Analysis
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max time kernel
93s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
08-12-2024 11:02
General
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Target
d6b63143f76d9661a29075bdb205db9c_JaffaCakes118.exe
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Size
2.6MB
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MD5
d6b63143f76d9661a29075bdb205db9c
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SHA1
ade973a99a0fd7af906a7ee9c1262e26ce8a0570
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SHA256
7c6d4716d6d2274220e6424c2a7db27abda4f800276daea601364deda8c2382b
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SHA512
1e647a3510b6d2bf2ff351bf4bbe3a6735de5f3f2a2ce72e66706b057789e4ac279ffe0276db2148b1ed36e381d32065129c2738ad5a8c1dba140e75a926c38a
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SSDEEP
49152:us9anL1IVFg88eMQR0wJDJKe9GiEl/H876hFXw4wC4QfJjPpcBjYr2Ox:uYY1R8eQHJDJKejElU7EFXwzC4QdOjYN
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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Process spawned unexpected child process 6 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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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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Adds Run key to start application 2 TTPs 6 IoCs
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Drops file in System32 directory 5 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
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Drops file in Program Files directory 2 IoCs
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Drops file in Windows directory 2 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 6 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 12 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 3 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\d6b63143f76d9661a29075bdb205db9c_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\d6b63143f76d9661a29075bdb205db9c_JaffaCakes118.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Identifies Wine through registry keys
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\MSDvbNP\sihost.exe"C:\Windows\System32\MSDvbNP\sihost.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 "sihost" /sc ONLOGON /tr "'C:\Windows\System32\MSDvbNP\sihost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "spoolsv" /sc ONLOGON /tr "'C:\Windows\System32\usermgrcli\spoolsv.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "StartMenuExperienceHost" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Photo Viewer\it-IT\StartMenuExperienceHost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "System" /sc ONLOGON /tr "'C:\PerfLogs\System.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\Prefetch\ReadyBoot\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "d6b63143f76d9661a29075bdb205db9c_JaffaCakes118" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\dd_vcredistMSI33F3\d6b63143f76d9661a29075bdb205db9c_JaffaCakes118.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- 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
2.6MB
MD5d6b63143f76d9661a29075bdb205db9c
SHA1ade973a99a0fd7af906a7ee9c1262e26ce8a0570
SHA2567c6d4716d6d2274220e6424c2a7db27abda4f800276daea601364deda8c2382b
SHA5121e647a3510b6d2bf2ff351bf4bbe3a6735de5f3f2a2ce72e66706b057789e4ac279ffe0276db2148b1ed36e381d32065129c2738ad5a8c1dba140e75a926c38a
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Filesize
5.6MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
624KB
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Filesize
408KB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
5.7MB
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Filesize
32KB
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Filesize
5.7MB