Analysis
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max time kernel
178s -
max time network
185s -
platform
windows10-2004_x64 -
resource
win10v2004-20220414-en -
submitted
26-06-2022 05:15
Static task
static1
Behavioral task
behavioral1
Sample
185rms.exe
Resource
win7-20220414-en
General
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Target
185rms.exe
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Size
2.8MB
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MD5
6cfceeb676d49151e8c2fec9c4209789
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SHA1
42c87894f183c3612e1662f531003bbe7478f875
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SHA256
a2fad2958e6dd09d0d980d4e5d158c2a2eb18963d47fc95779c22bc2d203cb8e
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SHA512
a371d0b6f4bed336e01b6025cc584f27f939f0fea9f92e36aa63295164e31eebccf24cdae24e04fcbdb0545169454d3b9944630c2cfde49dd8681496005cac89
Malware Config
Extracted
remcos
RH1
185.29.9.125:2404
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audio_folder
MicRecords
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audio_path
%AppData%
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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
itunes.exe
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copy_folder
RMS
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delete_file
true
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hide_file
false
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hide_keylog_file
false
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install_flag
true
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install_path
%AppData%
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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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keylog_path
%AppData%
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mouse_option
false
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mutex
Jd1985-XODZWD
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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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startup_value
Rms
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take_screenshot_option
false
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take_screenshot_time
5
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take_screenshot_title
notepad;solitaire;
Signatures
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Processes:
reg.exereg.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" reg.exe -
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 2 IoCs
Processes:
itunes.exe185rms.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ itunes.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ 185rms.exe -
Executes dropped EXE 1 IoCs
Processes:
itunes.exepid process 4964 itunes.exe -
Checks BIOS information in registry 2 TTPs 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
185rms.exeitunes.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion 185rms.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion 185rms.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion itunes.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion itunes.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
185rms.exeWScript.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation 185rms.exe Key value queried \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation WScript.exe -
Processes:
resource yara_rule behavioral2/memory/3936-130-0x0000000000050000-0x000000000076F000-memory.dmp themida behavioral2/memory/3936-131-0x0000000000050000-0x000000000076F000-memory.dmp themida behavioral2/memory/3936-132-0x0000000000050000-0x000000000076F000-memory.dmp themida behavioral2/memory/3936-134-0x0000000000050000-0x000000000076F000-memory.dmp themida behavioral2/memory/3936-135-0x0000000000050000-0x000000000076F000-memory.dmp themida behavioral2/memory/3936-140-0x0000000000050000-0x000000000076F000-memory.dmp themida C:\Users\Admin\AppData\Roaming\RMS\itunes.exe themida C:\Users\Admin\AppData\Roaming\RMS\itunes.exe themida behavioral2/memory/4964-146-0x0000000000A50000-0x000000000116F000-memory.dmp themida behavioral2/memory/4964-147-0x0000000000A50000-0x000000000116F000-memory.dmp themida behavioral2/memory/4964-148-0x0000000000A50000-0x000000000116F000-memory.dmp themida behavioral2/memory/4964-150-0x0000000000A50000-0x000000000116F000-memory.dmp themida behavioral2/memory/4964-151-0x0000000000A50000-0x000000000116F000-memory.dmp themida behavioral2/memory/4964-156-0x0000000000A50000-0x000000000116F000-memory.dmp themida -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
185rms.exeitunes.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 185rms.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rms = "\"C:\\Users\\Admin\\AppData\\Roaming\\RMS\\itunes.exe\"" 185rms.exe Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Software\Microsoft\Windows\CurrentVersion\Run\ itunes.exe Set value (str) \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rms = "\"C:\\Users\\Admin\\AppData\\Roaming\\RMS\\itunes.exe\"" itunes.exe -
Processes:
185rms.exeitunes.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 185rms.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA itunes.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
Processes:
185rms.exeitunes.exepid process 3936 185rms.exe 4964 itunes.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
Processes:
185rms.exedescription ioc process Key created \REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000_Classes\Local Settings 185rms.exe -
Modifies registry key 1 TTPs 2 IoCs
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Suspicious use of WriteProcessMemory 24 IoCs
Processes:
