Analysis
- max time kernel
151s - max time network
155s - platform
windows7_x64 - resource
win7-20240221-en - resource tags
- submitted
25/03/2024, 16:26
General
- Target Ref [HSBC Ref# H240322-X793Y1] Transaction_Confirmation_2024.exe
- Size 966KB
- Sample240325-txhpqaff2s
- SHA256 e825cdfc2e4a1b1c6a56602cce16417f55e4f42c699cea18b4dddbbf85d9527f
Malware Config
Extracted
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remcos
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RemoteHost
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91.92.247.97:2505
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stefracino.store:2505
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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
true
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install_flag
false
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keylog_crypt
true
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keylog_file
togs.dat
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keylog_flag
false
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keylog_folder
stefcos
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mouse_option
false
-
mutex
Rmc-POOUYY
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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
- startup_value
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 11 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Ref [HSBC Ref# H240322-X793Y1] Transaction_Confirmation_2024.exe"C:\Users\Admin\AppData\Local\Temp\Ref [HSBC Ref# H240322-X793Y1] Transaction_Confirmation_2024.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\Ref [HSBC Ref# H240322-X793Y1] Transaction_Confirmation_2024.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UlvywtFnmZtH.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UlvywtFnmZtH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9943.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Suspicious behavior: GetForegroundWindowSpam
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
tmp9943.tmp
RHYJEI419AV3OIO9M4ZM.temp
memory/1288-40-0x0000000074440000-0x0000000074B2E000-memory.dmp
memory/1288-1-0x0000000074440000-0x0000000074B2E000-memory.dmp
memory/1288-2-0x0000000000B30000-0x0000000000B70000-memory.dmp
memory/1288-3-0x0000000000330000-0x0000000000342000-memory.dmp
memory/1288-4-0x00000000003D0000-0x00000000003DC000-memory.dmp
memory/1288-5-0x00000000054D0000-0x0000000005590000-memory.dmp
memory/1288-0-0x0000000000F20000-0x0000000001016000-memory.dmp
memory/1948-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-36-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp
memory/1948-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1948-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2564-46-0x000000006DF60000-0x000000006E50B000-memory.dmp
memory/2564-19-0x000000006DF60000-0x000000006E50B000-memory.dmp
memory/2564-21-0x00000000025D0000-0x0000000002610000-memory.dmp
memory/2616-45-0x000000006DF60000-0x000000006E50B000-memory.dmp
memory/2616-18-0x000000006DF60000-0x000000006E50B000-memory.dmp
memory/2616-20-0x000000006DF60000-0x000000006E50B000-memory.dmp