General
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Target
9955e237e5f00ca94109005a2d778a88641d25fef299864223fa835e808f2236
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Size
1018KB
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Sample
250421-x2xwzssxbt
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MD5
eceb6e1e8aa84e6501589dc1d3deb419
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SHA1
467a412530d7af26b01ec278d7d325e4b6dd047a
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SHA256
9955e237e5f00ca94109005a2d778a88641d25fef299864223fa835e808f2236
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SHA512
be256564941a092d73b6931dfa0a238b17d68c69e1742b98844e43fa3010db83bf9d52922912e127cd9b6cd1bbf9ecd39c4a36c2da676ca060bf21ffef8b27bf
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SSDEEP
24576:pji1+TKiRzC0NqgGApfkxIpePcvkTR8cvkTAU:pu1+miRnQjALpe0vkTNvkTN
Malware Config
Extracted
asyncrat
0.5.8
Default
jvjv2044duck33.duckdns.org:8808
0fC8zJGwBBNm
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delay
3
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install
true
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install_file
csrss.exe
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install_folder
%AppData%
Extracted
darkcomet
Guest16
jvjv2044duck33.duckdns.org:1604
DC_MUTEX-CK7UE3N
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InstallPath
MSDCSC\msdcsc.exe
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gencode
Jp74nsvbhc4i
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install
true
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offline_keylogger
true
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persistence
true
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reg_key
MicroUpdate
Targets
-
-
Target
9955e237e5f00ca94109005a2d778a88641d25fef299864223fa835e808f2236
-
Size
1018KB
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MD5
eceb6e1e8aa84e6501589dc1d3deb419
-
SHA1
467a412530d7af26b01ec278d7d325e4b6dd047a
-
SHA256
9955e237e5f00ca94109005a2d778a88641d25fef299864223fa835e808f2236
-
SHA512
be256564941a092d73b6931dfa0a238b17d68c69e1742b98844e43fa3010db83bf9d52922912e127cd9b6cd1bbf9ecd39c4a36c2da676ca060bf21ffef8b27bf
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SSDEEP
24576:pji1+TKiRzC0NqgGApfkxIpePcvkTR8cvkTAU:pu1+miRnQjALpe0vkTNvkTN
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Asyncrat family
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Darkcomet family
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Modifies WinLogon for persistence
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Nanocore family
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Async RAT payload
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Disables Task Manager via registry modification
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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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Adds Run key to start application
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Checks whether UAC is enabled
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Drops file in System32 directory
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MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
2JavaScript
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Modify Registry
4