General
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Target
e70bd0ca33bf3456689336f331e078d39636047f9356e34897659fa0593f7c03
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Size
1.4MB
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Sample
230802-bx7pqscb42
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MD5
d0bdc4b41bc553687e0d7ee6a937d398
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SHA1
4f83396527b3e448b53c15cab89e95f67501b560
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SHA256
e70bd0ca33bf3456689336f331e078d39636047f9356e34897659fa0593f7c03
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SHA512
a5fa434c1ab9403b31ed106aeab82255c439510153daedce766e272ca1fb2613979fecef51f91156f4f4ee48a074de65bfb3fa23e450cd5e96c9f8d23f2d7e6d
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SSDEEP
24576:U2G/nvxW3Ww0tRp8GiXTBhq7yRDvHcUcjUvy0lr3Tl6icOB/UWoT:UbA30H4zF0UMSAicOB/UWk
Static task
static1
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
e70bd0ca33bf3456689336f331e078d39636047f9356e34897659fa0593f7c03
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Size
1.4MB
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MD5
d0bdc4b41bc553687e0d7ee6a937d398
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SHA1
4f83396527b3e448b53c15cab89e95f67501b560
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SHA256
e70bd0ca33bf3456689336f331e078d39636047f9356e34897659fa0593f7c03
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SHA512
a5fa434c1ab9403b31ed106aeab82255c439510153daedce766e272ca1fb2613979fecef51f91156f4f4ee48a074de65bfb3fa23e450cd5e96c9f8d23f2d7e6d
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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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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