Analysis
- max time kernel
299s - max time network
282s - platform
windows10-1703_x64 - resource
win10-20240611-en - resource tags
- submitted
25/07/2024, 22:37
General
- Target 471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exe
- Size 487KB
- Sample240725-2j2jnssdld
- SHA256 471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6
Malware Config
Extracted
-
remcos
-
RemoteHost
-
127.0.0.1:52121
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officerem.duckdns.org:52121
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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-UNX1LL
-
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.
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- Detected Nirsoft tools 8 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
- 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 3 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exe"C:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exe"1⤵
- 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\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exeC:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\odhenqgvdrtshnlxzqxqhxqjia"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exeC:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\yfuwnbrwralxjbzbqbsrskcsrpielh"2⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
C:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exeC:\Users\Admin\AppData\Local\Temp\471ec39d465941f831c4b1bec39996aa7b787e7f8d3a06f9d025fa9c9b8537f6.exe /stext "C:\Users\Admin\AppData\Local\Temp\jzzpgtbqfidcthwfamflvpxjavanesuwf"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
logs.dat
odhenqgvdrtshnlxzqxqhxqjia
memory/240-31-0x0000000000400000-0x0000000000424000-memory.dmp
memory/240-22-0x0000000000400000-0x0000000000424000-memory.dmp
memory/240-30-0x0000000000400000-0x0000000000424000-memory.dmp
memory/240-32-0x0000000000400000-0x0000000000424000-memory.dmp
memory/348-20-0x0000000000400000-0x0000000000462000-memory.dmp
memory/348-24-0x0000000000400000-0x0000000000462000-memory.dmp
memory/348-26-0x0000000000400000-0x0000000000462000-memory.dmp
memory/348-28-0x0000000000400000-0x0000000000462000-memory.dmp
memory/348-33-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1636-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1636-21-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1636-27-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1636-18-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1636-25-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1856-7-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-0-0x0000000000590000-0x0000000000615000-memory.dmp
memory/1856-11-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-12-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-10-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-9-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-16-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-8-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-15-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-5-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-6-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-14-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-2-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-40-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1856-44-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1856-43-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1856-46-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-47-0x0000000000590000-0x0000000000615000-memory.dmp
memory/1856-49-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-1-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-55-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-56-0x00000000006F0000-0x0000000000772000-memory.dmp
memory/1856-66-0x00000000006F0000-0x0000000000772000-memory.dmp