Analysis
- max time kernel
153s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
09/05/2024, 10:59
General
- Target 3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe
- Size 1.0MB
- Sample240509-m3d56aea4w
- SHA256 3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772
Malware Config
Extracted
-
remcos
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STHost
-
89.249.73.162:2479
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
-
copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
-
hide_file
false
-
hide_keylog_file
false
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install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-TH3UQH
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screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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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 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).
- Creates scheduled task(s) 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 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"1⤵
- Checks computer location settings
- 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" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\siRiSxOKgeg.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\siRiSxOKgeg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7EA1.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"C:\Users\Admin\AppData\Local\Temp\3dbe769bb2675de3bada40f257ce820b7356c2acb79bb3d4509d145fc9150772.exe"2⤵
- Suspicious use of SetWindowsHookEx
-
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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 --no-appcompat-clear --mojo-platform-channel-handle=3776 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:81⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_4ovw5gge.v0l.ps1
tmp7EA1.tmp
memory/2920-44-0x0000000005AF0000-0x0000000005E44000-memory.dmp
memory/2920-16-0x00000000027B0000-0x00000000027E6000-memory.dmp
memory/2920-45-0x0000000006100000-0x000000000611E000-memory.dmp
memory/2920-73-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/2920-69-0x0000000007740000-0x0000000007748000-memory.dmp
memory/2920-68-0x0000000007750000-0x000000000776A000-memory.dmp
memory/2920-67-0x0000000007660000-0x0000000007674000-memory.dmp
memory/2920-66-0x0000000007650000-0x000000000765E000-memory.dmp
memory/2920-15-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/2920-46-0x0000000006190000-0x00000000061DC000-memory.dmp
memory/2920-65-0x0000000007620000-0x0000000007631000-memory.dmp
memory/2920-18-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/2920-20-0x0000000005230000-0x0000000005858000-memory.dmp
memory/2920-64-0x0000000007680000-0x0000000007716000-memory.dmp
memory/2920-62-0x0000000007470000-0x000000000747A000-memory.dmp
memory/2920-61-0x0000000007400000-0x000000000741A000-memory.dmp
memory/2920-60-0x0000000007A50000-0x00000000080CA000-memory.dmp
memory/2920-25-0x0000000005030000-0x0000000005052000-memory.dmp
memory/2920-26-0x0000000005860000-0x00000000058C6000-memory.dmp
memory/2920-59-0x00000000070E0000-0x0000000007183000-memory.dmp
memory/2920-47-0x00000000066F0000-0x0000000006722000-memory.dmp
memory/2920-29-0x0000000005A80000-0x0000000005AE6000-memory.dmp
memory/2920-58-0x00000000066B0000-0x00000000066CE000-memory.dmp
memory/2920-48-0x0000000071340000-0x000000007138C000-memory.dmp
memory/3572-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-103-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-89-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-28-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-76-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-96-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-95-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-90-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3572-77-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4656-27-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/4656-6-0x00000000055F0000-0x0000000005610000-memory.dmp
memory/4656-7-0x0000000074B8E000-0x0000000074B8F000-memory.dmp
memory/4656-8-0x0000000005610000-0x0000000005624000-memory.dmp
memory/4656-1-0x0000000000950000-0x0000000000A56000-memory.dmp
memory/4656-9-0x00000000097B0000-0x0000000009870000-memory.dmp
memory/4656-10-0x000000000C910000-0x000000000C9AC000-memory.dmp
memory/4656-5-0x0000000005460000-0x000000000546A000-memory.dmp
memory/4656-17-0x0000000074B80000-0x0000000075330000-memory.dmp
memory/4656-3-0x00000000054C0000-0x0000000005552000-memory.dmp
memory/4656-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp
memory/4656-2-0x00000000059D0000-0x0000000005F74000-memory.dmp
memory/4656-4-0x0000000074B80000-0x0000000075330000-memory.dmp