Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
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submitted
18-01-2025 04:55
General
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Target
c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5.exe
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Size
737KB
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MD5
05f1f2214c8b7b660817c4849fdf5537
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SHA1
6af7aeb3078376bff17f06cd4c53993b31a48475
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SHA256
c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5
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SHA512
58f46b2840f2165d4b51cbb1d39146929587c7d95de9711e0dec11a9c44b446429a7a49bd0c68473e97cb0880f9fb80b0466c75ffccfa848b655af91689eec23
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SSDEEP
12288:y+Tn9t4LxmlM9Itv2/JJMA+UpW3Ari4VVyZC0+1cqwNZ6:y+TnQmxv2BJMA+U3iE0nqY6
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 6 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
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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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Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 1 IoCs
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Scheduled Task/Job: Scheduled Task 1 TTPs 6 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 behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of WriteProcessMemory 8 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\c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5.exe"C:\Users\Admin\AppData\Local\Temp\c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5.exe"1⤵
- Checks computer location settings
- 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\5kKw0rfdaz.bat"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\chcp.comchcp 650013⤵
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C:\Windows\system32\w32tm.exew32tm /stripchart /computer:localhost /period:5 /dataonly /samples:23⤵
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C:\Users\Admin\AppData\Local\MsWebView2\unsecapp.exe"C:\Users\Admin\AppData\Local\MsWebView2\unsecapp.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "unsecappu" /sc MINUTE /mo 9 /tr "'C:\Users\Admin\AppData\Local\MsWebView2\unsecapp.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "unsecapp" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\MsWebView2\unsecapp.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 "unsecappu" /sc MINUTE /mo 6 /tr "'C:\Users\Admin\AppData\Local\MsWebView2\unsecapp.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 "c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5c" /sc MINUTE /mo 5 /tr "'C:\Users\Admin\AppData\Local\Temp\c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5.exe'" /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
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C:\Windows\system32\schtasks.exeschtasks.exe /create /tn "c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5" /sc ONLOGON /tr "'C:\Users\Admin\AppData\Local\Temp\c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5.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 "c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5c" /sc MINUTE /mo 12 /tr "'C:\Users\Admin\AppData\Local\Temp\c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5.exe'" /rl HIGHEST /f1⤵
- Process spawned unexpected child process
- Scheduled Task/Job: Scheduled Task
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
737KB
MD505f1f2214c8b7b660817c4849fdf5537
SHA16af7aeb3078376bff17f06cd4c53993b31a48475
SHA256c4abef44de234ff0d02add4b4a79084c2e1362944059a7207e621432e395b9a5
SHA51258f46b2840f2165d4b51cbb1d39146929587c7d95de9711e0dec11a9c44b446429a7a49bd0c68473e97cb0880f9fb80b0466c75ffccfa848b655af91689eec23
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Filesize
228B
MD5ecd96550c4148bd51b4a557fdb311b65
SHA1489f9d4bfc78ed0265299f9f7b08df3bd4415871
SHA2569122fdcd0f573636b83ac83cde8e4d3446d627be3448cb9e001e47961f81f58a
SHA512262faf9ede0462b000fce5b7e765a963c4898e18474c06a6d231918eaa202c4f3ee03295a2062c3de118155ea7f0e311c927370b53cd99dc0c75fe61eed1e650
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Filesize
320KB
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Filesize
56KB
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Filesize
112KB
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Filesize
10.8MB
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Filesize
8KB
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Filesize
96KB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
10.8MB
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Filesize
760KB