General
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Target
33C2ADEBFE2C3ACEDFB34FFFF8151B7D.exe
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Size
72.2MB
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Sample
241209-weld1a1jer
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MD5
33c2adebfe2c3acedfb34ffff8151b7d
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SHA1
8e93f7ecafa92017a7d528423574ab5cfeec754a
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SHA256
773e13fffd0842e717ce55e2a678da37123c55186f9c92460c671261b1654ffd
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SHA512
6f545b4da55412ec78de6d1c3bddbcc6bb857b7d13b15fe4bb832259dbe1842d44a02b46395233c23ca57abd34239226a60c9f7ee26fcf82ba383a836f8d61ad
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SSDEEP
1572864:yIWs/6+mI5n17YTIytz8ATFiQiFGaaoE13gIFxXtzM/zMfCOA6Z:ssJmIBiTvR8UFiQYGvoq35FVEeCOr
Static task
static1
Behavioral task
behavioral1
Sample
33C2ADEBFE2C3ACEDFB34FFFF8151B7D.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
33C2ADEBFE2C3ACEDFB34FFFF8151B7D.exe
Resource
win10v2004-20241007-en
Malware Config
Extracted
quasar
1.4.1
Office04
167.71.56.116:22269
3470ac31-30aa-4cf6-ab0a-1ed0dd64656f
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encryption_key
33E08519CDBEF59C54E93052681A76D1969C659E
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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
33C2ADEBFE2C3ACEDFB34FFFF8151B7D.exe
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Size
72.2MB
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MD5
33c2adebfe2c3acedfb34ffff8151b7d
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SHA1
8e93f7ecafa92017a7d528423574ab5cfeec754a
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SHA256
773e13fffd0842e717ce55e2a678da37123c55186f9c92460c671261b1654ffd
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SHA512
6f545b4da55412ec78de6d1c3bddbcc6bb857b7d13b15fe4bb832259dbe1842d44a02b46395233c23ca57abd34239226a60c9f7ee26fcf82ba383a836f8d61ad
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SSDEEP
1572864:yIWs/6+mI5n17YTIytz8ATFiQiFGaaoE13gIFxXtzM/zMfCOA6Z:ssJmIBiTvR8UFiQYGvoq35FVEeCOr
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Quasar family
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Quasar payload
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Downloads MZ/PE file
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Event Triggered Execution: Image File Execution Options Injection
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ACProtect 1.3x - 1.4x DLL software
Detects file using ACProtect software.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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Loads dropped DLL
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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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Drops desktop.ini file(s)
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Checks system information in the registry
System information is often read in order to detect sandboxing environments.
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Event Triggered Execution
2Component Object Model Hijacking
1Image File Execution Options Injection
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Modify Registry
1Subvert Trust Controls
1Install Root Certificate
1