Analysis
- max time kernel
148s - max time network
151s - platform
windows7_x64 - resource
win7-20240903-en - resource tags
- submitted
18/10/2024, 02:57
General
- Target e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe
- Size 1.0MB
- Sample241018-dftgwsshre
- SHA256 e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f
Malware Config
Extracted
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remcos
-
RemoteHost
-
162.251.122.111:2404
-
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-JXEKG5
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detected Nirsoft tools 9 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
- Loads dropped DLL 1 IoCs
- Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 2 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 18 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe"C:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe"C:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- 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\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exeC:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe /stext "C:\Users\Admin\AppData\Local\Temp\kuggzo"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exeC:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe /stext "C:\Users\Admin\AppData\Local\Temp\uolrzhglg"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exeC:\Users\Admin\AppData\Local\Temp\e3fe07f87b41a5b796c4bf9d657c482367668ea4de33fa86bf6bc75b9904357f.exe /stext "C:\Users\Admin\AppData\Local\Temp\fqqjazrmucxw"3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
logs.dat
kuggzo
System.dll
memory/840-41-0x0000000000400000-0x0000000000462000-memory.dmp
memory/840-39-0x0000000000400000-0x0000000000462000-memory.dmp
memory/840-38-0x0000000000400000-0x0000000000462000-memory.dmp
memory/840-44-0x0000000000400000-0x0000000000462000-memory.dmp
memory/840-60-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1592-51-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1592-46-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1592-47-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1592-48-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1592-45-0x0000000000400000-0x0000000000424000-memory.dmp
memory/2424-66-0x00000000339C0000-0x00000000339D9000-memory.dmp
memory/2424-19-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-36-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-31-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-28-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-25-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-23-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-91-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-88-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-67-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-85-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-82-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-17-0x0000000076FC0000-0x0000000077169000-memory.dmp
memory/2424-79-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-77-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-74-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-62-0x00000000339C0000-0x00000000339D9000-memory.dmp
memory/2424-71-0x0000000000470000-0x00000000014D2000-memory.dmp
memory/2424-65-0x00000000339C0000-0x00000000339D9000-memory.dmp
memory/2656-43-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2656-56-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2656-40-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2656-42-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2656-37-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2960-14-0x0000000003450000-0x0000000004975000-memory.dmp
memory/2960-16-0x0000000076FC0000-0x0000000077169000-memory.dmp
memory/2960-15-0x0000000076FC1000-0x00000000770C2000-memory.dmp
memory/2960-18-0x0000000003450000-0x0000000004975000-memory.dmp