Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
19/08/2022, 04:30
General
- Target SecuriteInfo.com.Variant.Lazy.234727.5091.exe
- Size 24KB
- Sample220819-e4tcgagdan
- SHA256 4177cb74219e4ff3d5453eba44a7a0c149591bd3b4eadfe52972567f317d40c3
Malware Config
Extracted
-
remcos
-
RemoteHost
-
obologs.work.gd:4044
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audio_folder
MicRecords
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audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
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copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-RZY1YR
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
startup_value
Remcos
-
take_screenshot_option
false
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take_screenshot_time
5
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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.234727.5091.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Lazy.234727.5091.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- 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" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe2⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/3356-140-0x0000000007CF0000-0x000000000836A000-memory.dmp
memory/3356-141-0x0000000006B90000-0x0000000006BAA000-memory.dmp
memory/3356-135-0x00000000030B0000-0x00000000030E6000-memory.dmp
memory/3356-136-0x0000000005A20000-0x0000000006048000-memory.dmp
memory/3356-137-0x0000000005970000-0x00000000059D6000-memory.dmp
memory/3356-139-0x00000000066B0000-0x00000000066CE000-memory.dmp
memory/3356-138-0x00000000060C0000-0x0000000006126000-memory.dmp
memory/3988-143-0x0000000000400000-0x000000000047E000-memory.dmp
memory/3988-144-0x0000000000400000-0x000000000047E000-memory.dmp
memory/3988-145-0x0000000000400000-0x000000000047E000-memory.dmp
memory/3988-146-0x0000000000400000-0x000000000047E000-memory.dmp
memory/3988-147-0x0000000000400000-0x000000000047E000-memory.dmp
memory/4676-132-0x0000000000A60000-0x0000000000A6C000-memory.dmp
memory/4676-133-0x0000000005EC0000-0x0000000005EE2000-memory.dmp