General
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Target
56c812e915b13daf7330c3e62fba75065fd344c7f5743aa76c557be2abc8ff2e
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Size
8KB
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Sample
241125-htps3svkgy
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MD5
2fc8b1db0d0a7505283be5552b36eae1
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SHA1
e7060dd6e43a145a327b97b70019d99768b84bb2
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SHA256
56c812e915b13daf7330c3e62fba75065fd344c7f5743aa76c557be2abc8ff2e
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SHA512
23bdd598231c4f997b4478a17c8d2c1ee0e42eee1322c58705fcfe70c74bd7762adfe9e600ec78b06d28810f0fd75d08445a0bb0a95aff6ea6f50fd294909400
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SSDEEP
192:wa+HRX//LInC5PK/MSYzDv7UlFyKV61Odd/Xjj:J+xXcChKkFfv7qkKUgdPjj
Static task
static1
Behavioral task
behavioral1
Sample
견적요청-SNU-RFQ-25-0074_2024-25-11·pdf.vbs
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
견적요청-SNU-RFQ-25-0074_2024-25-11·pdf.vbs
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
5nd42h78s.duckdns.org:3782
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audio_folder
MicRecords
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audio_path
ApplicationPath
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
true
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-J5NDOL
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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take_screenshot_time
5
Targets
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Target
견적요청-SNU-RFQ-25-0074_2024-25-11·pdf.vbs
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Size
15KB
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MD5
4080a1f28d2e8017fefb06ca6d46b608
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SHA1
add65be2539a98c3ce1c2bd82fb9a63a46b9c050
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SHA256
1fbf193c059f852718522ab608ebfeaebc3062bc2da2e4450be765f3718b210c
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SHA512
4647908cbaeca76c30cba24f1bb985f07b5eade617aafbec26bd74bebff5cf52d4a70b9580b2f182173ae98df5b50324a232cdfc1e4fa86141b57736e46bb381
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SSDEEP
384:RBOrNzhAwnWeEzMF7JDSz5nFheEduNsLXiEwnyB+7rH:2ZzhAjemMF7JDSzhFhV20XMyU7rH
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Remcos family
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Blocklisted process makes network request
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of NtCreateThreadExHideFromDebugger
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Suspicious use of NtSetInformationThreadHideFromDebugger
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3