General
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Target
證據_89004161-000002102-66_20241128·pdf.vbs
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Size
33KB
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Sample
241128-vvvf6stqbv
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MD5
b87c82bba48c44f8fc387ecd6100ff0e
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SHA1
2cdcb7b8b4f5a8b0501a121b6b4264aa7c6b2f57
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SHA256
20100ee5a74b50849ea1a00363a6751320c9aab43ba31859f79147af1b56b509
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SHA512
442d105706dcc997c39a141d7a944bbb961e8948d15caee81814f1a6d6245e46b00bf98e893c1623bd92b12b1ac440432fd26f4fd9166c5ffea8ac9a575af189
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SSDEEP
768:5KSasMUqkx36r142byXNoPNhZqpCtHki2ynMVVX09rkFJC:ISas/RF6hWyPN/MbZ09oFM
Static task
static1
Behavioral task
behavioral1
Sample
證據_89004161-000002102-66_20241128·pdf.vbs
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
證據_89004161-000002102-66_20241128·pdf.vbs
Resource
win10v2004-20241007-en
Malware Config
Extracted
remcos
RemoteHost
8766e34g8.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-93TSMD
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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
證據_89004161-000002102-66_20241128·pdf.vbs
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Size
33KB
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MD5
b87c82bba48c44f8fc387ecd6100ff0e
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SHA1
2cdcb7b8b4f5a8b0501a121b6b4264aa7c6b2f57
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SHA256
20100ee5a74b50849ea1a00363a6751320c9aab43ba31859f79147af1b56b509
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SHA512
442d105706dcc997c39a141d7a944bbb961e8948d15caee81814f1a6d6245e46b00bf98e893c1623bd92b12b1ac440432fd26f4fd9166c5ffea8ac9a575af189
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SSDEEP
768:5KSasMUqkx36r142byXNoPNhZqpCtHki2ynMVVX09rkFJC:ISas/RF6hWyPN/MbZ09oFM
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Remcos family
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Detected Nirsoft tools
Free utilities often used by attackers which can steal passwords, product keys, etc.
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NirSoft MailPassView
Password recovery tool for various email clients
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NirSoft WebBrowserPassView
Password recovery tool for various web browsers
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Blocklisted process makes network request
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Uses browser remote debugging
Can be used control the browser and steal sensitive information such as credentials and session cookies.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Accesses Microsoft Outlook accounts
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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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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Modify Authentication Process
1Privilege 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 Authentication Process
1Modify Registry
3