Analysis
- max time kernel
150s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
17/09/2024, 15:07
General
- Target DHL DOC 411744484099.exe
- Size 863KB
- Sample240917-shbgeszdmm
- SHA256 cb2b849e4d24527ba41c0e5ae3982ecde5bd91b94b5ae8bb27dc221b4c775891
Malware Config
Extracted
-
remcos
-
3456789
-
172.93.220.148:45682
-
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
765-8M14I5
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
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.
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 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 4 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 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DHL DOC 411744484099.exe"C:\Users\Admin\AppData\Local\Temp\DHL DOC 411744484099.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- 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\Roaming\bUwNWDK.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\bUwNWDK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEE09.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\DHL DOC 411744484099.exe"C:\Users\Admin\AppData\Local\Temp\DHL DOC 411744484099.exe"2⤵
- System Location Discovery: System Language Discovery
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_13q1duyy.030.ps1
tmpEE09.tmp
memory/4016-0-0x0000000074FBE000-0x0000000074FBF000-memory.dmp
memory/4016-1-0x0000000000F00000-0x0000000000FDE000-memory.dmp
memory/4016-2-0x0000000005ED0000-0x0000000006474000-memory.dmp
memory/4016-3-0x00000000059C0000-0x0000000005A52000-memory.dmp
memory/4016-4-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4016-5-0x0000000005990000-0x000000000599A000-memory.dmp
memory/4016-6-0x00000000072F0000-0x00000000073C2000-memory.dmp
memory/4016-7-0x0000000005C40000-0x0000000005C4E000-memory.dmp
memory/4016-8-0x0000000074FBE000-0x0000000074FBF000-memory.dmp
memory/4016-9-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4016-10-0x0000000007850000-0x000000000790E000-memory.dmp
memory/4016-11-0x0000000009E90000-0x0000000009F2C000-memory.dmp
memory/4016-41-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4696-35-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-30-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-81-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-82-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-33-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-32-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-46-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-78-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-29-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-48-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-44-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4696-45-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4892-43-0x00000000065B0000-0x00000000065FC000-memory.dmp
memory/4892-20-0x0000000005670000-0x0000000005692000-memory.dmp
memory/4892-49-0x0000000006AE0000-0x0000000006B12000-memory.dmp
memory/4892-50-0x000000006FAC0000-0x000000006FB0C000-memory.dmp
memory/4892-60-0x0000000006AC0000-0x0000000006ADE000-memory.dmp
memory/4892-61-0x0000000007500000-0x00000000075A3000-memory.dmp
memory/4892-62-0x0000000007E90000-0x000000000850A000-memory.dmp
memory/4892-63-0x0000000007840000-0x000000000785A000-memory.dmp
memory/4892-64-0x00000000078C0000-0x00000000078CA000-memory.dmp
memory/4892-65-0x0000000007AC0000-0x0000000007B56000-memory.dmp
memory/4892-66-0x0000000007A40000-0x0000000007A51000-memory.dmp
memory/4892-67-0x0000000007A70000-0x0000000007A7E000-memory.dmp
memory/4892-68-0x0000000007A80000-0x0000000007A94000-memory.dmp
memory/4892-69-0x0000000007B80000-0x0000000007B9A000-memory.dmp
memory/4892-70-0x0000000007B60000-0x0000000007B68000-memory.dmp
memory/4892-73-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4892-21-0x0000000005E40000-0x0000000005EA6000-memory.dmp
memory/4892-22-0x0000000005EB0000-0x0000000005F16000-memory.dmp
memory/4892-42-0x0000000006520000-0x000000000653E000-memory.dmp
memory/4892-25-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4892-34-0x0000000005F20000-0x0000000006274000-memory.dmp
memory/4892-36-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4892-17-0x0000000074FB0000-0x0000000075760000-memory.dmp
memory/4892-18-0x00000000056A0000-0x0000000005CC8000-memory.dmp
memory/4892-16-0x0000000002C10000-0x0000000002C46000-memory.dmp