Resubmissions
14-02-2025 09:36
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250212-p4gnsa1req 8General
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Target
test.txt
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Size
18B
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Sample
250205-saetwasqgp
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MD5
5b3f97d48c8751bd031b7ea53545bdb6
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SHA1
88be3374c62f23406ec83bb11279f8423bd3f88d
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SHA256
d8fce9dd9c65ca143343f7711859a7cffc3c5e656a8b84108183fb769a12ed8b
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SHA512
ed2de1eec50310ced4bde8ef6ae4b7902920b007df7b6aeb200cfe9fcc0d36ef05af7526c4675be2feac52831668798d5fe3523175efad6f6549b30f30a0b5d6
Static task
static1
Behavioral task
behavioral1
Sample
test.txt
Resource
win11-20241007-en
Malware Config
Extracted
quasar
1.4.1
Office04
rights-regime.gl.at.ply.gg:51212
8c23d3e7-ae43-4572-a3d5-031a5b2fc0c8
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encryption_key
69EA6DACA02503818E2F78897AF719CE2EDBEB56
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Targets
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Target
test.txt
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Size
18B
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MD5
5b3f97d48c8751bd031b7ea53545bdb6
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SHA1
88be3374c62f23406ec83bb11279f8423bd3f88d
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SHA256
d8fce9dd9c65ca143343f7711859a7cffc3c5e656a8b84108183fb769a12ed8b
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SHA512
ed2de1eec50310ced4bde8ef6ae4b7902920b007df7b6aeb200cfe9fcc0d36ef05af7526c4675be2feac52831668798d5fe3523175efad6f6549b30f30a0b5d6
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Modifies WinLogon for persistence
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Quasar family
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Quasar payload
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Suspicious use of NtCreateUserProcessOtherParentProcess
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Boot or Logon Autostart Execution: Active Setup
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
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Downloads MZ/PE file
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Drops file in Drivers directory
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Modifies RDP port number used by Windows
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Sets service image path in registry
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Credentials from Password Stores: Windows Credential Manager
Suspicious access to Credentials History.
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Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
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Executes dropped EXE
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Impair Defenses: Safe Mode Boot
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Loads dropped DLL
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Boot or Logon Autostart Execution: Authentication Package
Suspicious Windows Authentication Registry Modification.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
5Active Setup
1Authentication Package
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
5Active Setup
1Authentication Package
1Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
Impair Defenses
1Safe Mode Boot
1Modify Registry
6Subvert Trust Controls
2Install Root Certificate
1SIP and Trust Provider Hijacking
1Credential Access
Credentials from Password Stores
2Credentials from Web Browsers
1Windows Credential Manager
1Unsecured Credentials
2Credentials In Files
1Credentials in Registry
1