Analysis
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max time kernel
148s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
05-12-2024 15:05
General
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Target
48B90C11912E9C7147D86C55D1E2CC94.exe
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Size
2.4MB
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MD5
48b90c11912e9c7147d86c55d1e2cc94
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SHA1
ffc71fb727607913aa176c85f75972f1ac6fda7c
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SHA256
bb0f507a87420a0597cdc40917ea1ba9c9576d3e750db3f9b66802b19550c9e7
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SHA512
175b7358de82827ca29ecef204fa2451ba44e3e3fc373f65bc40d2d888d43a5d0bc778a78f714e47369b8d9a5b37faa4106e912bb53b13791714d1c7773431f8
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SSDEEP
24576:WCihq6FXaYuCw7sULqPyZwSxIshnWIjm7vZAjX+ez87TkQPI1QOmYNnNQ671:VihHsYIlwSx9WkiLekTk1FN
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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DCRat payload 2 IoCs
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE 1 IoCs
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Drops file in Windows directory 3 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs
Adversaries may check for Internet connectivity on compromised systems.
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Modifies registry class 1 IoCs
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Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 8 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\48B90C11912E9C7147D86C55D1E2CC94.exe"C:\Users\Admin\AppData\Local\Temp\48B90C11912E9C7147D86C55D1E2CC94.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\5TFU6x2H8i.bat"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\PING.EXEping -n 10 localhost3⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
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C:\Windows\PolicyDefinitions\it-IT\lsass.exe"C:\Windows\PolicyDefinitions\it-IT\lsass.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.4MB
MD548b90c11912e9c7147d86c55d1e2cc94
SHA1ffc71fb727607913aa176c85f75972f1ac6fda7c
SHA256bb0f507a87420a0597cdc40917ea1ba9c9576d3e750db3f9b66802b19550c9e7
SHA512175b7358de82827ca29ecef204fa2451ba44e3e3fc373f65bc40d2d888d43a5d0bc778a78f714e47369b8d9a5b37faa4106e912bb53b13791714d1c7773431f8
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Filesize
172B
MD59a8cb6533b090b011562fa86bb689229
SHA1a41516d4b55e08a6cb0fe6cee760af328b3fc2e7
SHA256fddf54af15daac888851b4f6536457d66435a6d5f46d305365aebd76762439ed
SHA5124a4097b7e98c78518cad96c8891fe4dd676fabe5eaef6f491be7cf1f2920b548c95ed7cc5f3d1d3a093520c5742436992b5d20dd0b055b54b647982e6d794c6a
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Filesize
88KB
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Filesize
56KB
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Filesize
10.8MB
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Filesize
72KB
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Filesize
112KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
320KB
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Filesize
96KB
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Filesize
64KB
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Filesize
10.8MB
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Filesize
64KB
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Filesize
56KB
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Filesize
72KB
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Filesize
64KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
152KB
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Filesize
64KB
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Filesize
10.8MB
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Filesize
56KB
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Filesize
5.2MB
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Filesize
64KB
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Filesize
64KB
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Filesize
360KB
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Filesize
56KB
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Filesize
64KB
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Filesize
56KB
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Filesize
96KB
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Filesize
48KB
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Filesize
312KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
2.5MB
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Filesize
1.7MB