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Analysis
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max time kernel
79s -
max time network
131s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
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submitted
17/11/2023, 02:40
General
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Target
NEAS.1220f47113fd521c4bfeda028fdf1660.exe
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Size
783KB
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MD5
1220f47113fd521c4bfeda028fdf1660
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SHA1
f7979a95d15a206ec51a39a5ccbceafd22f2989e
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SHA256
e0a2d9c43e6b5ff3b4afd330f80170c9eda39ea9a326d78d5c247f22becfdbf5
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SHA512
19639401f4475c27182e6ee014f632a6c8d0eb438032745dae68df51b9dbcfe91bf648ec64c699478b49b3997d84528f208a3e9f88150e31c523e49bf1e70eeb
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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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Process spawned unexpected child process 5 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 2 IoCs
Detects payload of DCRat, commonly dropped by NSIS installers.
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Adds Run key to start application 2 TTPs 5 IoCs
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Checks whether UAC is enabled 1 TTPs 2 IoCs
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Drops file in System32 directory 3 IoCs
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Creates scheduled task(s) 1 TTPs 5 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 1 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\NEAS.1220f47113fd521c4bfeda028fdf1660.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.1220f47113fd521c4bfeda028fdf1660.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
- System policy modification
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\PerfLogs\unsecapp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Windows\System32\wbem\umpnpmgr\unsecapp.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "services" /sc ONLOGON /tr "'C:\ProgramData\Start Menu\services.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "NEAS.1220f47113fd521c4bfeda028fdf1660" /sc ONLOGON /tr "'C:\PerfLogs\NEAS.1220f47113fd521c4bfeda028fdf1660.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "RuntimeBroker" /sc ONLOGON /tr "'C:\ProgramData\Desktop\RuntimeBroker.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Creates scheduled task(s)
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
783KB
MD51220f47113fd521c4bfeda028fdf1660
SHA1f7979a95d15a206ec51a39a5ccbceafd22f2989e
SHA256e0a2d9c43e6b5ff3b4afd330f80170c9eda39ea9a326d78d5c247f22becfdbf5
SHA51219639401f4475c27182e6ee014f632a6c8d0eb438032745dae68df51b9dbcfe91bf648ec64c699478b49b3997d84528f208a3e9f88150e31c523e49bf1e70eeb
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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
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
64KB
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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
64KB
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Filesize
64KB
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Filesize
32KB
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Filesize
48KB
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Filesize
808KB
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Filesize
64KB
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Filesize
10.8MB
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Filesize
64KB
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Filesize
10.8MB