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Analysis
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max time kernel
58s -
max time network
51s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
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submitted
24/01/2025, 10:24 UTC
General
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Target
ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a.exe
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Size
783KB
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MD5
2b92024fad384b0fcc4e1934dd6a1fcf
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SHA1
9adc4985037273d3734f78c53959cedf5d798de1
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SHA256
ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a
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SHA512
a6b155f4198cccbff59c73f013359550007f38ff8b71bd58a7480870212559fe8af06f63418083d01deba390dacc5b5126fe1549642ceda4ea46d7d754f41503
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SSDEEP
12288:mqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqK:m+OQbpbgsFdAyQvzSqaq8q
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 8 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
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UAC bypass 3 TTPs 6 IoCs
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DCRat payload 5 IoCs
Detects payload of DCRat, commonly dropped by NSIS installers.
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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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Checks whether UAC is enabled 1 TTPs 4 IoCs
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Drops file in System32 directory 12 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 64 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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System policy modification 1 TTPs 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\ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a.exe"C:\Users\Admin\AppData\Local\Temp\ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a.exe"1⤵
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Users\All Users\Documents\WmiPrvSE.exe"C:\Users\All Users\Documents\WmiPrvSE.exe"2⤵
- UAC bypass
- Executes dropped EXE
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- System policy modification
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "WmiPrvSE" /sc ONLOGON /tr "'C:\Users\All Users\Documents\WmiPrvSE.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 "explorer" /sc ONLOGON /tr "'C:\Documents and Settings\explorer.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 "explorer" /sc ONLOGON /tr "'C:\ProgramData\Desktop\explorer.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 "ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\jusched\ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a.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 "csrss" /sc ONLOGON /tr "'C:\Windows\System32\synceng\csrss.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 "ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a" /sc ONLOGON /tr "'C:\PerfLogs\Admin\ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a.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 "sppsvc" /sc ONLOGON /tr "'C:\Windows\System32\NlsLexicons003e\sppsvc.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 "dllhost" /sc ONLOGON /tr "'C:\Windows\System32\NlsLexicons0007\dllhost.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
Network
- No results found
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92.63.192.30:80 -
92.63.192.30:80
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot 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
783KB
MD5c6a5f989b82aaa179ec9ed1b805e5aae
SHA1020af20b5b867d0c7e3a2f9e1b2bf5af4fa5330d
SHA25641b0aa445a90767b1ecbd815db610d0fc4722862c792edd321593694209d0691
SHA512ad42e34f61db78b1f857607e47f71ebca5295b805be783bc1b85c45fd7eaba2e0b9f44c2dcf7caee703c6296f1d15796d1434c4cdd6784f9b4db14a1c019d2ce
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Filesize
783KB
MD5ac99a77db79806d21390b127791bf2ee
SHA130404f041f6c97c4fd2e7315395407fb17a40f16
SHA256c5524e7d658dc28956ec6e2c2370314e6b01e5470fc97006bc64d72cd572940c
SHA5125f405a0e9d6df3b6c4263656016583a58dd53e17e3a9d07d1be88814078ce036aeb2a3d5aa610cc4eb82a7101ddc9d3f44d68cbcd3df95a8ec4be3e8e8a188a5
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Filesize
783KB
MD52b92024fad384b0fcc4e1934dd6a1fcf
SHA19adc4985037273d3734f78c53959cedf5d798de1
SHA256ec0a87ee5b90c3e832df1783ad84ce815699b9650af24d879012ed5a5d72459a
SHA512a6b155f4198cccbff59c73f013359550007f38ff8b71bd58a7480870212559fe8af06f63418083d01deba390dacc5b5126fe1549642ceda4ea46d7d754f41503
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
48KB
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Filesize
40KB
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Filesize
40KB
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
4KB
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Filesize
64KB
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Filesize
32KB
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Filesize
32KB
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Filesize
48KB
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Filesize
32KB
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Filesize
32KB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
32KB
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Filesize
4KB
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Filesize
9.9MB
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Filesize
9.9MB
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Filesize
808KB
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Filesize
9.9MB
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Filesize
808KB