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell" -Command Add-MpPreference -ExclusionPath 'C:\Users\All Users\SoftwareDistribution\spoolsv.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3700
    • C:\Program Files\Windows Photo Viewer\fr-FR\TextInputHost.exe
      "C:\Program Files\Windows Photo Viewer\fr-FR\TextInputHost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4608
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 8 /tr "'C:\Windows\Resources\Ease of Access Themes\wininit.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3576
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininit" /sc ONLOGON /tr "'C:\Windows\Resources\Ease of Access Themes\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3528
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "wininitw" /sc MINUTE /mo 6 /tr "'C:\Windows\Resources\Ease of Access Themes\wininit.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4692
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\SearchApp.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2620
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Users\Default User\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2476
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SearchAppS" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\SearchApp.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3160
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 12 /tr "'C:\Program Files\Common Files\microsoft shared\OfficeClickToRun.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2012
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Common Files\microsoft shared\OfficeClickToRun.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 "OfficeClickToRunO" /sc MINUTE /mo 10 /tr "'C:\Program Files\Common Files\microsoft shared\OfficeClickToRun.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4044
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 6 /tr "'C:\Program Files (x86)\Windows Defender\it-IT\csrss.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1532
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Defender\it-IT\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4428
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "csrssc" /sc MINUTE /mo 8 /tr "'C:\Program Files (x86)\Windows Defender\it-IT\csrss.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2016
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\SppExtComObj.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:464
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObj" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\SppExtComObj.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4300
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "SppExtComObjS" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Microsoft.NET\RedistList\SppExtComObj.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3476
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Photo Viewer\fr-FR\TextInputHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:764
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHost" /sc ONLOGON /tr "'C:\Program Files\Windows Photo Viewer\fr-FR\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3200
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "TextInputHostT" /sc MINUTE /mo 7 /tr "'C:\Program Files\Windows Photo Viewer\fr-FR\TextInputHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1420
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 8 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\StartMenuExperienceHost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2168
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files\Microsoft Office 15\ClientX64\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:2944
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "StartMenuExperienceHostS" /sc MINUTE /mo 12 /tr "'C:\Program Files\Microsoft Office 15\ClientX64\StartMenuExperienceHost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3384
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 14 /tr "'C:\Program Files (x86)\Windows Media Player\de-DE\dllhost.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:3712
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Media Player\de-DE\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1880
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "dllhostd" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Windows Media Player\de-DE\dllhost.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:712
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 11 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4756
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4120
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 8 /tr "'C:\Recovery\WindowsRE\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:1372
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsvs" /sc MINUTE /mo 12 /tr "'C:\Users\All Users\SoftwareDistribution\spoolsv.exe'" /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4608
  • C:\Windows\system32\schtasks.exe
    schtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Users\All Users\SoftwareDistribution\spoolsv.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 "spoolsvs" /sc MINUTE /mo 5 /tr "'C:\Users\All Users\SoftwareDistribution\spoolsv.exe'" /rl HIGHEST /f
    1⤵
    • Process spawned unexpected child process
    • Creates scheduled task(s)
    PID:4040

Network

        MITRE ATT&CK Enterprise v15

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        Downloads

        SppExtComObj.exe
        • Path C:\Program Files (x86)\Microsoft.NET\RedistList\SppExtComObj.exe
        • Size 1.9MB
        • SHA256 180102f846d452748fb47e8fddbf5ad057ce709e6d2b894ec3dbdea499dec98d
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        spoolsv.exe
        • Path C:\Recovery\WindowsRE\spoolsv.exe
        • Size 1.9MB
        • SHA256 d6933c2fecc80d0cc0dde7eca32d2628ed81b0bb0108d61200986b37add23e00
        • MD5 SHA1 SHA512 SSDEEP
        Submit Download

        powershell.exe.log
        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 2KB
        • SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 cce65b73cdfe9304bcd5207913e8b60fb69faa20cd3b684f2b0343b755b99438
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 bf5e284e8f95122bf75ead61c7e2b40f55c96742b05330b5b1cb7915991df13b
        • MD5 SHA1 SHA512
        Submit Download

        StartupProfileData-NonInteractive
        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 944B
        • SHA256 986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05
        • MD5 SHA1 SHA512
        Submit Download

        __PSScriptPolicyTest_cj5ollmv.4to.ps1
        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cj5ollmv.4to.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512
        Submit Download

        memory/4080-165-0x000002473D870000-0x000002473D892000-memory.dmp
        Download

        memory/4136-9-0x000000001B720000-0x000000001B730000-memory.dmp
        Download

        memory/4136-10-0x000000001B730000-0x000000001B73C000-memory.dmp
        Download

        memory/4136-12-0x000000001C320000-0x000000001C848000-memory.dmp
        Download

        memory/4136-14-0x000000001BDF0000-0x000000001BDFC000-memory.dmp
        Download

        memory/4136-13-0x000000001B780000-0x000000001B78C000-memory.dmp
        Download

        memory/4136-17-0x000000001BF20000-0x000000001BF2E000-memory.dmp
        Download

        memory/4136-20-0x000000001C090000-0x000000001C09C000-memory.dmp
        Download

        memory/4136-21-0x000000001C0A0000-0x000000001C0AA000-memory.dmp
        Download

        memory/4136-19-0x000000001C080000-0x000000001C08E000-memory.dmp
        Download

        memory/4136-23-0x00007FFD8DBE0000-0x00007FFD8E6A1000-memory.dmp
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        memory/4136-22-0x000000001C0B0000-0x000000001C0BC000-memory.dmp
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        memory/4136-18-0x000000001C030000-0x000000001C038000-memory.dmp
        Download

        memory/4136-26-0x00007FFD8DBE0000-0x00007FFD8E6A1000-memory.dmp
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        memory/4136-11-0x000000001B740000-0x000000001B752000-memory.dmp
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        memory/4136-16-0x000000001BF00000-0x000000001BF0C000-memory.dmp
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        memory/4136-15-0x000000001BF10000-0x000000001BF18000-memory.dmp
        Download

        memory/4136-0-0x00007FFD8DBE3000-0x00007FFD8DBE5000-memory.dmp
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        memory/4136-8-0x000000001B700000-0x000000001B716000-memory.dmp
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        memory/4136-6-0x000000001BDA0000-0x000000001BDF0000-memory.dmp
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        memory/4136-276-0x00007FFD8DBE0000-0x00007FFD8E6A1000-memory.dmp
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        memory/4136-7-0x000000001B6F0000-0x000000001B700000-memory.dmp
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        memory/4136-4-0x0000000002BC0000-0x0000000002BC8000-memory.dmp
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        memory/4136-5-0x0000000002CE0000-0x0000000002CFC000-memory.dmp
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        memory/4136-1-0x00000000008B0000-0x0000000000AAA000-memory.dmp
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        memory/4136-3-0x0000000002BB0000-0x0000000002BBE000-memory.dmp
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        memory/4136-2-0x00007FFD8DBE0000-0x00007FFD8E6A1000-memory.dmp
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        memory/4608-277-0x0000000002460000-0x0000000002472000-memory.dmp
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