Analysis
- max time kernel
148s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
31/01/2024, 14:12
General
- Target PO-2413120.exe
- Size 989KB
- Sample240131-rhtsbsffhr
- SHA256 d5bc991d8b0e51e45a1b9b9baa71dda7f7dfd8e769e3a641d0cda1077bd01b04
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 2 IoCs
Password recovery tool for various email clients
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Nirsoft 6 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 3 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 33 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"C:\Users\Admin\AppData\Local\Temp\PO-2413120.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\YOelrcqG.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YOelrcqG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1C1E.tmp"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"C:\Users\Admin\AppData\Local\Temp\PO-2413120.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO-2413120.exeC:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\imyus"3⤵
- Accesses Microsoft Outlook accounts
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C:\Users\Admin\AppData\Local\Temp\PO-2413120.exeC:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\todetwyqu"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Users\Admin\AppData\Local\Temp\PO-2413120.exeC:\Users\Admin\AppData\Local\Temp\PO-2413120.exe /stext "C:\Users\Admin\AppData\Local\Temp\yslbrlvvkhpryhcjnsgprfegjwyhdiwye"3⤵
- Suspicious behavior: EnumeratesProcesses
-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
__PSScriptPolicyTest_25fxd2xj.mtw.ps1
tmp1C1E.tmp
yslbrlvvkhpryhcjnsgprfegjwyhdiwye
memory/508-62-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-67-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-64-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-105-0x0000000010000000-0x0000000010019000-memory.dmp
memory/508-111-0x0000000010000000-0x0000000010019000-memory.dmp
memory/508-110-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-109-0x0000000010000000-0x0000000010019000-memory.dmp
memory/508-108-0x0000000010000000-0x0000000010019000-memory.dmp
memory/508-60-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-118-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-117-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-116-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-66-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-22-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-23-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-114-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-65-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-112-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-72-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-40-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-113-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-75-0x0000000000400000-0x0000000000482000-memory.dmp
memory/508-25-0x0000000000400000-0x0000000000482000-memory.dmp
memory/1772-12-0x0000000005530000-0x0000000005540000-memory.dmp
memory/1772-5-0x00000000055C0000-0x00000000055CA000-memory.dmp
memory/1772-11-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/1772-10-0x0000000009710000-0x00000000097AC000-memory.dmp
memory/1772-9-0x00000000070E0000-0x00000000071A0000-memory.dmp
memory/1772-8-0x0000000005B80000-0x0000000005B94000-memory.dmp
memory/1772-0-0x0000000000AC0000-0x0000000000BBC000-memory.dmp
memory/1772-7-0x0000000005B70000-0x0000000005B7E000-memory.dmp
memory/1772-6-0x0000000005730000-0x000000000574C000-memory.dmp
memory/1772-34-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/1772-2-0x0000000005BA0000-0x0000000006144000-memory.dmp
memory/1772-3-0x00000000055F0000-0x0000000005682000-memory.dmp
memory/1772-1-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/1772-4-0x0000000005530000-0x0000000005540000-memory.dmp
memory/3408-101-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3408-88-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3408-99-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3408-98-0x0000000000400000-0x0000000000424000-memory.dmp
memory/3556-85-0x0000000000400000-0x0000000000457000-memory.dmp
memory/3556-94-0x0000000000400000-0x0000000000457000-memory.dmp
memory/3556-92-0x0000000000400000-0x0000000000457000-memory.dmp
memory/3556-100-0x0000000000400000-0x0000000000457000-memory.dmp
memory/3976-63-0x0000000007550000-0x00000000075F3000-memory.dmp
memory/3976-44-0x0000000006560000-0x000000000657E000-memory.dmp
memory/3976-79-0x0000000007BB0000-0x0000000007BB8000-memory.dmp
memory/3976-78-0x0000000007BD0000-0x0000000007BEA000-memory.dmp
memory/3976-46-0x000000007EED0000-0x000000007EEE0000-memory.dmp
memory/3976-83-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/3976-17-0x0000000002C70000-0x0000000002CA6000-memory.dmp
memory/3976-73-0x0000000007B10000-0x0000000007BA6000-memory.dmp
memory/3976-70-0x0000000007900000-0x000000000790A000-memory.dmp
memory/3976-76-0x0000000007AC0000-0x0000000007ACE000-memory.dmp
memory/3976-68-0x0000000007ED0000-0x000000000854A000-memory.dmp
memory/3976-48-0x00000000711D0000-0x000000007121C000-memory.dmp
memory/3976-69-0x0000000007890000-0x00000000078AA000-memory.dmp
memory/3976-74-0x0000000007A90000-0x0000000007AA1000-memory.dmp
memory/3976-77-0x0000000007AD0000-0x0000000007AE4000-memory.dmp
memory/3976-18-0x00000000749E0000-0x0000000075190000-memory.dmp
memory/3976-61-0x0000000002D00000-0x0000000002D10000-memory.dmp
memory/3976-19-0x0000000002D00000-0x0000000002D10000-memory.dmp
memory/3976-21-0x00000000056D0000-0x0000000005CF8000-memory.dmp
memory/3976-59-0x0000000006B70000-0x0000000006B8E000-memory.dmp
memory/3976-47-0x0000000006B20000-0x0000000006B52000-memory.dmp
memory/3976-45-0x00000000065A0000-0x00000000065EC000-memory.dmp
memory/3976-58-0x0000000002D00000-0x0000000002D10000-memory.dmp
memory/3976-41-0x00000000060E0000-0x0000000006434000-memory.dmp
memory/3976-28-0x0000000005660000-0x00000000056C6000-memory.dmp
memory/3976-39-0x0000000006070000-0x00000000060D6000-memory.dmp
memory/3976-26-0x00000000054C0000-0x00000000054E2000-memory.dmp
memory/5088-93-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5088-103-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5088-89-0x0000000000400000-0x0000000000478000-memory.dmp
memory/5088-84-0x0000000000400000-0x0000000000478000-memory.dmp