Analysis
- max time kernel
149s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
04/06/2024, 02:02
General
- Target dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe
- Size 909KB
- Sample240604-cgf3hshe81
- SHA256 dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a
Malware Config
Extracted
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remcos
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KAYMASTER LOGS
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192.210.201.57:52499
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audio_folder
MicRecords
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audio_record_time
5
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connect_delay
0
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connect_interval
1
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copy_file
remcos.exe
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copy_folder
Remcos
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delete_file
false
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hide_file
false
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hide_keylog_file
false
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install_flag
false
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keylog_crypt
false
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keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-AZKWGZ
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screenshot_crypt
false
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screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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screenshot_time
10
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take_screenshot_option
false
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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) 24 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 8 IoCs
- Suspicious behavior: MapViewOfSection 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 36 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe"C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe"C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe"C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exeC:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe /stext "C:\Users\Admin\AppData\Local\Temp\zzznrdfenyj"3⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exeC:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe /stext "C:\Users\Admin\AppData\Local\Temp\jbegjvpybgciob"3⤵
- Accesses Microsoft Outlook accounts
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exeC:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe /stext "C:\Users\Admin\AppData\Local\Temp\mvszkoizpounqpabmm"3⤵
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exeC:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe /stext "C:\Users\Admin\AppData\Local\Temp\mvszkoizpounqpabmm"3⤵
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exeC:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe /stext "C:\Users\Admin\AppData\Local\Temp\mvszkoizpounqpabmm"3⤵
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C:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exeC:\Users\Admin\AppData\Local\Temp\dda1fa947466fe10367cab597941c144606d85b2d03efebee9acdb2c9b0e693a.exe /stext "C:\Users\Admin\AppData\Local\Temp\mvszkoizpounqpabmm"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
zzznrdfenyj
memory/1796-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-86-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-79-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-78-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-71-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-70-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-11-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-10-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-18-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-17-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-19-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-63-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-58-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1796-50-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1796-49-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1796-46-0x0000000010000000-0x0000000010019000-memory.dmp
memory/2428-31-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2428-39-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2428-34-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2428-27-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2428-44-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4596-33-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4596-29-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4596-32-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4596-35-0x0000000000400000-0x0000000000462000-memory.dmp
memory/4688-2-0x0000000005F60000-0x0000000006504000-memory.dmp
memory/4688-20-0x0000000075090000-0x0000000075840000-memory.dmp
memory/4688-4-0x0000000005B60000-0x0000000005B6A000-memory.dmp
memory/4688-5-0x0000000075090000-0x0000000075840000-memory.dmp
memory/4688-0-0x000000007509E000-0x000000007509F000-memory.dmp
memory/4688-1-0x0000000000ED0000-0x0000000000FBA000-memory.dmp
memory/4688-3-0x00000000059B0000-0x0000000005A42000-memory.dmp
memory/4688-6-0x00000000073C0000-0x00000000073D8000-memory.dmp
memory/4688-9-0x0000000009F80000-0x000000000A01C000-memory.dmp
memory/4688-8-0x0000000007880000-0x0000000007940000-memory.dmp
memory/4688-7-0x0000000005DF0000-0x0000000005E00000-memory.dmp
memory/4788-40-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4788-42-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4788-41-0x0000000000400000-0x0000000000424000-memory.dmp