Analysis
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max time kernel
151s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
05-10-2022 11:01
Static task
static1
Behavioral task
behavioral1
Sample
ed7fa6ec8aa0602b18ac40bf6abff7e6.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
ed7fa6ec8aa0602b18ac40bf6abff7e6.exe
Resource
win10v2004-20220812-en
General
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Target
ed7fa6ec8aa0602b18ac40bf6abff7e6.exe
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Size
1.8MB
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MD5
ed7fa6ec8aa0602b18ac40bf6abff7e6
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SHA1
21f14e8533a1143001c0bc1a842cb4f9f4c69a8a
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SHA256
341e2d5159578433b9509ab15c1b2acd52162a51531d8c94689286a91eebcdc4
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SHA512
3388db86341f13ed30d40942df6b1844c6ebdbe7a360749edec9b23b87ca106ae90082c08648308fc9a9f78a4ffdd0c92855b090aeca52ddc00a903834d856e7
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SSDEEP
12288:Lnjo5JZCGepoAgPBEudDgeOYnWZQzjFeM6DJOjB9sTTHyOx+mRfGrwmMeOS34MIy:6ZL0QpfnYQb6VOUROrwE
Malware Config
Extracted
remcos
RemoteHost
mam.mastercoa.co:37824
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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-3FCFQU
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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
Remcos
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
ed7fa6ec8aa0602b18ac40bf6abff7e6.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation ed7fa6ec8aa0602b18ac40bf6abff7e6.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
ed7fa6ec8aa0602b18ac40bf6abff7e6.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Kbvypcxq = "\"C:\\Users\\Admin\\AppData\\Roaming\\Eygho\\Kbvypcxq.exe\"" ed7fa6ec8aa0602b18ac40bf6abff7e6.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
ed7fa6ec8aa0602b18ac40bf6abff7e6.exedescription pid process target process PID 964 set thread context of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 10 IoCs
Processes:
powershell.exeed7fa6ec8aa0602b18ac40bf6abff7e6.exepid process 1604 powershell.exe 1604 powershell.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
powershell.exeed7fa6ec8aa0602b18ac40bf6abff7e6.exedescription pid process Token: SeDebugPrivilege 1604 powershell.exe Token: SeDebugPrivilege 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
InstallUtil.exepid process 4368 InstallUtil.exe -
Suspicious use of WriteProcessMemory 27 IoCs
Processes:
ed7fa6ec8aa0602b18ac40bf6abff7e6.exedescription pid process target process PID 964 wrote to memory of 1604 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe powershell.exe PID 964 wrote to memory of 1604 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe powershell.exe PID 964 wrote to memory of 1604 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe powershell.exe PID 964 wrote to memory of 1836 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 1836 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 1836 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 1464 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 1464 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 1464 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4876 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4876 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4876 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 2508 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 2508 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 2508 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe PID 964 wrote to memory of 4368 964 ed7fa6ec8aa0602b18ac40bf6abff7e6.exe InstallUtil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ed7fa6ec8aa0602b18ac40bf6abff7e6.exe"C:\Users\Admin\AppData\Local\Temp\ed7fa6ec8aa0602b18ac40bf6abff7e6.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- 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" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQA1AA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe2⤵
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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memory/964-133-0x0000000005DA0000-0x0000000005DC2000-memory.dmpFilesize
136KB
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memory/964-132-0x0000000000800000-0x00000000009C6000-memory.dmpFilesize
1.8MB
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memory/1464-143-0x0000000000000000-mapping.dmp
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memory/1604-134-0x0000000000000000-mapping.dmp
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memory/1604-135-0x0000000002D70000-0x0000000002DA6000-memory.dmpFilesize
216KB
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memory/1604-136-0x0000000005590000-0x0000000005BB8000-memory.dmpFilesize
6.2MB
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memory/1604-137-0x00000000053F0000-0x0000000005456000-memory.dmpFilesize
408KB
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memory/1604-138-0x0000000005510000-0x0000000005576000-memory.dmpFilesize
408KB
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memory/1604-139-0x0000000006320000-0x000000000633E000-memory.dmpFilesize
120KB
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memory/1604-140-0x0000000007950000-0x0000000007FCA000-memory.dmpFilesize
6.5MB
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memory/1604-141-0x0000000006820000-0x000000000683A000-memory.dmpFilesize
104KB
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memory/1836-142-0x0000000000000000-mapping.dmp
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memory/2508-145-0x0000000000000000-mapping.dmp
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memory/4368-146-0x0000000000000000-mapping.dmp
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memory/4368-147-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4368-148-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4368-149-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4368-150-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4368-151-0x0000000000400000-0x000000000047F000-memory.dmpFilesize
508KB
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memory/4876-144-0x0000000000000000-mapping.dmp