Analysis
- max time kernel
35s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260130-en - resource tags
arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
22/04/2026, 17:44
Static task
static1
Behavioral task
behavioral1
Sample
x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe
Resource
win10v2004-20260130-en
Behavioral task
behavioral2
Sample
x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe
Resource
win11-20260130-en
General
- Target x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe
- Size 1.7MB
- Sample260422-wbbemac16n
- SHA256 7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe
- MD5 c009165a973a2dba961fd8d648ab6bda
- SHA1 464cd07fe64c3624ed09a536d747945866529f19
- SHA512 83585677b8a1ea50409b3be2ecf3447fd0ccb8f554fd85b66d4b16e9ac30bbdb562fd0c7a993139542fc735c5263644bece2566a0fd91f1c97e1dc769364e719
- SSDEEP 49152:IkQTA3IwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3sc8:IatuRD9JdOR4m+lmY/4rx8c8
- TLSH T19D8523097181D373C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe, \"C:\\Program Files\\Windows Sidebar\\Gadgets\\csrss.exe\"" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - Process spawned unexpected child process 15 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
description pid pid_target Process procid_target Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3236 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2996 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 5088 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4832 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3936 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1940 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4516 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4916 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1620 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3912 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 4404 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 2684 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 3348 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1484 4668 schtasks.exe 88 Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process 1860 4668 schtasks.exe 88 - UAC bypass 3 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - 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.
pid Process 5132 powershell.exe 4336 powershell.exe 2712 powershell.exe 960 powershell.exe 2480 powershell.exe 1096 powershell.exe 876 powershell.exe 5148 powershell.exe 4344 powershell.exe 3768 powershell.exe 4836 powershell.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-745935970-1373868228-562466063-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows Sidebar\\Gadgets\\csrss.exe\"" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Program Files\\Windows Sidebar\\Gadgets\\csrss.exe\"" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - Checks whether UAC is enabled 1 TTPs 2 IoCs
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - SmartAssembly .NET packer 5 IoCs
Detects SmartAssembly .NET packer.
resource yara_rule behavioral1/memory/3704-5233-0x0000000006220000-0x0000000006230000-memory.dmp SmartAssembly behavioral1/memory/3704-5237-0x0000000006720000-0x000000000672A000-memory.dmp SmartAssembly behavioral1/memory/3704-5242-0x0000000006800000-0x000000000680C000-memory.dmp SmartAssembly behavioral1/memory/3704-5243-0x0000000006830000-0x000000000683A000-memory.dmp SmartAssembly behavioral1/memory/3704-5245-0x0000000007120000-0x000000000712C000-memory.dmp SmartAssembly - Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files\Windows Sidebar\Gadgets\csrss.exe x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe File opened for modification C:\Program Files\Windows Sidebar\Gadgets\csrss.exe x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe File created C:\Program Files\Windows Sidebar\Gadgets\886983d96e3d3e x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 15 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3936 schtasks.exe 4916 schtasks.exe 3348 schtasks.exe 3236 schtasks.exe 4832 schtasks.exe 4516 schtasks.exe 3912 schtasks.exe 1484 schtasks.exe 1860 schtasks.exe 2996 schtasks.exe 4404 schtasks.exe 2684 schtasks.exe 5088 schtasks.exe 1940 schtasks.exe 1620 schtasks.exe - Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 3704 x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe 3704 x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe 3704 x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3704 x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - System policy modification 1 TTPs 3 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\ConsentPromptBehaviorAdmin = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\PromptOnSecureDesktop = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe - 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
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C:\Users\Admin\AppData\Local\Temp\x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe"C:\Users\Admin\AppData\Local\Temp\x7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe.exe"1⤵
- Modifies WinLogon for persistence
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- System policy modification
PID:3704 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:4836
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/$Recycle.Bin/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:876
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Documents and Settings/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:1096
