Analysis
- max time kernel
150s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
31/07/2023, 07:15
General
- Target cef984ffee5314e72aee4366945e20a5.exe
- Size 398KB
- Sample230731-h28adsdb93
- SHA256 08f99aa27cbedd18401cfae07c7dd2e79966c6f63777fb95bc7a73c5cad5a537
Malware Config
Extracted
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remcos
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RemoteHost
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top.noforabusers1.xyz:30890
-
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
-
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
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-7H7JST
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screenshot_crypt
false
-
screenshot_flag
false
-
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
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 3 IoCs
Password recovery tool for various web browsers
- Nirsoft 8 IoCs
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Drops file in System32 directory 1 IoCs
- Suspicious use of SetThreadContext 4 IoCs
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious behavior: MapViewOfSection 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 24 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
-
C:\Users\Admin\AppData\Local\Temp\cef984ffee5314e72aee4366945e20a5.exe"C:\Users\Admin\AppData\Local\Temp\cef984ffee5314e72aee4366945e20a5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\mlqdxtrxagx"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\ogvvqmkyooppne"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe /stext "C:\Users\Admin\AppData\Local\Temp\ziboqeuscwhuxkzac"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
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C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
mlqdxtrxagx
memory/1164-139-0x0000000074820000-0x0000000074FD0000-memory.dmp
memory/1164-134-0x0000000000D80000-0x0000000000DEC000-memory.dmp
memory/1164-133-0x0000000074820000-0x0000000074FD0000-memory.dmp
memory/1984-163-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1984-150-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1984-161-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1984-170-0x0000000000400000-0x0000000000478000-memory.dmp
memory/1984-156-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2672-168-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2672-160-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2672-155-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2672-151-0x0000000000400000-0x0000000000457000-memory.dmp
memory/3328-145-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-188-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-147-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-196-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-146-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-144-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-143-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-142-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-195-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-141-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-192-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-191-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-138-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-136-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-135-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-172-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3328-176-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3328-177-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-184-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-190-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-186-0x0000000010000000-0x0000000010019000-memory.dmp
memory/3328-187-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-149-0x0000000000400000-0x0000000000481000-memory.dmp
memory/3328-189-0x0000000000400000-0x0000000000481000-memory.dmp
memory/4636-185-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4636-164-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4636-162-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4636-158-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4636-154-0x0000000000400000-0x0000000000424000-memory.dmp