Analysis
-
max time kernel
93s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
-
submitted
10-01-2025 09:54
General
-
Target
JaffaCakes118_e15640ee50e585dc2d22e8034af222cb.exe
-
Size
2.3MB
-
MD5
e15640ee50e585dc2d22e8034af222cb
-
SHA1
ae603bf050d70b779414bf2860ed6874fadecdeb
-
SHA256
046bf975b725c82f7bb4b76cca785b0fb740b9d006c660cd96bc6ce7b70287d1
-
SHA512
cac1d6eee85eebce728be7038cfffb2fc020013b425bd1413924ebe712b51ab02faa6be2d077a35b106a563bf9b1aecbd53b60604d2c6bb614b089399cb4ce38
-
SSDEEP
12288:5qnODPqBVA4VzeVeMvmw2b2iaNn0f7IF45i5ZwMr+FngnRtyS37WfGSindZTJiC6:5+O4GJvx75OgnRUSLHdFNz5kfe5f
Malware Config
Signatures
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
-
Dcrat family
-
Modifies WinLogon for persistence 2 TTPs 5 IoCs
-
Process spawned unexpected child process 5 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
-
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE 1 IoCs
-
Adds Run key to start application 2 TTPs 10 IoCs
-
Drops file in System32 directory 4 IoCs
-
Drops file in Program Files directory 4 IoCs
-
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Modifies registry class 1 IoCs
-
Scheduled Task/Job: Scheduled Task 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
-
Suspicious behavior: EnumeratesProcesses 64 IoCs
-
Suspicious use of AdjustPrivilegeToken 2 IoCs
-
Suspicious use of WriteProcessMemory 6 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
-
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e15640ee50e585dc2d22e8034af222cb.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_e15640ee50e585dc2d22e8034af222cb.exe"1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Kn1Dq6ErOe.bat"2⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵
-
-
C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\SearchApp.exe"C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\SearchApp.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "JaffaCakes118_e15640ee50e585dc2d22e8034af222cb" /sc ONLOGON /tr "'C:\ProgramData\Mozilla-1de4eec8-1241-4177-a864-e594e8d1fb38\updates\308046B0AF4A39CB\JaffaCakes118_e15640ee50e585dc2d22e8034af222cb.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "SearchApp" /sc ONLOGON /tr "'C:\Program Files (x86)\Windows Sidebar\Shared Gadgets\SearchApp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\Windows\System32\ApplySettingsTemplateCatalog\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "OfficeClickToRun" /sc ONLOGON /tr "'C:\Program Files\Common Files\microsoft shared\ClickToRun\C2RINTL.es-es\OfficeClickToRun.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
-
C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Windows\System32\wbem\profileassociationprovider\unsecapp.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
-
Filesize
231B
MD5d739c65fe62516fc1ee9392539c126af
SHA1c35764bb008931b5d45483fba35ab254ad107ed5
SHA2564fa522b8b3b22f1c3204a7ab29451df4e0db4f3907f43e3f2599228382c97591
SHA5124664df29b2b6471ec7cc146a16b46b531a1fe4720e76bce9f61bb2c3db19d3d1a5526c37f4b63b9d1a3bdd4b68288d668f5e309ccb1f9b70a3baf4f058dc0ca7
-
Filesize
2.3MB
MD5e15640ee50e585dc2d22e8034af222cb
SHA1ae603bf050d70b779414bf2860ed6874fadecdeb
SHA256046bf975b725c82f7bb4b76cca785b0fb740b9d006c660cd96bc6ce7b70287d1
SHA512cac1d6eee85eebce728be7038cfffb2fc020013b425bd1413924ebe712b51ab02faa6be2d077a35b106a563bf9b1aecbd53b60604d2c6bb614b089399cb4ce38
-
Filesize
48KB
-
Filesize
48KB
-
Filesize
48KB
-
Filesize
32KB
-
Filesize
40KB
-
Filesize
8KB
-
Filesize
2.3MB
-
Filesize
10.8MB
-
Filesize
10.8MB