Analysis
- max time kernel
148s - max time network
155s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
29/07/2024, 14:06
General
- Target MalwareBazaar.exe
- Size 483KB
- Sample240729-rek11swbrf
- SHA256 7f1c8e9959fdc113e0c01ef42588a6df6d4fe75c0edb632179fe0ec3bff84136
Malware Config
Extracted
-
remcos
-
RemoteHost
-
wemberdag.duckdns.org:31388
-
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
logs
-
keylog_path
%AppData%
-
mouse_option
false
-
mutex
Rmc-LBUX79
-
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 8 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 3 IoCs
- 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.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 9 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 SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exeC:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\grjweszspptvdddxqcbkdsyj"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exeC:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\ilopfkkldxlanjrbhmolgxsabqf"2⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exeC:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\touzfdvnrfdnpxnfqxifqknjkepkin"2⤵
- 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
grjweszspptvdddxqcbkdsyj
logs.dat
memory/804-11-0x0000000000400000-0x0000000000424000-memory.dmp
memory/804-8-0x0000000000400000-0x0000000000424000-memory.dmp
memory/804-17-0x0000000000400000-0x0000000000424000-memory.dmp
memory/804-25-0x0000000000400000-0x0000000000424000-memory.dmp
memory/804-23-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2600-16-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2600-14-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2600-4-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2600-12-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2600-21-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4548-34-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4548-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4548-33-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4548-30-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4548-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4696-3-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4696-27-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4696-10-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4696-15-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4696-13-0x0000000000400000-0x0000000000478000-memory.dmp