General
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Target
e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758N.exe
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Size
637KB
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Sample
241231-1p3s9a1lby
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MD5
f1c3e7d4f2ea34ded96047cc76392340
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SHA1
60683db56a96afe8ef1557c10fb861ae1081097b
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SHA256
e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758
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SHA512
9d8cf3b1bc0bb153a364618f0e1038a87549ce9d3c89ae4fd65c24737cb1a07f31a8618fdbb7d66ef9f2e410e3616593f7ba2e2ec4fa1325b8f86147956d4e47
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SSDEEP
12288:PFUNDaJTEgdfYe/iKg3qFE4/ywNFpdrdwzTCcdjv:PFOaKUwC5F9ywNFpdJ7cdjv
Behavioral task
behavioral1
Sample
e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758N.exe
Resource
win7-20240903-en
Malware Config
Extracted
quasar
1.4.0
Office04
192.168.31.99:4782
2001:4bc9:1f98:a4e::676:4782
255.255.255.0:4782
fe80::cabf:4cff:fe84:9572%17:4782
1f65a787-81b8-4955-95e4-b7751e10cd50
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encryption_key
A0B82A50BBC49EC084E3E53A9E34DF58BD7050B9
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install_name
Java Updater.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Java Updater
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subdirectory
SubDir
Targets
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Target
e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758N.exe
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Size
637KB
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MD5
f1c3e7d4f2ea34ded96047cc76392340
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SHA1
60683db56a96afe8ef1557c10fb861ae1081097b
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SHA256
e05b6849f06853651630e79b77c52d8ca886299047d79e6ee2ace928d2105758
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SHA512
9d8cf3b1bc0bb153a364618f0e1038a87549ce9d3c89ae4fd65c24737cb1a07f31a8618fdbb7d66ef9f2e410e3616593f7ba2e2ec4fa1325b8f86147956d4e47
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SSDEEP
12288:PFUNDaJTEgdfYe/iKg3qFE4/ywNFpdrdwzTCcdjv:PFOaKUwC5F9ywNFpdJ7cdjv
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Modifies visiblity of hidden/system files in Explorer
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Quasar family
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Quasar payload
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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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Drops file in System32 directory
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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
1Defense Evasion
Hide Artifacts
1Hidden Files and Directories
1Modify Registry
2