General
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Target
Packburpsuite23.rar
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Size
208.8MB
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Sample
250201-ck246a1ldz
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MD5
5efcf7a8bd877b4000b90f2ac394e6bd
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SHA1
bf7e9911977accdcfcfd0c3164fadc48216073ea
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SHA256
205fe25ce343c37bea70905bf36be8884564133e537ca8b4c2f33b7785702f8a
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SHA512
f74cfdbd87d5fcfb090a9ca251562d565b8ef3419d268e08f5d72d28263a7460cbb76e822110c549dba4f83ed24c9491b8c38247bb6c6c9b732b550da4d7bb77
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SSDEEP
6291456:Srf5A0sti5kAmJGv2Av5Iix2xEBPecCv5c3:AG0I6kAAGvBvEE5Cv5c3
Static task
static1
Malware Config
Extracted
quasar
1.3.0.0
loomis3
hapansystem.hopto.org:4444
QSR_MUTEX_0KwxSTm0dkBBRBLDt0
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encryption_key
s5qjX0nnX6JZYjQaaEO1
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install_name
svhostt.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
svhostt
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subdirectory
SubDir
Targets
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Target
Packburpsuite23.rar
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Size
208.8MB
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MD5
5efcf7a8bd877b4000b90f2ac394e6bd
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SHA1
bf7e9911977accdcfcfd0c3164fadc48216073ea
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SHA256
205fe25ce343c37bea70905bf36be8884564133e537ca8b4c2f33b7785702f8a
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SHA512
f74cfdbd87d5fcfb090a9ca251562d565b8ef3419d268e08f5d72d28263a7460cbb76e822110c549dba4f83ed24c9491b8c38247bb6c6c9b732b550da4d7bb77
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SSDEEP
6291456:Srf5A0sti5kAmJGv2Av5Iix2xEBPecCv5c3:AG0I6kAAGvBvEE5Cv5c3
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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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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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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
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1