Analysis
- max time kernel
147s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
24/09/2024, 01:53
General
- Target CI-TLN0124796CMACGM.scr
- Size 915KB
- Sample240924-ca78eswcnf
- SHA256 d00a443bf00b909b32fbd9894462283fca5788e28b96a9e729f43fc4f2ca585a
Malware Config
Extracted
-
remcos
-
GeneralWire-Slaves
-
milliondollar23.duckdns.org:3984
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
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-TWU43D
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 9 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CI-TLN0124796CMACGM.scr"C:\Users\Admin\AppData\Local\Temp\CI-TLN0124796CMACGM.scr" /S1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\CI-TLN0124796CMACGM.scr"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LdtceRaylJq.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LdtceRaylJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB4C4.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\CI-TLN0124796CMACGM.scr"C:\Users\Admin\AppData\Local\Temp\CI-TLN0124796CMACGM.scr"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
-
-
C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3820,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=1424 /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_ihg5wwki.llz.ps1
tmpB4C4.tmp
memory/1048-94-0x0000000007DB0000-0x0000000007DBE000-memory.dmp
memory/1048-21-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/1048-93-0x0000000007D80000-0x0000000007D91000-memory.dmp
memory/1048-96-0x0000000007EC0000-0x0000000007EDA000-memory.dmp
memory/1048-91-0x0000000007BF0000-0x0000000007BFA000-memory.dmp
memory/1048-90-0x0000000007B80000-0x0000000007B9A000-memory.dmp
memory/1048-89-0x00000000081C0000-0x000000000883A000-memory.dmp
memory/1048-68-0x0000000075AD0000-0x0000000075B1C000-memory.dmp
memory/1048-17-0x0000000005920000-0x0000000005F48000-memory.dmp
memory/1048-104-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/1048-20-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/1048-33-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/4756-36-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/4756-1-0x0000000000B60000-0x0000000000C4A000-memory.dmp
memory/4756-7-0x000000007524E000-0x000000007524F000-memory.dmp
memory/4756-8-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/4756-9-0x0000000007370000-0x0000000007430000-memory.dmp
memory/4756-10-0x0000000009AA0000-0x0000000009B3C000-memory.dmp
memory/4756-4-0x0000000005600000-0x000000000560A000-memory.dmp
memory/4756-3-0x0000000005670000-0x0000000005702000-memory.dmp
memory/4756-2-0x0000000005C20000-0x00000000061C4000-memory.dmp
memory/4756-0-0x000000007524E000-0x000000007524F000-memory.dmp
memory/4756-5-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/4756-6-0x00000000058D0000-0x00000000058E2000-memory.dmp
memory/5212-37-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-61-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-107-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-112-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-113-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-129-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-136-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-128-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-137-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-120-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-121-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5212-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5492-34-0x0000000005510000-0x0000000005864000-memory.dmp
memory/5492-95-0x0000000007050000-0x0000000007064000-memory.dmp
memory/5492-92-0x0000000007090000-0x0000000007126000-memory.dmp
memory/5492-97-0x0000000007130000-0x0000000007138000-memory.dmp
memory/5492-103-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/5492-88-0x0000000006B00000-0x0000000006BA3000-memory.dmp
memory/5492-67-0x0000000075AD0000-0x0000000075B1C000-memory.dmp
memory/5492-66-0x0000000006AC0000-0x0000000006AF2000-memory.dmp
memory/5492-86-0x0000000006090000-0x00000000060AE000-memory.dmp
memory/5492-57-0x0000000005AF0000-0x0000000005B0E000-memory.dmp
memory/5492-58-0x0000000005E90000-0x0000000005EDC000-memory.dmp
memory/5492-26-0x0000000005380000-0x00000000053E6000-memory.dmp
memory/5492-35-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/5492-27-0x00000000054A0000-0x0000000005506000-memory.dmp
memory/5492-22-0x0000000004B20000-0x0000000004B42000-memory.dmp
memory/5492-18-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/5492-16-0x0000000075240000-0x00000000759F0000-memory.dmp
memory/5492-15-0x0000000004570000-0x00000000045A6000-memory.dmp