Analysis
- max time kernel
148s - max time network
129s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
07/08/2024, 11:05
General
- Target MalwareBazaar.exe
- Size 863KB
- Sample240807-m63b6a1cpg
- SHA256 c2cf1032ae671d0bcba6d625bc72236b125f864a1bb6114c6b96a8e0c91c6759
Malware Config
Extracted
-
remcos
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RemoteHost
-
194.169.175.190:2404
-
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-LBZ2BK
-
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.
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Detected Nirsoft tools 6 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- UPX packed file 2 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
- Suspicious use of SetThreadContext 4 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of FindShellTrayWindow 2 IoCs
- Suspicious use of SendNotifyMessage 2 IoCs
- Suspicious use of WriteProcessMemory 19 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"2⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\apwzjjcyrj"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\drbskcnafrwun"3⤵
-
-
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\drbskcnafrwun"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe /stext "C:\Users\Admin\AppData\Local\Temp\nmhkcuyutzozprjh"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
apwzjjcyrj
memory/3624-52-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3624-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-61-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-59-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/3624-51-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3624-48-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3784-46-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3784-27-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3784-32-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3784-41-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3784-40-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4040-39-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4040-35-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4040-36-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4040-31-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4736-33-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4736-38-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4736-37-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4736-29-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4744-0-0x0000000000F70000-0x000000000114B000-memory.dmp
memory/4744-12-0x0000000000F30000-0x0000000000F34000-memory.dmp
memory/4744-17-0x0000000000F70000-0x000000000114B000-memory.dmp