Analysis
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max time kernel
149s -
max time network
152s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
21-01-2023 19:03
Behavioral task
behavioral1
Sample
LoaderB.exe
Resource
win7-20221111-en
windows7-x64
6 signatures
150 seconds
Behavioral task
behavioral2
Sample
LoaderB.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
LoaderB.exe
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Size
1.1MB
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MD5
97fd39727f09d456c6e6e8a3fb9b4028
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SHA1
f27399f10573bb39ebc472b7fdfa649e48494dfd
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SHA256
29b84cbec0c92620955afd16358fb786df50fdc6dc024399cc9d2f5d8f40f38a
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SHA512
275a115ce4bb2662658a6d6ad77a3a83005d66d9d773726581ead4f38bf45b9e6c5d98501cfc0ec3c2623b04635856ca303ee89c7ec114ab01268741928f9a46
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SSDEEP
24576:qGlFYoq77FED1/LTeXGVFkz/EaQON6uZvRbXiPoUg:HFf+6DNiwaT08XiPoUg
Score
10/10
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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Processes:
resource yara_rule behavioral1/memory/2040-56-0x0000000000090000-0x00000000000E6000-memory.dmp dcrat behavioral1/memory/2040-61-0x00000000000E083E-mapping.dmp dcrat behavioral1/memory/2040-62-0x0000000000090000-0x00000000000E6000-memory.dmp dcrat behavioral1/memory/2040-63-0x0000000000090000-0x00000000000E6000-memory.dmp dcrat -
Suspicious use of SetThreadContext 1 IoCs
Processes:
LoaderB.exedescription pid process target process PID 1284 set thread context of 2040 1284 LoaderB.exe AppLaunch.exe -
Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
AppLaunch.exepid process 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe 2040 AppLaunch.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
AppLaunch.exedescription pid process Token: SeDebugPrivilege 2040 AppLaunch.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
LoaderB.exedescription pid process target process PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe PID 1284 wrote to memory of 2040 1284 LoaderB.exe AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\LoaderB.exe"C:\Users\Admin\AppData\Local\Temp\LoaderB.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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memory/2040-54-0x0000000000090000-0x00000000000E6000-memory.dmpFilesize
344KB
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memory/2040-56-0x0000000000090000-0x00000000000E6000-memory.dmpFilesize
344KB
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memory/2040-61-0x00000000000E083E-mapping.dmp
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memory/2040-62-0x0000000000090000-0x00000000000E6000-memory.dmpFilesize
344KB
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memory/2040-63-0x0000000000090000-0x00000000000E6000-memory.dmpFilesize
344KB
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memory/2040-64-0x0000000075531000-0x0000000075533000-memory.dmpFilesize
8KB