Analysis
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max time kernel
119s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
08-01-2025 22:31
General
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Target
JaffaCakes118_b0464a68d3df95ccb9023830b6a2037c.exe
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Size
1.9MB
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MD5
b0464a68d3df95ccb9023830b6a2037c
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SHA1
96a229ed8d9b3d26086fa10c9675203b4f5f4626
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SHA256
11271bb4ead40385c854e9a19eef0d64578639066195361a5e4818d172f5bbfb
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SHA512
02a80deec6b8089da6102c9763f39bb6d3d0bbee340a44f04f13226e4d8c69ae699076f7ef6eeeeb9e705bc1b7fe8c02399682ef52754ecfec09f4799345179f
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SSDEEP
49152:HN54VMGOhLmPkO4koPyVu5eAEfgPwNqsruC:v0vEf8u5eAmFJ
Malware Config
Signatures
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DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Dcrat family
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DCRat payload 6 IoCs
Detects payload of DCRat, commonly dropped by NSIS installers.
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
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Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Executes dropped EXE 1 IoCs
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Identifies Wine through registry keys 2 TTPs 2 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL 2 IoCs
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Adds Run key to start application 2 TTPs 8 IoCs
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Drops file in System32 directory 4 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Drops file in Program Files directory 4 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
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Scheduled Task/Job: Scheduled Task 1 TTPs 8 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 6 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 4 IoCs
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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\JaffaCakes118_b0464a68d3df95ccb9023830b6a2037c.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_b0464a68d3df95ccb9023830b6a2037c.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Documents and Settings\csrss.exe"C:\Documents and Settings\csrss.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Documents and Settings\csrss.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "lsm" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\SDK\lsm.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "smss" /sc ONLOGON /tr "'C:\Users\Default\Local Settings\smss.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\Windows\System32\dskquota\services.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\PerfLogs\Admin\WmiPrvSE.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "winlogon" /sc ONLOGON /tr "'C:\Windows\System32\RASMM\winlogon.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "audiodg" /sc ONLOGON /tr "'C:\Program Files (x86)\Microsoft Visual Studio 8\Common7\IDE\audiodg.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\ProgramData\Microsoft\User Account Pictures\Default Pictures\csrss.exe'" /rl HIGHEST /f1⤵
- Scheduled Task/Job: Scheduled Task
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1.9MB
MD5b0464a68d3df95ccb9023830b6a2037c
SHA196a229ed8d9b3d26086fa10c9675203b4f5f4626
SHA25611271bb4ead40385c854e9a19eef0d64578639066195361a5e4818d172f5bbfb
SHA51202a80deec6b8089da6102c9763f39bb6d3d0bbee340a44f04f13226e4d8c69ae699076f7ef6eeeeb9e705bc1b7fe8c02399682ef52754ecfec09f4799345179f
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
5.0MB
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Filesize
56KB
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Filesize
32KB
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Filesize
40KB
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Filesize
48KB
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Filesize
5.0MB