Analysis
- max time kernel
150s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
13/02/2024, 02:07
General
- Target 2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe
- Size 990KB
- Sample240213-ckgs8agh8v
- SHA256 2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847
Malware Config
Extracted
-
remcos
-
DESK
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198.27.121.194:2024
-
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
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
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keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-EQJXDT
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
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screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos
Remcos is a closed-source remote control and surveillance software.
- Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 25 IoCs
- Detects executables built or packed with MPress PE compressor 14 IoCs
- NirSoft WebBrowserPassView 2 IoCs
Password recovery tool for various web browsers
- Nirsoft 4 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.
- Suspicious use of SetThreadContext 4 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- 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 27 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 UnmapMainImage 1 IoCs
- Suspicious use of WriteProcessMemory 30 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.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\LCIBkTUxHQE.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\LCIBkTUxHQE" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3880.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe"C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.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\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exeC:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\pbfpdcvthq"3⤵
- Suspicious behavior: EnumeratesProcesses
-
-
C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exeC:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\cyqsefyoqgfihqahd"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exeC:\Users\Admin\AppData\Local\Temp\2054ee677f5e0713c73a500d3a2a8b6769a6671ff18f7f62b24f68ca6d00f847.exe /stext "C:\Users\Admin\AppData\Local\Temp\adlhevfucyndf"3⤵
- Suspicious use of UnmapMainImage
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 824 -s 124⤵
- Program crash
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 824 -ip 8241⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
__PSScriptPolicyTest_uohirsob.z1j.ps1
pbfpdcvthq
tmp3880.tmp
memory/824-75-0x0000000000400000-0x0000000000457000-memory.dmp
memory/2032-76-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2032-73-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2032-79-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2032-90-0x0000000000400000-0x0000000000478000-memory.dmp
memory/2224-29-0x0000000005790000-0x00000000057F6000-memory.dmp
memory/2224-86-0x0000000007950000-0x000000000795A000-memory.dmp
memory/2224-72-0x00000000078E0000-0x00000000078FA000-memory.dmp
memory/2224-71-0x0000000007F20000-0x000000000859A000-memory.dmp
memory/2224-17-0x0000000002C80000-0x0000000002CB6000-memory.dmp
memory/2224-70-0x00000000077D0000-0x0000000007873000-memory.dmp
memory/2224-19-0x0000000074570000-0x0000000074D20000-memory.dmp
memory/2224-21-0x0000000005870000-0x0000000005E98000-memory.dmp
memory/2224-22-0x0000000005230000-0x0000000005240000-memory.dmp
memory/2224-69-0x0000000006B90000-0x0000000006BAE000-memory.dmp
memory/2224-23-0x0000000005230000-0x0000000005240000-memory.dmp
memory/2224-59-0x0000000071C50000-0x0000000071C9C000-memory.dmp
memory/2224-102-0x0000000074570000-0x0000000074D20000-memory.dmp
memory/2224-99-0x0000000007C00000-0x0000000007C08000-memory.dmp
memory/2224-28-0x00000000056E0000-0x0000000005702000-memory.dmp
memory/2224-58-0x0000000007590000-0x00000000075C2000-memory.dmp
memory/2224-35-0x0000000005EA0000-0x0000000005F06000-memory.dmp
memory/2224-57-0x0000000005230000-0x0000000005240000-memory.dmp
memory/2224-91-0x0000000007B60000-0x0000000007BF6000-memory.dmp
memory/2224-37-0x0000000005F90000-0x00000000062E4000-memory.dmp
memory/2224-98-0x0000000007C20000-0x0000000007C3A000-memory.dmp
memory/2224-97-0x0000000007B20000-0x0000000007B34000-memory.dmp
memory/2224-96-0x0000000007B10000-0x0000000007B1E000-memory.dmp
memory/2224-45-0x00000000065E0000-0x00000000065FE000-memory.dmp
memory/2224-46-0x0000000006B40000-0x0000000006B8C000-memory.dmp
memory/2224-92-0x0000000007AE0000-0x0000000007AF1000-memory.dmp
memory/2256-2-0x0000000005350000-0x00000000058F4000-memory.dmp
memory/2256-9-0x0000000007B70000-0x0000000007B7E000-memory.dmp
memory/2256-36-0x0000000074570000-0x0000000074D20000-memory.dmp
memory/2256-1-0x0000000000210000-0x000000000030E000-memory.dmp
memory/2256-6-0x0000000007810000-0x00000000078AC000-memory.dmp
memory/2256-10-0x0000000007CD0000-0x0000000007D96000-memory.dmp
memory/2256-3-0x0000000004CD0000-0x0000000004D62000-memory.dmp
memory/2256-11-0x0000000074570000-0x0000000074D20000-memory.dmp
memory/2256-5-0x0000000004E90000-0x0000000004E9A000-memory.dmp
memory/2256-7-0x0000000007B40000-0x0000000007B54000-memory.dmp
memory/2256-0-0x0000000074570000-0x0000000074D20000-memory.dmp
memory/2256-8-0x0000000007B60000-0x0000000007B6A000-memory.dmp
memory/2256-4-0x0000000004F20000-0x0000000004F30000-memory.dmp
memory/2256-12-0x0000000004F20000-0x0000000004F30000-memory.dmp
memory/4504-87-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4504-77-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4504-81-0x0000000000400000-0x0000000000424000-memory.dmp
memory/4504-88-0x0000000000400000-0x0000000000424000-memory.dmp
memory/5020-20-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-56-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-55-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-54-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-52-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-51-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-50-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-49-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-48-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-47-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-94-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-95-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-44-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-43-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-42-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-27-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-26-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-24-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-103-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-108-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-109-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-110-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-111-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-112-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-113-0x0000000010000000-0x0000000010019000-memory.dmp
memory/5020-114-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-115-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-116-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-117-0x0000000000400000-0x0000000000482000-memory.dmp
memory/5020-118-0x0000000000400000-0x0000000000482000-memory.dmp