Analysis
- max time kernel
147s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
23/05/2024, 01:54
General
- Target ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe
- Size 926KB
- Sample240523-cbvcyshe21
- SHA256 ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf
Malware Config
Extracted
-
remcos
-
RemoteHost
-
104.250.180.178:7902
-
audio_folder
MicRecords
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
Microsoft .exe
-
copy_folder
Microsoft
-
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
Microsoft -QUCX7D
-
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.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 20 IoCs
- Detects executables built or packed with MPress PE compressor 15 IoCs
- Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 2 IoCs
- Detects executables referencing many email and collaboration clients. Observed in information stealers 2 IoCs
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 6 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
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe"C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe"C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exeC:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe /stext "C:\Users\Admin\AppData\Local\Temp\oudxuopclijvuevrrxlrfsorzlgzoj"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exeC:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe /stext "C:\Users\Admin\AppData\Local\Temp\roiqnhiwzqbzxsrviiytifaiisyapmjwa"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exeC:\Users\Admin\AppData\Local\Temp\ac28e104b06d7025bab07468070e74b3ea0017b34d25e48150b6c55f8ffda4bf.exe /stext "C:\Users\Admin\AppData\Local\Temp\binan"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
oudxuopclijvuevrrxlrfsorzlgzoj
memory/1192-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1192-30-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1192-28-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1192-24-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1192-41-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4272-5-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/4272-17-0x0000000074E40000-0x00000000755F0000-memory.dmp
memory/4272-8-0x0000000005FB0000-0x0000000005FC0000-memory.dmp
memory/4272-9-0x00000000072B0000-0x0000000007370000-memory.dmp
memory/4272-10-0x0000000009950000-0x00000000099EC000-memory.dmp
memory/4272-0-0x0000000074E4E000-0x0000000074E4F000-memory.dmp
memory/4272-6-0x0000000007050000-0x0000000007132000-memory.dmp
memory/4272-1-0x0000000000F20000-0x000000000100E000-memory.dmp
memory/4272-4-0x0000000005BA0000-0x0000000005BAA000-memory.dmp
memory/4272-3-0x0000000005A10000-0x0000000005AA2000-memory.dmp
memory/4272-7-0x0000000007130000-0x000000000714A000-memory.dmp
memory/4272-2-0x0000000005FC0000-0x0000000006564000-memory.dmp
memory/4544-33-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4544-37-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4544-32-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4984-47-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4984-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-57-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-15-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-11-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-46-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4984-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-44-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4984-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4984-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5092-26-0x0000000000400000-0x0000000000462000-memory.dmp
memory/5092-29-0x0000000000400000-0x0000000000462000-memory.dmp
memory/5092-31-0x0000000000400000-0x0000000000462000-memory.dmp
memory/5092-39-0x0000000000400000-0x0000000000462000-memory.dmp