Analysis
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max time kernel
120s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
06-01-2025 19:21
General
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Target
0480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c.exe
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Size
783KB
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MD5
e39abe06bfa435141d99d5547c996366
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SHA1
5f2af9015e99d82fba94ef42be04fe83fb06a8d3
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SHA256
0480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c
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SHA512
04742c9bb51f68326b64a02dd3f0c385b2666e12fc4384875196401855dd456e1d883c7e994d2f6a03954087bd005271530a3c1ff7b3fece0f3594f9810b5256
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SSDEEP
12288:GqnOYxdAgpoNeF91rg5iFdr0yQ9gYx+EIpakCYJRU7Q9bWoFzqK:G+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 9 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
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UAC bypass 3 TTPs 3 IoCs
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DCRat payload 3 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 9 IoCs
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Checks whether UAC is enabled 1 TTPs 2 IoCs
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Drops file in System32 directory 16 IoCs
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Drops file in Program Files directory 8 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 9 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 19 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 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\0480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c.exe"C:\Users\Admin\AppData\Local\Temp\0480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c.exe"1⤵
- UAC bypass
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in System32 directory
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\mfc42u\services.exe"C:\Windows\System32\mfc42u\services.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "csrss" /sc ONLOGON /tr "'C:\Windows\System32\bthserv\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 "lsass" /sc ONLOGON /tr "'C:\PerfLogs\Admin\lsass.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 "services" /sc ONLOGON /tr "'C:\Windows\System32\mfc42u\services.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:\Users\Default\Downloads\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 "spoolsv" /sc ONLOGON /tr "'C:\Program Files\DVD Maker\it-IT\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 "0480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\RD2F97\0480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c.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 "audiodg" /sc ONLOGON /tr "'C:\Program Files (x86)\MSBuild\Microsoft\Windows Workflow Foundation\v3.0\audiodg.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\winrm\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 "WmiPrvSE" /sc ONLOGON /tr "'C:\Windows\System32\wbem\ntevt\WmiPrvSE.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
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
MD5e39abe06bfa435141d99d5547c996366
SHA15f2af9015e99d82fba94ef42be04fe83fb06a8d3
SHA2560480cdb7227ce3c1130e172a6edbdbaa30c357a743c282350b04a749f3fb4c2c
SHA51204742c9bb51f68326b64a02dd3f0c385b2666e12fc4384875196401855dd456e1d883c7e994d2f6a03954087bd005271530a3c1ff7b3fece0f3594f9810b5256
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Filesize
808KB
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Filesize
32KB
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Filesize
32KB
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Filesize
32KB
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Filesize
64KB
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Filesize
32KB
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Filesize
40KB
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Filesize
48KB
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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
32KB
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Filesize
32KB
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Filesize
32KB
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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
48KB
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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
808KB
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Filesize
9.9MB