General
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Target
ba1a3eca6478d3dd2a29595b6d5463801c2211dad885f2445fee19cb9ae1cbb1
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Size
1.4MB
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Sample
231012-htbw8afb32
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MD5
ad30a8a281efd3376af8075187c7cb2e
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SHA1
b26136fbbc8070fc8574d3bef2bf162086e0c3b5
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SHA256
ba1a3eca6478d3dd2a29595b6d5463801c2211dad885f2445fee19cb9ae1cbb1
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SHA512
72d74edec60b66d19eb4cb56003193f0ddf89e7cd198e5595d851186e8dcdc0ccdf45f8f9648e5ad1b8b0c8ea820a631a86c799536068dae26f7e6f5beeef7e7
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
Behavioral task
behavioral1
Sample
ba1a3eca6478d3dd2a29595b6d5463801c2211dad885f2445fee19cb9ae1cbb1.exe
Resource
win7-20230831-en
Behavioral task
behavioral2
Sample
ba1a3eca6478d3dd2a29595b6d5463801c2211dad885f2445fee19cb9ae1cbb1.exe
Resource
win10v2004-20230915-en
Malware Config
Extracted
quasar
1.3.0.0
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94.131.105.161:12344
QSR_MUTEX_UEgITWnMKnRP3EZFzK
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encryption_key
5Q0JQBQQfAUHRJTcAIOF
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install_name
lient.exe
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log_directory
Lugs
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reconnect_delay
3000
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startup_key
itartup
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subdirectory
SubDir
Targets
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Target
ba1a3eca6478d3dd2a29595b6d5463801c2211dad885f2445fee19cb9ae1cbb1
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Size
1.4MB
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MD5
ad30a8a281efd3376af8075187c7cb2e
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SHA1
b26136fbbc8070fc8574d3bef2bf162086e0c3b5
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SHA256
ba1a3eca6478d3dd2a29595b6d5463801c2211dad885f2445fee19cb9ae1cbb1
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SHA512
72d74edec60b66d19eb4cb56003193f0ddf89e7cd198e5595d851186e8dcdc0ccdf45f8f9648e5ad1b8b0c8ea820a631a86c799536068dae26f7e6f5beeef7e7
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
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Quasar payload
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Modifies Windows Firewall
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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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Executes dropped EXE
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Loads dropped DLL
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Unexpected DNS network traffic destination
Network traffic to other servers than the configured DNS servers was detected on the DNS port.
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Adds Run key to start application
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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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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1