Analysis
- max time kernel
148s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
- submitted
03/05/2024, 11:12
General
- Target proof of payment.exe
- Size 906KB
- Sample240503-navg4sdb3z
- SHA256 05a341a2577c728e8a994775b17b8c5562539146d78a5de948e3534e1ae1c629
Malware Config
Extracted
-
remcos
-
RemoteHost
-
37.120.235.122:2269
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audio_folder
MicRecords
-
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
-
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-F9KCYW
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screenshot_crypt
false
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screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
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take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 1 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 1 IoCs
Password recovery tool for various web browsers
- Nirsoft 3 IoCs
- Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 12 IoCs
- Suspicious behavior: MapViewOfSection 4 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NvbYSEq.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NvbYSEq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp688D.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe" /stext "C:\Users\Admin\AppData\Local\Temp\awyhkdcfxavk"3⤵
- Suspicious behavior: EnumeratesProcesses
-
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C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe" /stext "C:\Users\Admin\AppData\Local\Temp\kqmalvmgtinxiep"3⤵
-
-
C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe" /stext "C:\Users\Admin\AppData\Local\Temp\kqmalvmgtinxiep"3⤵
- Accesses Microsoft Outlook accounts
-
-
C:\Users\Admin\AppData\Local\Temp\proof of payment.exe"C:\Users\Admin\AppData\Local\Temp\proof of payment.exe" /stext "C:\Users\Admin\AppData\Local\Temp\nsrsmoxahqfcskdnsz"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
logs.dat
__PSScriptPolicyTest_pe2zp5hu.u1m.ps1
awyhkdcfxavk
tmp688D.tmp
memory/1044-41-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-110-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-74-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-70-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-69-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-76-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-79-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-140-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-139-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-132-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-131-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-82-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-124-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-123-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-99-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1044-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-83-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-36-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-103-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1044-102-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1044-35-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-107-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-106-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1044-104-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1672-88-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1672-90-0x0000000000400000-0x0000000000462000-memory.dmp
memory/1672-87-0x0000000000400000-0x0000000000462000-memory.dmp
memory/2676-4-0x0000000004B50000-0x0000000004B5A000-memory.dmp
memory/2676-1-0x0000000000200000-0x00000000002E8000-memory.dmp
memory/2676-2-0x0000000005120000-0x00000000056C4000-memory.dmp
memory/2676-0-0x0000000074AAE000-0x0000000074AAF000-memory.dmp
memory/2676-3-0x0000000004B70000-0x0000000004C02000-memory.dmp
memory/2676-5-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/2676-44-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/2676-10-0x0000000005ED0000-0x0000000005F6C000-memory.dmp
memory/2676-9-0x0000000005F90000-0x0000000006050000-memory.dmp
memory/2676-8-0x0000000004D80000-0x0000000004D96000-memory.dmp
memory/2676-7-0x0000000004D70000-0x0000000004D7E000-memory.dmp
memory/2676-6-0x0000000004CB0000-0x0000000004CC8000-memory.dmp
memory/3492-63-0x00000000079B0000-0x0000000007A46000-memory.dmp
memory/3492-45-0x00000000063F0000-0x000000000640E000-memory.dmp
memory/3492-68-0x0000000007A50000-0x0000000007A58000-memory.dmp
memory/3492-67-0x0000000007A70000-0x0000000007A8A000-memory.dmp
memory/3492-66-0x0000000007970000-0x0000000007984000-memory.dmp
memory/3492-65-0x0000000007960000-0x000000000796E000-memory.dmp
memory/3492-15-0x0000000004E50000-0x0000000004E86000-memory.dmp
memory/3492-16-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/3492-18-0x0000000005660000-0x0000000005C88000-memory.dmp
memory/3492-19-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/3492-64-0x0000000007930000-0x0000000007941000-memory.dmp
memory/3492-20-0x0000000005450000-0x0000000005472000-memory.dmp
memory/3492-21-0x00000000055F0000-0x0000000005656000-memory.dmp
memory/3492-62-0x00000000077A0000-0x00000000077AA000-memory.dmp
memory/3492-61-0x0000000007730000-0x000000000774A000-memory.dmp
memory/3492-60-0x0000000007D80000-0x00000000083FA000-memory.dmp
memory/3492-59-0x00000000075B0000-0x0000000007653000-memory.dmp
memory/3492-58-0x0000000006950000-0x000000000696E000-memory.dmp
memory/3492-47-0x0000000007370000-0x00000000073A2000-memory.dmp
memory/3492-48-0x0000000075330000-0x000000007537C000-memory.dmp
memory/3492-23-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/3492-46-0x0000000006410000-0x000000000645C000-memory.dmp
memory/3492-73-0x0000000074AA0000-0x0000000075250000-memory.dmp
memory/3492-24-0x0000000005E00000-0x0000000006154000-memory.dmp
memory/3492-22-0x0000000005C90000-0x0000000005CF6000-memory.dmp
memory/3768-89-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3768-86-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3768-85-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5040-93-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5040-96-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5040-91-0x0000000000400000-0x0000000000424000-memory.dmp