General
- Target 09eef44272d050d8054cf913ed7bbf48.exe
- Size 3.2MB
- Sample240310-mxtnnabb81
- SHA256 87f220dad3bbeec6f39ed3e74eaa5b63f91924104b238fd33b4c5d49cc88f1ac
- MD5 09eef44272d050d8054cf913ed7bbf48
- SHA1 b4cd2add18e8445529b107d5ee847b89c70db333
- SHA512 867189c8cde505c22c377d4b68665c235e019b7127b3dbfdf4babdf8cd67985753898945d767c99122b3fe348b768e1e11bf3c340feedc0182c4c584a20ecf30
- SSDEEP 98304:Cc8eC24luyRsHatJTnXk8AkY9/7x0go6/e6BJ4:9kuyRsHSXk777oq3U
- MD5 SHA1 SHA512 SSDEEP
Behavioral task
behavioral1
Sample
09eef44272d050d8054cf913ed7bbf48.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
09eef44272d050d8054cf913ed7bbf48.exe
Resource
win10v2004-20240226-en
Malware Config
Targets
-
- Target 09eef44272d050d8054cf913ed7bbf48.exe
- Size 3.2MB
- SHA256 87f220dad3bbeec6f39ed3e74eaa5b63f91924104b238fd33b4c5d49cc88f1ac
- MD5 09eef44272d050d8054cf913ed7bbf48
- SHA1 b4cd2add18e8445529b107d5ee847b89c70db333
- SHA512 867189c8cde505c22c377d4b68665c235e019b7127b3dbfdf4babdf8cd67985753898945d767c99122b3fe348b768e1e11bf3c340feedc0182c4c584a20ecf30
- SSDEEP 98304:Cc8eC24luyRsHatJTnXk8AkY9/7x0go6/e6BJ4:9kuyRsHSXk777oq3U
- MD5 SHA1 SHA512 SSDEEP
-
DcRat
DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.
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Modifies WinLogon for persistence
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Process spawned unexpected child process
This typically indicates the parent process was compromised via an exploit or macro.
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Drops file in Drivers directory
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Manipulates Digital Signatures
Attackers can apply techniques such as modifying certain DLL exports to make their binary seem valid.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Deletes itself
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Executes dropped EXE
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Adds Run key to start application
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Drops desktop.ini file(s)
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Drops autorun.inf file
Malware can abuse Windows Autorun to spread further via attached volumes.
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Drops file in System32 directory
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Modifies termsrv.dll
Commonly used to allow simultaneous RDP sessions.
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
5Subvert Trust Controls
1Install Root Certificate
1