Analysis
- max time kernel
150s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
07/11/2022, 16:26
General
- Target SecuriteInfo.com.Variant.Lazy.261382.22300.14911.exe
- Size 2.1MB
- Sample221107-txja9afgf3
- SHA256 6153c2ca084eca60bcc7372af3112faa0e75a9f0e2a7434d86fe91ebd4e01c70
Malware Config
Extracted
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remcos
-
2.7.1 Pro
-
Favour
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46.183.216.163:8107
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127.0.0.1:8107
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10.26.173.68:8107
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audio_folder
MicRecords
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audio_path
%AppData%
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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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install_path
%AppData%
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
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keylog_path
%AppData%
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mouse_option
false
-
mutex
Remcos-50BPKE
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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
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take_screenshot_title
wikipedia;solitaire;
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.261382.22300.14911.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.261382.22300.14911.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 UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAzAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.261382.22300.14911.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.261382.22300.14911.exe2⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/220-149-0x0000000000400000-0x0000000000421000-memory.dmp
memory/220-148-0x0000000000400000-0x0000000000421000-memory.dmp
memory/220-147-0x0000000000400000-0x0000000000421000-memory.dmp
memory/220-145-0x0000000000400000-0x0000000000421000-memory.dmp
memory/4280-138-0x0000000005750000-0x0000000005D78000-memory.dmp
memory/4280-139-0x0000000005D80000-0x0000000005DE6000-memory.dmp
memory/4280-140-0x0000000005E60000-0x0000000005EC6000-memory.dmp
memory/4280-141-0x0000000006560000-0x000000000657E000-memory.dmp
memory/4280-142-0x0000000007DA0000-0x000000000841A000-memory.dmp
memory/4280-143-0x0000000006A60000-0x0000000006A7A000-memory.dmp
memory/4280-137-0x0000000004FC0000-0x0000000004FF6000-memory.dmp
memory/4656-132-0x0000000000A10000-0x0000000000C32000-memory.dmp
memory/4656-135-0x0000000005970000-0x0000000005992000-memory.dmp
memory/4656-134-0x00000000059C0000-0x0000000005A52000-memory.dmp
memory/4656-133-0x0000000005B10000-0x00000000060B4000-memory.dmp