Analysis
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max time kernel
147s -
max time network
144s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
24-04-2024 02:17
Static task
static1
Behavioral task
behavioral1
Sample
2023_TAX_ORGANIZER/Tax Organizer.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
2023_TAX_ORGANIZER/Tax Organizer.exe
Resource
win10v2004-20240412-en
Behavioral task
behavioral3
Sample
2023_TAX_ORGANIZER/g2m.dll
Resource
win7-20240221-en
Behavioral task
behavioral4
Sample
2023_TAX_ORGANIZER/g2m.dll
Resource
win10v2004-20240412-en
General
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Target
2023_TAX_ORGANIZER/Tax Organizer.exe
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Size
31KB
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MD5
3e71ed46603b02a94b921411a19b7a5c
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SHA1
b1374ef6717635d07015d8acb700cf95b2a66b12
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SHA256
1131f33552a12921f6f4d7d9e503feae4b12c367d5377e226acf270f6b58ca6e
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SHA512
28555a8bf20e4f8d42b21685c06e429bc5261f75e9fb65b970a322907d7da4a4ee7d367f4637ea4abb6ef32fae8e71a9d92b4f253a201e94548d68281edccbaf
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SSDEEP
384:e8Kj/M8yEryzqEt7a9Oey+IFdP64VYaEwDtiBgxoxlnLr2STcEICxXBhgBx4eMDa:eDD1r+VWOV+csoHViBBn+EFIqeMDGvaS
Malware Config
Extracted
remcos
RemoteHost
faststaynow.duckdns.org:5057
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audio_folder
MicRecords
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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
Rmc-Q95C1N
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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
Signatures
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
reg.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2297530677-1229052932-2803917579-1000\Software\Microsoft\Windows\CurrentVersion\Run\*Chrome = "rundll32.exe C:\\Users\\Admin\\AppData\\Roaming\\HEARTB.dll,EntryPoint" reg.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
Tax Organizer.exepid process 2492 Tax Organizer.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
Tax Organizer.execmd.exedescription pid process target process PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2500 2492 Tax Organizer.exe Tax Organizer.exe PID 2492 wrote to memory of 2604 2492 Tax Organizer.exe cmd.exe PID 2492 wrote to memory of 2604 2492 Tax Organizer.exe cmd.exe PID 2492 wrote to memory of 2604 2492 Tax Organizer.exe cmd.exe PID 2492 wrote to memory of 2604 2492 Tax Organizer.exe cmd.exe PID 2604 wrote to memory of 2572 2604 cmd.exe reg.exe PID 2604 wrote to memory of 2572 2604 cmd.exe reg.exe PID 2604 wrote to memory of 2572 2604 cmd.exe reg.exe PID 2604 wrote to memory of 2572 2604 cmd.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2023_TAX_ORGANIZER\Tax Organizer.exe"C:\Users\Admin\AppData\Local\Temp\2023_TAX_ORGANIZER\Tax Organizer.exe"1⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of WriteProcessMemory
PID:2492 -
C:\Users\Admin\AppData\Local\Temp\2023_TAX_ORGANIZER\Tax Organizer.exe"C:\Users\Admin\AppData\Local\Temp\2023_TAX_ORGANIZER\Tax Organizer.exe"2⤵PID:2500
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C:\Windows\SysWOW64\cmd.execmd.exe /C reg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*Chrome" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\HEARTB.dll",EntryPoint /f & exit2⤵
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\SysWOW64\reg.exereg add "HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "*Chrome" /t REG_SZ /d "rundll32.exe C:\Users\Admin\AppData\Roaming\HEARTB.dll",EntryPoint /f3⤵
- Adds Run key to start application
PID:2572