Analysis
- max time kernel
149s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
10/07/2024, 01:01
General
- Target MalwareBazaar.exe
- Size 972KB
- Sample240710-bdgdfawgmp
- SHA256 a11fc46a492edb3f53615fb17ed37b26a9bbffa286a757d28fa235e1380a7c41
Malware Config
Extracted
-
remcos
-
5764576
-
172.93.218.178:45667
-
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-XJJE0J
-
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).
- 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 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 21 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- 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\Roaming\XxbqQxWTC.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XxbqQxWTC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDB5C.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"2⤵
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"2⤵
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_z5xsl3ur.ajy.ps1
tmpDB5C.tmp
memory/3264-6-0x0000000005250000-0x0000000005352000-memory.dmp
memory/3264-3-0x0000000004FF0000-0x0000000005082000-memory.dmp
memory/3264-4-0x0000000005090000-0x000000000509A000-memory.dmp
memory/3264-5-0x0000000074E70000-0x0000000075620000-memory.dmp
memory/3264-33-0x0000000074E70000-0x0000000075620000-memory.dmp
memory/3264-7-0x0000000005410000-0x0000000005422000-memory.dmp
memory/3264-8-0x0000000006390000-0x0000000006398000-memory.dmp
memory/3264-9-0x00000000063A0000-0x00000000063AE000-memory.dmp
memory/3264-10-0x0000000006410000-0x00000000064CE000-memory.dmp
memory/3264-11-0x0000000008D90000-0x0000000008E2C000-memory.dmp
memory/3264-2-0x00000000054C0000-0x0000000005A64000-memory.dmp
memory/3264-0-0x0000000074E7E000-0x0000000074E7F000-memory.dmp
memory/3264-1-0x0000000000500000-0x00000000005F8000-memory.dmp
memory/3968-80-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-31-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-79-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-77-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-24-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-26-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-76-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-75-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-28-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-46-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-81-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-82-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-74-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-30-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-29-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-47-0x0000000000400000-0x000000000047F000-memory.dmp
memory/3968-45-0x0000000000400000-0x000000000047F000-memory.dmp
memory/4812-18-0x00000000058E0000-0x0000000005F08000-memory.dmp
memory/4812-44-0x0000000006700000-0x000000000674C000-memory.dmp
memory/4812-43-0x0000000006630000-0x000000000664E000-memory.dmp
memory/4812-50-0x0000000007630000-0x0000000007662000-memory.dmp
memory/4812-51-0x0000000075700000-0x000000007574C000-memory.dmp
memory/4812-61-0x0000000006BC0000-0x0000000006BDE000-memory.dmp
memory/4812-62-0x0000000007670000-0x0000000007713000-memory.dmp
memory/4812-63-0x0000000007FA0000-0x000000000861A000-memory.dmp
memory/4812-64-0x0000000007950000-0x000000000796A000-memory.dmp
memory/4812-65-0x00000000079C0000-0x00000000079CA000-memory.dmp
memory/4812-66-0x0000000007BD0000-0x0000000007C66000-memory.dmp
memory/4812-67-0x0000000007B50000-0x0000000007B61000-memory.dmp
memory/4812-68-0x0000000007B80000-0x0000000007B8E000-memory.dmp
memory/4812-69-0x0000000007B90000-0x0000000007BA4000-memory.dmp
memory/4812-70-0x0000000007C90000-0x0000000007CAA000-memory.dmp
memory/4812-71-0x0000000007C70000-0x0000000007C78000-memory.dmp
memory/4812-73-0x0000000074E70000-0x0000000075620000-memory.dmp
memory/4812-32-0x0000000006080000-0x00000000063D4000-memory.dmp
memory/4812-22-0x0000000005600000-0x0000000005666000-memory.dmp
memory/4812-25-0x0000000074E70000-0x0000000075620000-memory.dmp
memory/4812-23-0x0000000006010000-0x0000000006076000-memory.dmp
memory/4812-21-0x0000000005560000-0x0000000005582000-memory.dmp
memory/4812-20-0x0000000074E70000-0x0000000075620000-memory.dmp
memory/4812-19-0x0000000074E70000-0x0000000075620000-memory.dmp
memory/4812-16-0x0000000002D10000-0x0000000002D46000-memory.dmp