Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
08-01-2025 04:23
General
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Target
JaffaCakes118_8afb3959eaf496cd8a73a3d91e25e22c.exe
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Size
10.1MB
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MD5
8afb3959eaf496cd8a73a3d91e25e22c
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SHA1
44681a9d143cfd48ad3c7fe37e5b4c8f8378b22b
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SHA256
75ec6658e2172199d78c87db3de2f85c1f49d229703e12d1725a0913ca4fe213
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SHA512
0ec5a1fe87bd1cb5cdd5f686156d88313a57eba46b73f435dc98de5d07bf87d8cf86eb8640b2bdd0314c43bff27bf079708897c0ca5477bbbb2f2cc9405de0d1
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SSDEEP
24576:W+O4GptFtiU9SsYm1oO9teGnlcZ/uIO0EdZX0usIW6fgtixy4s+8BIbT19h8OChG:x5o9Y+Iu0u+YoAgO9kK4XyWDAyH6e
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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Modifies WinLogon for persistence 2 TTPs 4 IoCs
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Process spawned unexpected child process 4 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
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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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Adds Run key to start application 2 TTPs 8 IoCs
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Drops file in System32 directory 5 IoCs
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Drops file in Windows 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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Modifies registry class 1 IoCs
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Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 6 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_8afb3959eaf496cd8a73a3d91e25e22c.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_8afb3959eaf496cd8a73a3d91e25e22c.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows 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\OlajzPKrte.bat"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵
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C:\Windows\System32\Windows.CloudStore.Schema.DesktopShell\fontdrvhost.exe"C:\Windows\System32\Windows.CloudStore.Schema.DesktopShell\fontdrvhost.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Windows\System32\wbem\WmiApSrv\unsecapp.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 "fontdrvhost" /sc ONLOGON /tr "'C:\Windows\System32\Windows.CloudStore.Schema.DesktopShell\fontdrvhost.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 "sysmon" /sc ONLOGON /tr "'C:\Windows\RemotePackages\RemoteDesktops\sysmon.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 "TextInputHost" /sc ONLOGON /tr "'C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\InputApp\TextInputHost\TextInputHost.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
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
238B
MD540d574575c5d9700c2a793faa2281a3d
SHA137c936e74ce26212dd06f889268a4f8e4f89c1cc
SHA256f8e6f57e2aa5085672206c5d966442a6c4b7674d7031404deba65a717b69aedd
SHA512626c42bca3a010d5af90f1ac74b7415d1ac1f64e66618ba211c154cb367132264aa2d12de143f16321847e673b276c853fcd2344550b28b99f1556eb3b6b11e8
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Filesize
10.1MB
MD58afb3959eaf496cd8a73a3d91e25e22c
SHA144681a9d143cfd48ad3c7fe37e5b4c8f8378b22b
SHA25675ec6658e2172199d78c87db3de2f85c1f49d229703e12d1725a0913ca4fe213
SHA5120ec5a1fe87bd1cb5cdd5f686156d88313a57eba46b73f435dc98de5d07bf87d8cf86eb8640b2bdd0314c43bff27bf079708897c0ca5477bbbb2f2cc9405de0d1
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Filesize
40KB
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Filesize
48KB
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Filesize
48KB
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Filesize
48KB
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Filesize
32KB
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Filesize
1.0MB
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Filesize
1.0MB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.2MB
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Filesize
8KB