Analysis
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max time kernel
150s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
27-09-2022 21:31
Static task
static1
Behavioral task
behavioral1
Sample
image001.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
image001.exe
Resource
win10v2004-20220812-en
General
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Target
image001.exe
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Size
138KB
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MD5
eb89816844f308ccfae4bbe2a72d527d
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SHA1
6f04b00bdb256b616ac1edadf637378fccb36670
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SHA256
6d891a2985e39d8b0cb720b24f92deb90370f5e25cf4158b5d224802475a8e66
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SHA512
48cac0381d7ce3db389895c49a3c3ffff0f3edf1217d4515d081d5c768bc9d5b75018953f348f175585b797d36e7da6a9f300c2d04fa6678b8bebf0d0ec6665c
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SSDEEP
3072:m1TBs5bEg6AAAITTE4R2GZzuj7Fnkob8x4zJLr:UBs5bEg6/T44R2GZzuj7Fkob8x
Malware Config
Extracted
remcos
StarMoneyNew
185.252.178.35:41900
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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-6RGOTF
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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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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
image001.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation image001.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
image001.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kvryolsk = "\"C:\\Users\\Admin\\AppData\\Roaming\\Csylj\\Kvryolsk.exe\"" image001.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
image001.exedescription pid process target process PID 4172 set thread context of 4264 4172 image001.exe image001.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: EnumeratesProcesses 2 IoCs
Processes:
powershell.exepid process 1332 powershell.exe 1332 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
image001.exepowershell.exedescription pid process Token: SeDebugPrivilege 4172 image001.exe Token: SeDebugPrivilege 1332 powershell.exe -
Suspicious use of WriteProcessMemory 15 IoCs
Processes:
image001.exedescription pid process target process PID 4172 wrote to memory of 1332 4172 image001.exe powershell.exe PID 4172 wrote to memory of 1332 4172 image001.exe powershell.exe PID 4172 wrote to memory of 1332 4172 image001.exe powershell.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe PID 4172 wrote to memory of 4264 4172 image001.exe image001.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\image001.exe"C:\Users\Admin\AppData\Local\Temp\image001.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- 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" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\image001.exeC:\Users\Admin\AppData\Local\Temp\image001.exe2⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/1332-140-0x0000000007880000-0x0000000007EFA000-memory.dmpFilesize
6.5MB
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memory/1332-134-0x0000000000000000-mapping.dmp
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memory/1332-141-0x00000000066E0000-0x00000000066FA000-memory.dmpFilesize
104KB
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memory/1332-135-0x0000000004BF0000-0x0000000004C26000-memory.dmpFilesize
216KB
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memory/1332-136-0x0000000005260000-0x0000000005888000-memory.dmpFilesize
6.2MB
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memory/1332-137-0x0000000005AA0000-0x0000000005B06000-memory.dmpFilesize
408KB
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memory/1332-138-0x0000000005B80000-0x0000000005BE6000-memory.dmpFilesize
408KB
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memory/1332-139-0x0000000006220000-0x000000000623E000-memory.dmpFilesize
120KB
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memory/4172-133-0x0000000009020000-0x0000000009042000-memory.dmpFilesize
136KB
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memory/4172-142-0x00000000094A0000-0x0000000009532000-memory.dmpFilesize
584KB
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memory/4172-143-0x000000000A130000-0x000000000A6D4000-memory.dmpFilesize
5.6MB
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memory/4172-132-0x00000000006E0000-0x0000000000708000-memory.dmpFilesize
160KB
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memory/4264-149-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4264-144-0x0000000000000000-mapping.dmp
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memory/4264-145-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4264-146-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4264-147-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4264-148-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB