Analysis
- max time kernel
157s - max time network
160s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
08/02/2024, 07:34
General
- Target PO-22385.exe
- Size 1.0MB
- Sample240208-jd4gzaefem
- SHA256 27721c56187587669e9037d4c7379dade8d197db2be2c85bb56176f4e5834e63
Malware Config
Extracted
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remcos
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DESK
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198.27.121.194:2024
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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
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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
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keylog_folder
remcos
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mouse_option
false
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mutex
Rmc-EQJXDT
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screenshot_crypt
false
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screenshot_flag
false
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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
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take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Nirsoft 7 IoCs
- 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 29 IoCs
- Suspicious behavior: MapViewOfSection 5 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 36 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exe"C:\Users\Admin\AppData\Local\Temp\PO-22385.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\XcQOOWOfleLFvN.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XcQOOWOfleLFvN" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1D52.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exe"C:\Users\Admin\AppData\Local\Temp\PO-22385.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exeC:\Users\Admin\AppData\Local\Temp\PO-22385.exe /stext "C:\Users\Admin\AppData\Local\Temp\oikoxdrtatue"3⤵
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exeC:\Users\Admin\AppData\Local\Temp\PO-22385.exe /stext "C:\Users\Admin\AppData\Local\Temp\oikoxdrtatue"3⤵
- Suspicious behavior: EnumeratesProcesses
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exeC:\Users\Admin\AppData\Local\Temp\PO-22385.exe /stext "C:\Users\Admin\AppData\Local\Temp\rkphyvcuwbmjmoq"3⤵
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exeC:\Users\Admin\AppData\Local\Temp\PO-22385.exe /stext "C:\Users\Admin\AppData\Local\Temp\rkphyvcuwbmjmoq"3⤵
- Accesses Microsoft Outlook accounts
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C:\Users\Admin\AppData\Local\Temp\PO-22385.exeC:\Users\Admin\AppData\Local\Temp\PO-22385.exe /stext "C:\Users\Admin\AppData\Local\Temp\bevryonokjeoxceecny"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_tkmieukv.gtc.ps1
oikoxdrtatue
tmp1D52.tmp
memory/408-63-0x0000000000400000-0x0000000000424000-memory.dmp
memory/408-70-0x0000000000400000-0x0000000000424000-memory.dmp
memory/408-75-0x0000000000400000-0x0000000000424000-memory.dmp
memory/408-77-0x0000000000400000-0x0000000000424000-memory.dmp
memory/1064-81-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1064-45-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-86-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1064-53-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-87-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-89-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1064-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-111-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-119-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-21-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-66-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-120-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-30-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-31-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-33-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-121-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-122-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-85-0x0000000010000000-0x0000000010019000-memory.dmp
memory/1064-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1064-46-0x0000000000400000-0x0000000000482000-memory.dmp
memory/2464-62-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2464-67-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2464-69-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2464-76-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2464-58-0x0000000000400000-0x0000000000457000-memory.dmp
memory/3628-55-0x0000000006190000-0x00000000061DC000-memory.dmp
memory/3628-109-0x0000000007640000-0x00000000076D6000-memory.dmp
memory/3628-118-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/3628-54-0x0000000004E20000-0x0000000004E3E000-memory.dmp
memory/3628-115-0x00000000076E0000-0x00000000076E8000-memory.dmp
memory/3628-40-0x0000000005A90000-0x0000000005DE4000-memory.dmp
memory/3628-32-0x0000000005960000-0x00000000059C6000-memory.dmp
memory/3628-29-0x00000000058F0000-0x0000000005956000-memory.dmp
memory/3628-28-0x00000000050C0000-0x00000000050E2000-memory.dmp
memory/3628-114-0x0000000007700000-0x000000000771A000-memory.dmp
memory/3628-24-0x00000000052C0000-0x00000000058E8000-memory.dmp
memory/3628-20-0x0000000004AE0000-0x0000000004B16000-memory.dmp
memory/3628-18-0x0000000004C80000-0x0000000004C90000-memory.dmp
memory/3628-17-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/3628-113-0x0000000007600000-0x0000000007614000-memory.dmp
memory/3628-112-0x00000000075F0000-0x00000000075FE000-memory.dmp
memory/3628-110-0x00000000075C0000-0x00000000075D1000-memory.dmp
memory/3628-108-0x0000000004C80000-0x0000000004C90000-memory.dmp
memory/3628-107-0x0000000007430000-0x000000000743A000-memory.dmp
memory/3628-106-0x00000000073C0000-0x00000000073DA000-memory.dmp
memory/3628-105-0x0000000007A20000-0x000000000809A000-memory.dmp
memory/3628-104-0x00000000072F0000-0x0000000007393000-memory.dmp
memory/3628-88-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/3628-103-0x0000000006640000-0x000000000665E000-memory.dmp
memory/3628-90-0x0000000004C80000-0x0000000004C90000-memory.dmp
memory/3628-91-0x0000000004C80000-0x0000000004C90000-memory.dmp
memory/3628-92-0x0000000006660000-0x0000000006692000-memory.dmp
memory/3628-93-0x00000000703E0000-0x000000007042C000-memory.dmp
memory/3772-79-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3772-56-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3772-61-0x0000000000400000-0x0000000000478000-memory.dmp
memory/3772-65-0x0000000000400000-0x0000000000478000-memory.dmp
memory/4112-10-0x0000000006B00000-0x0000000006BC0000-memory.dmp
memory/4112-26-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/4112-0-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/4112-6-0x0000000005A20000-0x0000000005A34000-memory.dmp
memory/4112-5-0x0000000005450000-0x000000000545A000-memory.dmp
memory/4112-12-0x0000000005720000-0x0000000005730000-memory.dmp
memory/4112-9-0x0000000006AA0000-0x0000000006AAE000-memory.dmp
memory/4112-11-0x0000000009220000-0x00000000092BC000-memory.dmp
memory/4112-8-0x0000000005A50000-0x0000000005A5A000-memory.dmp
memory/4112-7-0x0000000074A90000-0x0000000075240000-memory.dmp
memory/4112-4-0x0000000005720000-0x0000000005730000-memory.dmp
memory/4112-3-0x00000000054B0000-0x0000000005542000-memory.dmp
memory/4112-2-0x0000000005A60000-0x0000000006004000-memory.dmp
memory/4112-1-0x0000000000950000-0x0000000000A5A000-memory.dmp