Analysis
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max time kernel
148s -
max time network
151s -
platform
windows7_x64 -
resource
win7-20230220-en -
resource tags
arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system -
submitted
23-03-2023 05:21
Static task
static1
Behavioral task
behavioral1
Sample
5784eba1f14d03fe62efdf8bda0a3dbd.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
5784eba1f14d03fe62efdf8bda0a3dbd.exe
Resource
win10v2004-20230221-en
General
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Target
5784eba1f14d03fe62efdf8bda0a3dbd.exe
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Size
471KB
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MD5
5784eba1f14d03fe62efdf8bda0a3dbd
-
SHA1
fa718fa12c9de367502b6770da28d39e4e732b82
-
SHA256
ed4750473cade168acd7fb6a70c66fac7b919266d17a6b78d99c693a2a2c758c
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SHA512
de106a5144125dc92e5481a3aabe08ee51c8c6ba480bd7ccdca50d567ac3235a221da3c5aeeda62c5df8e51d8693a80c77184330befcc7727bff36128a53069e
-
SSDEEP
12288:PY/N+6lwMD0IrKl0aehawVhG8hN5HplOMoxm6lMO:PY/NLwNhlTehDgIJlOMo46lMO
Malware Config
Extracted
remcos
RemoteHost
88.209.254.28:2404
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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
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-ZIMT0C
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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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startup_value
Remcos
-
take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Executes dropped EXE 2 IoCs
Processes:
styvvbvfnw.exestyvvbvfnw.exepid process 1784 styvvbvfnw.exe 280 styvvbvfnw.exe -
Loads dropped DLL 3 IoCs
Processes:
5784eba1f14d03fe62efdf8bda0a3dbd.exestyvvbvfnw.exepid process 1692 5784eba1f14d03fe62efdf8bda0a3dbd.exe 1692 5784eba1f14d03fe62efdf8bda0a3dbd.exe 1784 styvvbvfnw.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Suspicious use of SetThreadContext 1 IoCs
Processes:
styvvbvfnw.exedescription pid process target process PID 1784 set thread context of 280 1784 styvvbvfnw.exe styvvbvfnw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
styvvbvfnw.exepid process 1784 styvvbvfnw.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
styvvbvfnw.exepid process 280 styvvbvfnw.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
5784eba1f14d03fe62efdf8bda0a3dbd.exestyvvbvfnw.exedescription pid process target process PID 1692 wrote to memory of 1784 1692 5784eba1f14d03fe62efdf8bda0a3dbd.exe styvvbvfnw.exe PID 1692 wrote to memory of 1784 1692 5784eba1f14d03fe62efdf8bda0a3dbd.exe styvvbvfnw.exe PID 1692 wrote to memory of 1784 1692 5784eba1f14d03fe62efdf8bda0a3dbd.exe styvvbvfnw.exe PID 1692 wrote to memory of 1784 1692 5784eba1f14d03fe62efdf8bda0a3dbd.exe styvvbvfnw.exe PID 1784 wrote to memory of 280 1784 styvvbvfnw.exe styvvbvfnw.exe PID 1784 wrote to memory of 280 1784 styvvbvfnw.exe styvvbvfnw.exe PID 1784 wrote to memory of 280 1784 styvvbvfnw.exe styvvbvfnw.exe PID 1784 wrote to memory of 280 1784 styvvbvfnw.exe styvvbvfnw.exe PID 1784 wrote to memory of 280 1784 styvvbvfnw.exe styvvbvfnw.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\5784eba1f14d03fe62efdf8bda0a3dbd.exe"C:\Users\Admin\AppData\Local\Temp\5784eba1f14d03fe62efdf8bda0a3dbd.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe" C:\Users\Admin\AppData\Local\Temp\axqasndr.ufk2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exe"3⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:280
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\ProgramData\remcos\logs.datFilesize
570B
MD5a5f4e214ce56148eac82629bc2000e57
SHA117626d81dba2c9ac7a19bc33d2b7f05d69b8ece4
SHA25656e14102681e50edf06ae0ef6b70ead951e27a3cdc3c6630bcd73d41d0a3d44f
SHA5128b601ac3fcd25d6c9d915191602a1729f398ab3ab625f7d454150a82045781108835747d50b080c1baad9d41fdf76707a000084e059505ed73425769dcaaf537
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C:\Users\Admin\AppData\Local\Temp\axqasndr.ufkFilesize
6KB
MD5d596498aac5ce1ca97cfcd96ec3ee495
SHA109a21830a00e83b1e5805605fc995d95e54c852a
SHA256ccad30f95fed5a8134cbe5ac04b3610500ced34017f89096e4c85ee58744ec3c
SHA512af42c33cbd22fdcb97610b91965eddec60e95dd692a5c3fd3caaeef3ef5c10c3fe36e3a10b9691a259541535b796646aa6cd9832a09f22845752f06f14aed441
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C:\Users\Admin\AppData\Local\Temp\jioxeb.joFilesize
496KB
MD57e42aad07741284eed7e0f967c0fd67b
SHA1914b21ea0fed5f1a88c89a2ebdf05c1af4e16b8c
SHA2562b554654f813c4dd644bb21dfb93ea39a168943a3f0ac73635883e9b158f5680
SHA512984833eea934f103fc92dd70d59183f39c37aef0a77bcee911e82e8e2b95e126bd12a26b2eda44c334b61ff4c033d6e62192301933c5d7815d505e384dfc41b0
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C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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C:\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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\Users\Admin\AppData\Local\Temp\styvvbvfnw.exeFilesize
5KB
MD58694eabecd5eb006702df56dd8ca32aa
SHA167c5cce9dc8dc4d12f75eba645e15d30ce89dd2e
SHA2566308a1eb34327ce7095216db01d27bbec8b5e4d283cee6dee46e4825762ddf09
SHA512f74e75b51c52cf2a97a4afbf0a3c3af8ed5b461e6b5381d4fc0fee16d4a911d7eab22438b3b0a6e7d0eb75d34324ffc4151fe3c534f7895e805230ad644a1f0e
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memory/280-80-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-89-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-76-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-77-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-78-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-79-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-73-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-81-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-86-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-69-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-88-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-74-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-94-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-95-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-100-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-101-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-106-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-108-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-113-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-114-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-119-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB
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memory/280-120-0x0000000000400000-0x0000000000480000-memory.dmpFilesize
512KB