General
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Target
Tax_Refund_Claim_2024_Australian_Taxation_Office.js
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Size
163KB
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Sample
250105-jccymayqhj
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MD5
a99ac2b0c9df4fc8b76f1c96bfce311c
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SHA1
3cbdd7d89a4d57005496a40cf1bf9a43e41f2635
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SHA256
496328b2630e631422e0e62da0ca876b54801a963c8e71ad79c0c4e20165999c
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SHA512
8d64a90a5ad998f1ccc7f490f4c494f96c2291fb53254cf1394e9ab7cee62cbe281b9d2d3ab4f7a945d2804744f21d83d4c5f3361dbc3f49958666f128dd0a10
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SSDEEP
1536:4zWfDq6wXS9V329iMiHQWpxE7EqU+GOK44nFlWETMJWlR4gqzDe/zQ6V2YrzJ50l:4zWf+6wC9I3iJAZafzQ6VdzjiI2fx
Static task
static1
Behavioral task
behavioral1
Sample
Tax_Refund_Claim_2024_Australian_Taxation_Office.js
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
Tax_Refund_Claim_2024_Australian_Taxation_Office.js
Resource
win10v2004-20241007-en
Malware Config
Extracted
https://res.cloudinary.com/dnkr4s5yg/image/upload/v1735420882/givvuo2katk3jnggipgn.jpg%20
https://res.cloudinary.com/dnkr4s5yg/image/upload/v1735420882/givvuo2katk3jnggipgn.jpg%20
Extracted
remcos
chesguyce
195.133.78.18:7346
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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
false
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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
fyhstga-ONSWMZ
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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
Tax_Refund_Claim_2024_Australian_Taxation_Office.js
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Size
163KB
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MD5
a99ac2b0c9df4fc8b76f1c96bfce311c
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SHA1
3cbdd7d89a4d57005496a40cf1bf9a43e41f2635
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SHA256
496328b2630e631422e0e62da0ca876b54801a963c8e71ad79c0c4e20165999c
-
SHA512
8d64a90a5ad998f1ccc7f490f4c494f96c2291fb53254cf1394e9ab7cee62cbe281b9d2d3ab4f7a945d2804744f21d83d4c5f3361dbc3f49958666f128dd0a10
-
SSDEEP
1536:4zWfDq6wXS9V329iMiHQWpxE7EqU+GOK44nFlWETMJWlR4gqzDe/zQ6V2YrzJ50l:4zWf+6wC9I3iJAZafzQ6VdzjiI2fx
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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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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
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1