Analysis
- max time kernel
148s - max time network
137s - platform
windows10-2004_x64 - resource
win10v2004-20240704-en - resource tags
- submitted
18/07/2024, 03:00
General
- Target MalwareBazaar.exe
- Size 922KB
- Sample240718-dhmgcsvhkg
- SHA256 79c7358a9ac82f4d547e027ec64b8a9854ef445ff7d1e85a2b39c0e60bc00c99
Malware Config
Extracted
-
remcos
-
RemoteHost
-
107.175.229.139:8823
-
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-2BGC0K
-
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.
- Detected Nirsoft tools 4 IoCs
Free utilities often used by attackers which can steal passwords, product keys, etc.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Drops startup file 2 IoCs
- 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 4 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Using powershell.exe command.
- Suspicious behavior: EnumeratesProcesses 8 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 30 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe"Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.exe'2⤵
- Drops startup file
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"2⤵
- Suspicious use of SetThreadContext
- 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\ekspfaflowbrurcudztanlarlnucgwvjgl"3⤵
- 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\omxhft"3⤵
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exeC:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\omxhft"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exeC:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe /stext "C:\Users\Admin\AppData\Local\Temp\rglagligqm"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_lwbz5ps3.jnm.ps1
ekspfaflowbrurcudztanlarlnucgwvjgl
memory/432-4-0x0000000005700000-0x000000000570A000-memory.dmp
memory/432-3-0x00000000055D0000-0x0000000005662000-memory.dmp
memory/432-5-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/432-6-0x0000000005870000-0x000000000591E000-memory.dmp
memory/432-7-0x00000000059C0000-0x0000000005A5C000-memory.dmp
memory/432-2-0x0000000005A80000-0x0000000006024000-memory.dmp
memory/432-1-0x0000000000B00000-0x0000000000BEC000-memory.dmp
memory/432-28-0x0000000005740000-0x0000000005748000-memory.dmp
memory/432-38-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/432-0-0x00000000743DE000-0x00000000743DF000-memory.dmp
memory/1492-56-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1492-54-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1492-58-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2760-62-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2760-61-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2760-55-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2760-67-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2760-52-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3100-60-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3100-59-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3100-57-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3916-15-0x0000000005D40000-0x0000000005DA6000-memory.dmp
memory/3916-26-0x0000000006360000-0x000000000637E000-memory.dmp
memory/3916-8-0x0000000002A50000-0x0000000002A86000-memory.dmp
memory/3916-9-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3916-39-0x0000000007330000-0x00000000073C6000-memory.dmp
memory/3916-40-0x0000000006850000-0x000000000686A000-memory.dmp
memory/3916-41-0x00000000068B0000-0x00000000068D2000-memory.dmp
memory/3916-45-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3916-10-0x00000000056A0000-0x0000000005CC8000-memory.dmp
memory/3916-11-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3916-12-0x00000000743D0000-0x0000000074B80000-memory.dmp
memory/3916-13-0x00000000054A0000-0x00000000054C2000-memory.dmp
memory/3916-14-0x0000000005CD0000-0x0000000005D36000-memory.dmp
memory/3916-25-0x0000000005DB0000-0x0000000006104000-memory.dmp
memory/3916-27-0x0000000006390000-0x00000000063DC000-memory.dmp
memory/4592-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-70-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4592-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-73-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4592-74-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4592-29-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-76-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-77-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-81-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-32-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-86-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-85-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-93-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-94-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-101-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-102-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-109-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4592-110-0x0000000000400000-0x0000000000482000-memory.dmp