185rms.execmd.exeWScript.execmd.exeitunes.execmd.exedescription pid process target process PID 3936 wrote to memory of 4184 3936 185rms.exe cmd.exe PID 3936 wrote to memory of 4184 3936 185rms.exe cmd.exe PID 3936 wrote to memory of 4184 3936 185rms.exe cmd.exe PID 4184 wrote to memory of 4424 4184 cmd.exe reg.exe PID 4184 wrote to memory of 4424 4184 cmd.exe reg.exe PID 4184 wrote to memory of 4424 4184 cmd.exe reg.exe PID 3936 wrote to memory of 4828 3936 185rms.exe WScript.exe PID 3936 wrote to memory of 4828 3936 185rms.exe WScript.exe PID 3936 wrote to memory of 4828 3936 185rms.exe WScript.exe PID 4828 wrote to memory of 4180 4828 WScript.exe cmd.exe PID 4828 wrote to memory of 4180 4828 WScript.exe cmd.exe PID 4828 wrote to memory of 4180 4828 WScript.exe cmd.exe PID 4180 wrote to memory of 4964 4180 cmd.exe itunes.exe PID 4180 wrote to memory of 4964 4180 cmd.exe itunes.exe PID 4180 wrote to memory of 4964 4180 cmd.exe itunes.exe PID 4964 wrote to memory of 456 4964 itunes.exe cmd.exe PID 4964 wrote to memory of 456 4964 itunes.exe cmd.exe PID 4964 wrote to memory of 456 4964 itunes.exe cmd.exe PID 4964 wrote to memory of 628 4964 itunes.exe svchost.exe PID 4964 wrote to memory of 628 4964 itunes.exe svchost.exe PID 4964 wrote to memory of 628 4964 itunes.exe svchost.exe PID 456 wrote to memory of 5016 456 cmd.exe reg.exe PID 456 wrote to memory of 5016 456 cmd.exe reg.exe PID 456 wrote to memory of 5016 456 cmd.exe reg.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\185rms.exe"C:\Users\Admin\AppData\Local\Temp\185rms.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks computer location settings
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeC:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f3⤵
- UAC bypass
- Modifies registry key
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\install.vbs"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c "C:\Users\Admin\AppData\Roaming\RMS\itunes.exe"3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\RMS\itunes.exeC:\Users\Admin\AppData\Roaming\RMS\itunes.exe1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Executes dropped EXE
- Checks BIOS information in registry
- Adds Run key to start application
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\svchost.exeC:\Windows\SysWOW64\svchost.exe2⤵
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C:\Windows\SysWOW64\cmd.exe/k %windir%\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\reg.exeC:\Windows\System32\reg.exe ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f1⤵
- UAC bypass
- Modifies registry key
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\install.vbsFilesize
536B
MD59f75de802bf74aeb51ff665f8d009420
SHA116bf08edffd90ff78e409e8461cc9b6b12ceb93b
SHA256753ec32a971c16ea202a0f8ebb7bce551b5ff8d8c546f26bdf4a3069a5c50c48
SHA512bf1df2ce961e0ddd2a741228cc9dafed88ffc447145e553a49f101e475cd99910c7d114c8cdd18d6ce05eb9684d28666d44ca2800d9f5d64e553372663f0242f
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C:\Users\Admin\AppData\Roaming\RMS\itunes.exeFilesize
2.8MB
MD56cfceeb676d49151e8c2fec9c4209789
SHA142c87894f183c3612e1662f531003bbe7478f875
SHA256a2fad2958e6dd09d0d980d4e5d158c2a2eb18963d47fc95779c22bc2d203cb8e
SHA512a371d0b6f4bed336e01b6025cc584f27f939f0fea9f92e36aa63295164e31eebccf24cdae24e04fcbdb0545169454d3b9944630c2cfde49dd8681496005cac89
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C:\Users\Admin\AppData\Roaming\RMS\itunes.exeFilesize
2.8MB
MD56cfceeb676d49151e8c2fec9c4209789
SHA142c87894f183c3612e1662f531003bbe7478f875
SHA256a2fad2958e6dd09d0d980d4e5d158c2a2eb18963d47fc95779c22bc2d203cb8e
SHA512a371d0b6f4bed336e01b6025cc584f27f939f0fea9f92e36aa63295164e31eebccf24cdae24e04fcbdb0545169454d3b9944630c2cfde49dd8681496005cac89
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memory/456-153-0x0000000000000000-mapping.dmp
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memory/628-154-0x0000000000000000-mapping.dmp
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memory/3936-133-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB
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memory/3936-130-0x0000000000050000-0x000000000076F000-memory.dmpFilesize
7.1MB
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memory/3936-135-0x0000000000050000-0x000000000076F000-memory.dmpFilesize
7.1MB
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memory/3936-134-0x0000000000050000-0x000000000076F000-memory.dmpFilesize
7.1MB
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memory/3936-132-0x0000000000050000-0x000000000076F000-memory.dmpFilesize
7.1MB
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memory/3936-140-0x0000000000050000-0x000000000076F000-memory.dmpFilesize
7.1MB
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memory/3936-141-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB
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memory/3936-131-0x0000000000050000-0x000000000076F000-memory.dmpFilesize
7.1MB
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memory/4180-142-0x0000000000000000-mapping.dmp
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memory/4184-136-0x0000000000000000-mapping.dmp
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memory/4424-137-0x0000000000000000-mapping.dmp
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memory/4828-138-0x0000000000000000-mapping.dmp
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memory/4964-143-0x0000000000000000-mapping.dmp
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memory/4964-146-0x0000000000A50000-0x000000000116F000-memory.dmpFilesize
7.1MB
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memory/4964-147-0x0000000000A50000-0x000000000116F000-memory.dmpFilesize
7.1MB
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memory/4964-148-0x0000000000A50000-0x000000000116F000-memory.dmpFilesize
7.1MB
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memory/4964-150-0x0000000000A50000-0x000000000116F000-memory.dmpFilesize
7.1MB
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memory/4964-152-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB
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memory/4964-151-0x0000000000A50000-0x000000000116F000-memory.dmpFilesize
7.1MB
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memory/4964-157-0x0000000077D80000-0x0000000077F23000-memory.dmpFilesize
1.6MB
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memory/4964-156-0x0000000000A50000-0x000000000116F000-memory.dmpFilesize
7.1MB
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memory/5016-155-0x0000000000000000-mapping.dmp