Analysis
- max time kernel
103s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20250610-en - resource tags
- submitted
03/07/2025, 05:46
General
- Target F389E77863DB01F7B67B49B40421BAD8.exe
- Size 4.0MB
- Sample250703-ggexnsvmw5
- SHA256 ef02e566039ef3d0c719f5f72f14a8a3e63da53ffa12931cd88b2e8a6a15d934
Malware Config
Signatures
- DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
- Dcrat family
- Executes dropped EXE 2 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops file in Program Files directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- Modifies registry class 2 IoCs
- Runs ping.exe 1 TTPs 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 16 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\F389E77863DB01F7B67B49B40421BAD8.exe"C:\Users\Admin\AppData\Local\Temp\F389E77863DB01F7B67B49B40421BAD8.exe"1⤵
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\agentDll\8bZd1NevM53y4uUnXYv9PoryFgNtXdP18PBIgE9pnlxKI6UOkG9O.vbe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\agentDll\p3GdfaTWoPhwnhWq.bat" "3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
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C:\agentDll\msHypercomponent.exe"C:\agentDll/msHypercomponent.exe"4⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\tGULaY6uPc.bat"5⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650016⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost6⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\6eb8e248df559290f6d7924f088a79\services.exe"C:\6eb8e248df559290f6d7924f088a79\services.exe"6⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v16
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
tGULaY6uPc.bat
8bZd1NevM53y4uUnXYv9PoryFgNtXdP18PBIgE9pnlxKI6UOkG9O.vbe
msHypercomponent.exe
p3GdfaTWoPhwnhWq.bat
memory/796-37-0x000000001C360000-0x000000001C372000-memory.dmp
memory/796-43-0x000000001C400000-0x000000001C416000-memory.dmp
memory/796-18-0x00000000033A0000-0x00000000033BC000-memory.dmp
memory/796-19-0x000000001C390000-0x000000001C3E0000-memory.dmp
memory/796-21-0x0000000003350000-0x0000000003360000-memory.dmp
memory/796-23-0x000000001BEC0000-0x000000001BED8000-memory.dmp
memory/796-25-0x0000000003360000-0x0000000003370000-memory.dmp
memory/796-27-0x00000000033C0000-0x00000000033D0000-memory.dmp
memory/796-29-0x00000000033D0000-0x00000000033DE000-memory.dmp
memory/796-31-0x000000001BFF0000-0x000000001BFFE000-memory.dmp
memory/796-33-0x000000001C000000-0x000000001C00C000-memory.dmp
memory/796-35-0x000000001C010000-0x000000001C01E000-memory.dmp
memory/796-14-0x0000000003370000-0x0000000003396000-memory.dmp
memory/796-39-0x000000001C020000-0x000000001C02C000-memory.dmp
memory/796-41-0x000000001C340000-0x000000001C350000-memory.dmp
memory/796-16-0x0000000003340000-0x000000000334E000-memory.dmp
memory/796-45-0x000000001C420000-0x000000001C432000-memory.dmp
memory/796-46-0x000000001C970000-0x000000001CE98000-memory.dmp
memory/796-48-0x000000001C350000-0x000000001C35E000-memory.dmp
memory/796-50-0x000000001C380000-0x000000001C38C000-memory.dmp
memory/796-52-0x000000001C3E0000-0x000000001C3F0000-memory.dmp
memory/796-54-0x000000001C3F0000-0x000000001C400000-memory.dmp
memory/796-56-0x000000001C4A0000-0x000000001C4FA000-memory.dmp
memory/796-58-0x000000001C440000-0x000000001C44E000-memory.dmp
memory/796-60-0x000000001C450000-0x000000001C460000-memory.dmp
memory/796-62-0x000000001C460000-0x000000001C46E000-memory.dmp
memory/796-64-0x000000001C700000-0x000000001C718000-memory.dmp
memory/796-66-0x000000001C470000-0x000000001C47C000-memory.dmp
memory/796-68-0x000000001C770000-0x000000001C7BE000-memory.dmp
memory/796-12-0x0000000000E00000-0x00000000011BC000-memory.dmp