Analysis
- max time kernel
148s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
06/08/2024, 19:40
General
- Target DN TK 7239 (ETA 09 August, 2024)DHL#3272524765pdf.exe
- Size 670KB
- Sample240806-ydhmtssbmc
- SHA256 39c096e77e2ce57c75d07b577dbf5899b5e883a3d3435a0a3d0313a52718496a
Malware Config
Extracted
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remcos
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RemoteHost
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194.169.175.190:2404
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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
-
install_flag
false
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keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
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keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-LBZ2BK
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screenshot_crypt
false
-
screenshot_flag
false
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screenshot_folder
Screenshots
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screenshot_path
%AppData%
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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
- Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
- Suspicious use of SetThreadContext 4 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 WriteProcessMemory 24 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\DN TK 7239 (ETA 09 August, 2024)DHL#3272524765pdf.exe"C:\Users\Admin\AppData\Local\Temp\DN TK 7239 (ETA 09 August, 2024)DHL#3272524765pdf.exe"1⤵
- Suspicious use of SetThreadContext
- 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
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
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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\fvzzle"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
-
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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\hpmjmwmlc"3⤵
- Accesses Microsoft Outlook accounts
- System Location Discovery: System Language Discovery
-
-
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\srscnhxepeycy"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
fvzzle
memory/1560-36-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1560-26-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1560-23-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1560-28-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1560-19-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2232-4-0x00007FF8A7750000-0x00007FF8A8211000-memory.dmp
memory/2232-9-0x00007FF8A7750000-0x00007FF8A8211000-memory.dmp
memory/2232-3-0x000002814A410000-0x000002814A424000-memory.dmp
memory/2232-2-0x00000281644F0000-0x000002816456E000-memory.dmp
memory/2232-0-0x00007FF8A7753000-0x00007FF8A7755000-memory.dmp
memory/2232-1-0x0000028149FC0000-0x000002814A06C000-memory.dmp
memory/3288-35-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3288-24-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3288-30-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3288-31-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4024-12-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-5-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-17-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-16-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-15-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-14-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-13-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-11-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-10-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-8-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-7-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-40-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4024-44-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4024-43-0x0000000010000000-0x0000000010019000-memory.dmp
memory/4024-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4024-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/4536-18-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4536-38-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4536-22-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4536-25-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4536-27-0x0000000000400000-0x0000000000478000-memory.dmp