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Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10/01/2025, 14:48
Static task
static1
Behavioral task
behavioral1
Sample
5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe
Resource
win10v2004-20241007-en
Behavioral task
behavioral3
Sample
$PLUGINSDIR/System.dll
Resource
win7-20240903-en
Behavioral task
behavioral4
Sample
$PLUGINSDIR/System.dll
Resource
win10v2004-20241007-en
General
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Target
5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe
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Size
1.6MB
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MD5
15214c528c41de4d5e542ebd3d4ac075
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SHA1
bdab48d323ab0e0c4689061db5fb08adfe1afec8
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SHA256
5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63
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SHA512
02b6635e4f1a98765e65ee14db0e93ab8dfdf4c7c0086addad86e4a09466ae49dc66accda0bc142828656fca994eb99255ea4c762ffc9f6706410e4877cc9fc2
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SSDEEP
24576:t9tWunuwwAghUBUQyXGF8X0VMMOFdYHJStLidtLw8tWVq6VdbcGstKR18+YDQZp:NWtP4+P0Vn+dYHMwwjbV6Gst2aDQZp
Malware Config
Extracted
remcos
RemoteHost
subddfg.lol:2404
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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
Rmc-A65UIX
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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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Remcos family
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Loads dropped DLL 2 IoCs
pid Process 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Startup key = "C:\\Users\\Admin\\AppData\\Local\\Temp\\subfolder1\\Reaccented.scr" 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
pid Process 4300 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 4300 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4924 set thread context of 4300 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 91 -
Drops file in Program Files directory 1 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Common Files\polybuny\proteolysis.dat 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe -
Suspicious use of WriteProcessMemory 5 IoCs
description pid Process procid_target PID 4924 wrote to memory of 4300 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 91 PID 4924 wrote to memory of 4300 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 91 PID 4924 wrote to memory of 4300 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 91 PID 4924 wrote to memory of 4300 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 91 PID 4924 wrote to memory of 4300 4924 5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe"C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4924 -
C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe"C:\Users\Admin\AppData\Local\Temp\5aeb1293c473a66795bf0ff3a7892e6a6cf70aea5248a38f204632a5fdbe1f63.exe"2⤵
- Adds Run key to start application
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
PID:4300
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
75B
MD53b76d3cd0fc3eb96afae754496ad3f71
SHA14ec65df20e96a6441767c8ac8c26fd55a67053b9
SHA2563c1949b5049bd316a4187cd85947e4aa97b7db97a705cae80adb257f1c8602bb
SHA5125344fae101c7c27592506b2139eaa165db0d4a4686d21c424b7b86389890b462865fc00b3219bf667a0c3b8c66ecc4483d5d853bf41bf077b22759cfe09dc003
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Filesize
11KB
MD50063d48afe5a0cdc02833145667b6641
SHA1e7eb614805d183ecb1127c62decb1a6be1b4f7a8
SHA256ac9dfe3b35ea4b8932536ed7406c29a432976b685cc5322f94ef93df920fede7
SHA51271cbbcaeb345e09306e368717ea0503fe8df485be2e95200febc61bcd8ba74fb4211cd263c232f148c0123f6c6f2e3fd4ea20bdecc4070f5208c35c6920240f0