Analysis
- max time kernel
127s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
31/03/2024, 08:15
General
- Target Minecraft.exe
- Size 1.1MB
- Sample240331-j5kh6sge81
- SHA256 d90e56489af6b2b4b051fcbdb07def1ff558a59619fb862429c77f113f12cadc
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 12 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 3 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- Drops file in Program Files directory 2 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 12 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Modifies registry class 1 IoCs
- Suspicious behavior: EnumeratesProcesses 10 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 10 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
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C:\Users\Admin\AppData\Local\Temp\Minecraft.exe"C:\Users\Admin\AppData\Local\Temp\Minecraft.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\portref\dmw0crYAWRpAcq.vbe"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\portref\nxI8X.bat" "3⤵
- Suspicious use of WriteProcessMemory
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C:\portref\containerComponent.exe"C:\portref\containerComponent.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Program Files (x86)\Common Files\Oracle\Java\javapath\csrss.exe"C:\Program Files (x86)\Common Files\Oracle\Java\javapath\csrss.exe"5⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 11 /tr "'C:\odt\RuntimeBroker.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\odt\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBrokerR" /sc MINUTE /mo 7 /tr "'C:\odt\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\portref\fontdrvhost.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhost" /sc ONLOGON /tr "'C:\portref\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "fontdrvhostf" /sc MINUTE /mo 9 /tr "'C:\portref\fontdrvhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "cmdc" /sc MINUTE /mo 12 /tr "'C:\portref\cmd.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "cmd" /sc ONLOGON /tr "'C:\portref\cmd.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "cmdc" /sc MINUTE /mo 7 /tr "'C:\portref\cmd.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 5 /tr "'C:\Program Files (x86)\Common Files\Oracle\Java\javapath\csrss.exe'" /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Program Files (x86)\Common Files\Oracle\Java\javapath\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrssc" /sc MINUTE /mo 13 /tr "'C:\Program Files (x86)\Common Files\Oracle\Java\javapath\csrss.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
containerComponent.exe
dmw0crYAWRpAcq.vbe
nxI8X.bat
memory/3000-35-0x00007FF9037E0000-0x00007FF9042A1000-memory.dmp
memory/3000-37-0x00007FF9037E0000-0x00007FF9042A1000-memory.dmp
memory/3188-12-0x0000000000740000-0x0000000000820000-memory.dmp
memory/3188-13-0x00007FF9037E0000-0x00007FF9042A1000-memory.dmp
memory/3188-14-0x0000000002AB0000-0x0000000002AC0000-memory.dmp
memory/3188-15-0x0000000001030000-0x000000000103A000-memory.dmp
memory/3188-36-0x00007FF9037E0000-0x00007FF9042A1000-memory.dmp