Analysis
- max time kernel
150s - max time network
158s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
19/07/2024, 10:05
General
- Target MalwareBazaar.exe
- Size 908KB
- Sample240719-l4mm9ayfle
- SHA256 665029b14081d957509bdf72be22ab7fd8f5aa2f63ad55339fe4d006647b9a29
Malware Config
Extracted
-
remcos
-
NewRemcosFile
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185.29.9.110:2404
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tradezonedns.duckdns.org:2404
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www.ozkol-aluminyum.com:2404
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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
vipvipvip
-
mouse_option
false
-
mutex
Rmc-42D02C
-
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.
- Uses the VBS compiler for execution 1 TTPs
- 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 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\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\Local\Temp\MalwareBazaar.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- 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\ZSsJaPlbmNJLf.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\ZSsJaPlbmNJLf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC3FC.tmp"2⤵
- Scheduled Task/Job: Scheduled Task
-
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
powershell.exe.log
StartupProfileData-NonInteractive
__PSScriptPolicyTest_gisf22vk.og0.ps1
tmpC3FC.tmp
memory/1692-118-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-134-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-110-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-109-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-119-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-102-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-126-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-127-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-34-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-39-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1692-135-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3620-22-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3620-14-0x0000000002780000-0x00000000027B6000-memory.dmp
memory/3620-16-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3620-23-0x0000000005A60000-0x0000000005DB4000-memory.dmp
memory/3620-53-0x0000000006070000-0x000000000608E000-memory.dmp
memory/3620-55-0x00000000065C0000-0x000000000660C000-memory.dmp
memory/3620-99-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3620-18-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/3620-19-0x00000000052A0000-0x00000000052C2000-memory.dmp
memory/3620-20-0x0000000005980000-0x00000000059E6000-memory.dmp
memory/3620-91-0x00000000076E0000-0x00000000076FA000-memory.dmp
memory/3620-21-0x00000000059F0000-0x0000000005A56000-memory.dmp
memory/3620-61-0x0000000007050000-0x0000000007082000-memory.dmp
memory/3620-62-0x0000000075450000-0x000000007549C000-memory.dmp
memory/3620-90-0x00000000075E0000-0x00000000075F4000-memory.dmp
memory/3620-82-0x0000000006620000-0x000000000663E000-memory.dmp
memory/3620-89-0x00000000075D0000-0x00000000075DE000-memory.dmp
memory/3620-84-0x00000000073A0000-0x00000000073BA000-memory.dmp
memory/3620-87-0x0000000007620000-0x00000000076B6000-memory.dmp
memory/3620-86-0x0000000007410000-0x000000000741A000-memory.dmp
memory/4364-41-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4364-88-0x0000000007D30000-0x0000000007D41000-memory.dmp
memory/4364-83-0x00000000079E0000-0x0000000007A83000-memory.dmp
memory/4364-72-0x0000000075450000-0x000000007549C000-memory.dmp
memory/4364-85-0x0000000008170000-0x00000000087EA000-memory.dmp
memory/4364-92-0x0000000007E50000-0x0000000007E58000-memory.dmp
memory/4364-52-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4364-54-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4364-98-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4364-15-0x0000000005890000-0x0000000005EB8000-memory.dmp
memory/4684-42-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4684-9-0x00000000088A0000-0x000000000893C000-memory.dmp
memory/4684-0-0x0000000074BCE000-0x0000000074BCF000-memory.dmp
memory/4684-8-0x0000000006290000-0x0000000006350000-memory.dmp
memory/4684-7-0x00000000053C0000-0x00000000053CE000-memory.dmp
memory/4684-6-0x0000000005380000-0x000000000539A000-memory.dmp
memory/4684-5-0x0000000074BC0000-0x0000000075370000-memory.dmp
memory/4684-4-0x0000000004E60000-0x0000000004E6A000-memory.dmp
memory/4684-3-0x0000000004F30000-0x0000000004FC2000-memory.dmp
memory/4684-2-0x0000000005440000-0x00000000059E4000-memory.dmp
memory/4684-1-0x00000000004C0000-0x00000000005A8000-memory.dmp