Analysis
- max time kernel
149s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
- submitted
21/05/2024, 02:38
General
- Target HSBC PAYMENT CONFIRMATION COPY.PDF.exe
- Size 692KB
- Sample240521-c45dmafb45
- SHA256 c4e9719f719092bcb6dac7893d6e3601a32ff93a9ff5d51ba55af82cebd902f5
Malware Config
Extracted
-
remcos
-
RemoteHost
-
93.95.115.2:9462
-
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-VI6D4O
-
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.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Nirsoft 6 IoCs
- Loads dropped DLL 1 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Drops file in Program Files directory 3 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe" /stext "C:\Users\Admin\AppData\Local\Temp\isgrvjb"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe" /stext "C:\Users\Admin\AppData\Local\Temp\smmcvbmhmb"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe"C:\Users\Admin\AppData\Local\Temp\HSBC PAYMENT CONFIRMATION COPY.PDF.exe" /stext "C:\Users\Admin\AppData\Local\Temp\cozuwuwbajcyy"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
isgrvjb
System.dll
memory/224-16-0x0000000004A80000-0x0000000006AC0000-memory.dmp
memory/224-17-0x0000000077241000-0x0000000077361000-memory.dmp
memory/224-18-0x0000000073E94000-0x0000000073E95000-memory.dmp
memory/224-24-0x0000000004A80000-0x0000000006AC0000-memory.dmp
memory/996-36-0x0000000000400000-0x0000000000462000-memory.dmp
memory/996-42-0x0000000000400000-0x0000000000462000-memory.dmp
memory/996-27-0x0000000000400000-0x0000000000462000-memory.dmp
memory/996-37-0x0000000000400000-0x0000000000462000-memory.dmp
memory/3508-28-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3508-30-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3508-35-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3508-31-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3516-19-0x0000000001730000-0x0000000003770000-memory.dmp
memory/3516-56-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-90-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-87-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-48-0x0000000034740000-0x0000000034759000-memory.dmp
memory/3516-52-0x0000000034740000-0x0000000034759000-memory.dmp
memory/3516-20-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-51-0x0000000034740000-0x0000000034759000-memory.dmp
memory/3516-53-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-84-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-58-0x0000000001730000-0x0000000003770000-memory.dmp
memory/3516-60-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-81-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-63-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-66-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/3516-78-0x00000000004D0000-0x0000000001724000-memory.dmp
memory/4544-34-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4544-32-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4544-45-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4544-26-0x0000000000400000-0x0000000000478000-memory.dmp