Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
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submitted
22-05-2024 01:47
General
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Target
6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f.exe
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Size
1.5MB
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MD5
a01dc98fbbd12e4e5ed0a3aa2ab17621
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SHA1
e556895217266e277aeff6bd21c8cf8f151e532a
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SHA256
6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f
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SHA512
36f777efc025eecdb06f5f86fd96a808ac91d949ababbd08ec7dd3560507fcb9aea974e253cd49650b6c35111f0f3fb7b13efc43bc925673e33055e7204ecbbc
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SSDEEP
24576:mTD/rj1i8Lf0156tsPlSd+uqp9I1ioX/T9d9YrJFoi7+FxkQBRGprqH0R:M8g0Gd+1BoPTjurEiMxzHGtqi
Malware Config
Extracted
remcos
Protected
janbours92harbu01.duckdns.org:3980
janbours92harbu01.duckdns.org:3981
janbours92harbu02.duckdns.org:3980
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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
true
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install_flag
false
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keylog_crypt
false
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keylog_file
kajsoiestc.dat
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keylog_flag
false
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keylog_path
%AppData%
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mouse_option
false
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mutex
aksoiestgb-1YOAXH
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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
- startup_value
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take_screenshot_option
false
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take_screenshot_time
5
Signatures
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Remcos
Remcos is a closed-source remote control and surveillance software.
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UAC bypass 3 TTPs 1 IoCs
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Windows security bypass 2 TTPs 2 IoCs
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Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 1 IoCs
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Detects executables packed with or use KoiVM 1 IoCs
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Windows security modification 2 TTPs 3 IoCs
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Checks whether UAC is enabled 1 TTPs 2 IoCs
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 40 IoCs
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System policy modification 1 TTPs 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f.exe"C:\Users\Admin\AppData\Local\Temp\6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f.exe"1⤵
- UAC bypass
- Windows security bypass
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\6c7572f38ec5853112211eb940751b660538d61f67ae8097c8435991768af98f.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe"2⤵
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C:\Windows\System32\svchost.exe"C:\Windows\System32\svchost.exe"2⤵
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe"2⤵
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"2⤵
- Suspicious use of SetWindowsHookEx
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C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"2⤵
Network
MITRE ATT&CK Matrix ATT&CK v13
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
3Disable or Modify Tools
3Modify Registry
4Virtualization/Sandbox Evasion
2Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_iwdnxaq3.qjv.ps1Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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memory/2392-20-0x0000000000400000-0x0000000000482000-memory.dmpFilesize
520KB
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memory/3224-17-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB
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memory/3224-5-0x0000018B7A130000-0x0000018B7A152000-memory.dmpFilesize
136KB
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memory/3224-6-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB
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memory/3224-16-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB
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memory/3224-21-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB
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memory/4212-3-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB
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memory/4212-4-0x000002710FE80000-0x000002710FF50000-memory.dmpFilesize
832KB
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memory/4212-2-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB
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memory/4212-0-0x00007FFE5AE83000-0x00007FFE5AE85000-memory.dmpFilesize
8KB
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memory/4212-1-0x000002710FD20000-0x000002710FD2A000-memory.dmpFilesize
40KB
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memory/4212-22-0x00007FFE5AE80000-0x00007FFE5B941000-memory.dmpFilesize
10.8MB