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/PerfLogs/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:2480
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:960
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Program Files (x86)/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:2712
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/ProgramData/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:4336
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Recovery/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:3768
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/System Volume Information/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:4344
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Users/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:5132
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:/Windows/'2⤵
- Command and Scripting Interpreter: PowerShell
PID:5148
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\VMycoP0vGx.bat"2⤵PID:6600
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C:\Windows\SysWOW64\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵PID:5552
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:24⤵PID:6468
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Sidebar\Gadgets\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3236
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files\Windows Sidebar\Gadgets\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2996
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 12 /tr "'C:\Program Files\Windows Sidebar\Gadgets\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:5088
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 13 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4832
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3936
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRunO" /sc MINUTE /mo 10 /tr "'C:\Recovery\WindowsRE\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1940
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwmd" /sc MINUTE /mo 11 /tr "'C:\Program Files\Mozilla Firefox\defaults\dwm.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4516
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwm" /sc ONLOGON /tr "'C:\Program Files\Mozilla Firefox\defaults\dwm.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4916
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "dwmd" /sc MINUTE /mo 10 /tr "'C:\Program Files\Mozilla Firefox\defaults\dwm.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1620
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "servicess" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\services.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3912
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\services.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:4404
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "servicess" /sc MINUTE /mo 10 /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\services.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:2684
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 6 /tr "'C:\Users\Default User\fontdrvhost.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:3348
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\Users\Default User\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1484
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 8 /tr "'C:\Users\Default User\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
PID:1860
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C:\Program Files\Windows Sidebar\Gadgets\csrss.exe"C:\Program Files\Windows Sidebar\Gadgets\csrss.exe"1⤵PID:3788
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C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\services.exe"C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\services.exe"1⤵PID:1828
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C:\Program Files\Mozilla Firefox\defaults\dwm.exe"C:\Program Files\Mozilla Firefox\defaults\dwm.exe"1⤵PID:3584
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C:\Recovery\WindowsRE\OfficeClickToRun.exe"C:\Recovery\WindowsRE\OfficeClickToRun.exe"1⤵PID:692
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C:\Users\Default User\fontdrvhost.exe"C:\Users\Default User\fontdrvhost.exe"1⤵PID:4380
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
4Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Users\Admin\AppData\Local\Temp\VMycoP0vGx.bat
- Size 202B
- SHA256 70f040e20662806264f66be26167f9e8eab40d6cd1065e76e69ea48dd6e81e81
- MD5 c48e7f0853b536e2e913af9e312de67c
- SHA1 82894e6fbd84dc5cd02975d0fa3a789d707e6574
- SHA512 2339753f8dfa3951ec29559b60d06378bf2cf80c3a4f419c0b4f062fbb1973fe2f099e94db9987092fed7fe4187453a2a521feec1074f6603b82eb4b6d7288a5
- TLSH T10FD02203A001C61A0403090318EB018DA0932C0A75C06E6016C6086C2A8B86AB2DB3C5
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_2hnpllyq.v4o.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Default\fontdrvhost.exe
- Size 1.7MB
- SHA256 7f08eaef4f99c76f0968d9f93cb3353edf9c6f630975215ec1957f5fe7c755fe
- MD5 c009165a973a2dba961fd8d648ab6bda
- SHA1 464cd07fe64c3624ed09a536d747945866529f19
- SHA512 83585677b8a1ea50409b3be2ecf3447fd0ccb8f554fd85b66d4b16e9ac30bbdb562fd0c7a993139542fc735c5263644bece2566a0fd91f1c97e1dc769364e719
- SSDEEP 49152:IkQTA3IwMtuvMDVPG4JdXeR4aT6LQ+d3mY/4qxTsx3sc8:IatuRD9JdOR4m+lmY/4rx8c8
- TLSH T19D8523097181D373C2FB003085C58FB55A2566224F7566EFFBE89B662F202F4BB661C9
- MD5 SHA1 SHA512 SSDEEP TLSH