Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
21/11/2022, 18:38
General
- Target SecuriteInfo.com.Trojan.DownLoader44.61502.13247.6577.exe
- Size 2.3MB
- Sample221121-w92dpscf22
- SHA256 e44bacf6fb23f27328cdb3f6fea5febdfdfab5729c69a024c63040faf1e08baf
Malware Config
Extracted
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remcos
-
FAITH
-
185.206.225.51:18853
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127.0.0.1:18853
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10.16.225.165:18853
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audio_folder
MicRecords
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audio_path
%AppData%
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audio_record_time
5
-
connect_delay
0
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connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
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hide_keylog_file
false
-
install_flag
false
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install_path
%AppData%
-
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%
-
mouse_option
false
-
mutex
Remcos-QQ9K6X
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
-
startup_value
Remcos
-
take_screenshot_option
false
-
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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 15 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader44.61502.13247.6577.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader44.61502.13247.6577.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 UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader44.61502.13247.6577.exeC:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.DownLoader44.61502.13247.6577.exe2⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2496-132-0x0000000000AB0000-0x0000000000CFC000-memory.dmp
memory/2496-133-0x0000000005580000-0x0000000005612000-memory.dmp
memory/2496-134-0x0000000005E30000-0x00000000063D4000-memory.dmp
memory/2496-135-0x00000000058B0000-0x00000000058D2000-memory.dmp
memory/4968-137-0x0000000003050000-0x0000000003086000-memory.dmp
memory/4968-138-0x00000000058D0000-0x0000000005EF8000-memory.dmp
memory/4968-139-0x0000000005F70000-0x0000000005FD6000-memory.dmp
memory/4968-140-0x0000000005FE0000-0x0000000006046000-memory.dmp
memory/4968-141-0x0000000006640000-0x000000000665E000-memory.dmp
memory/4968-142-0x0000000007C90000-0x000000000830A000-memory.dmp
memory/4968-143-0x0000000006B50000-0x0000000006B6A000-memory.dmp
memory/5100-145-0x0000000000400000-0x000000000047B000-memory.dmp
memory/5100-146-0x0000000000400000-0x000000000047B000-memory.dmp
memory/5100-147-0x0000000000400000-0x000000000047B000-memory.dmp
memory/5100-148-0x0000000000400000-0x000000000047B000-memory.dmp
memory/5100-149-0x0000000000400000-0x000000000047B000-memory.dmp