General
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Target
497960e1fdb8af14899674be0c997f9858384261945dbb91e8b28ae0e174cb6f.exe
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Size
13.3MB
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Sample
241121-gjn85ayrb1
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MD5
0d6982311c8a21313994773c99380dfb
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SHA1
d8a6abfbdf3fe52598f570abeed3b272b10484bd
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SHA256
497960e1fdb8af14899674be0c997f9858384261945dbb91e8b28ae0e174cb6f
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SHA512
47b4c7f9a8a49ab067d4214d6cb73277bc56f7e671d3ef3c38ca8d845c65dbf2303e083294d71d68bf4348b87558141d4d3281d959d262efe56b29a87e5437c4
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SSDEEP
49152:Kqsm55NYMPrb/T7vO90dL3BmAFd4A64nsfJlFngTR55I7NLz1S:Kq95TUGPf
Static task
static1
Behavioral task
behavioral1
Sample
497960e1fdb8af14899674be0c997f9858384261945dbb91e8b28ae0e174cb6f.exe
Resource
win7-20240708-en
Malware Config
Extracted
quasar
1.4.0
COM Surrogate
10.8.1.66:8869
119b9028-5664-4725-b2c1-1e4eaf743d68
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encryption_key
B0092D1E1BA8BCBB825AA0760094E03D6D52E169
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install_name
3388.exe
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log_directory
COMLogs
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reconnect_delay
5000
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startup_key
COM Surrogate
Targets
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Target
497960e1fdb8af14899674be0c997f9858384261945dbb91e8b28ae0e174cb6f.exe
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Size
13.3MB
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MD5
0d6982311c8a21313994773c99380dfb
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SHA1
d8a6abfbdf3fe52598f570abeed3b272b10484bd
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SHA256
497960e1fdb8af14899674be0c997f9858384261945dbb91e8b28ae0e174cb6f
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SHA512
47b4c7f9a8a49ab067d4214d6cb73277bc56f7e671d3ef3c38ca8d845c65dbf2303e083294d71d68bf4348b87558141d4d3281d959d262efe56b29a87e5437c4
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SSDEEP
49152:Kqsm55NYMPrb/T7vO90dL3BmAFd4A64nsfJlFngTR55I7NLz1S:Kq95TUGPf
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Contains code to disable Windows Defender
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Quasar family
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Quasar payload
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Executes dropped EXE
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Loads dropped DLL
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v15
Persistence
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1