Analysis
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max time kernel
148s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
19-04-2024 17:46
Static task
static1
Behavioral task
behavioral1
Sample
HEARTB.dll
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
HEARTB.dll
Resource
win10v2004-20240412-en
General
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Target
HEARTB.dll
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Size
762.9MB
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MD5
0388aed063e3aa34a3a6a08c32cf90bf
-
SHA1
efc04bfc8a8aac5da6bb00f0b52d3f325f267a50
-
SHA256
2b30cabf96318357cd458a639ea7b5b92a511fc595cb7ca800a9a5c28048f0fe
-
SHA512
71a623efec18aaff44dc303cdc0f8a18d71c825d28f880fab5d423cfb917924eca4ca30848e5f9cbb11458ddec6e270a69b9581b0e7c3102e006229bbebe1505
-
SSDEEP
98304:qqHQXidDnBW0hcthSDnqDO5rzRQfaxcxVwdqaBA:qXi9gDmyhmM
Malware Config
Extracted
remcos
RemoteHost
martinsplexis.duckdns.org:4047
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
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copy_folder
Remcos
-
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
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
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mouse_option
false
-
mutex
Rmc-RH6SHP
-
screenshot_crypt
false
-
screenshot_flag
false
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screenshot_folder
Screenshots
-
screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
-
take_screenshot_time
5
Signatures
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Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
Processes:
regsvr32.exepid process 1992 regsvr32.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
regsvr32.exeregsvr32.exedescription pid process target process PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 2360 wrote to memory of 1992 2360 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe PID 1992 wrote to memory of 3012 1992 regsvr32.exe regsvr32.exe
Processes
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C:\Windows\system32\regsvr32.exeregsvr32 /s C:\Users\Admin\AppData\Local\Temp\HEARTB.dll1⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\regsvr32.exe/s C:\Users\Admin\AppData\Local\Temp\HEARTB.dll2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\regsvr32.exe"C:\Windows\SysWOW64\regsvr32.exe"3⤵
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1992-12-0x00000000679E0000-0x0000000068086000-memory.dmpFilesize
6.6MB
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memory/1992-1-0x00000000679E0000-0x0000000068086000-memory.dmpFilesize
6.6MB
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memory/1992-3-0x00000000679E0000-0x0000000068086000-memory.dmpFilesize
6.6MB
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memory/1992-0-0x00000000679E0000-0x0000000068086000-memory.dmpFilesize
6.6MB
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memory/3012-18-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-20-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-14-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-13-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmpFilesize
4KB
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memory/3012-7-0x0000000000090000-0x0000000000091000-memory.dmpFilesize
4KB
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memory/3012-16-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-17-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-2-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-9-0x0000000000090000-0x0000000000091000-memory.dmpFilesize
4KB
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memory/3012-19-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-21-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-24-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-25-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-26-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-28-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-29-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-30-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-33-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB
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memory/3012-32-0x00000000000F0000-0x0000000000172000-memory.dmpFilesize
520KB