Analysis
- max time kernel
149s - max time network
153s - platform
windows11-21h2_x64 - resource
win11-20250610-en - resource tags
arch:x64arch:x86image:win11-20250610-enlocale:en-usos:windows11-21h2-x64system - submitted
07/07/2025, 15:03
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe
Resource
win10v2004-20250619-en
12 signatures
150 seconds
General
- Target 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe
- Size 1.0MB
- Sample250707-se718atmt3
- SHA256 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002
- MD5 e4e528d413e0fcaa377aa39a2483e54a
- SHA1 8358131a47999c3dfef085867bf84accb02c0888
- SHA512 ea999f01f9fa0c5534ba2bca6729f733ed048d11cf13e671611203a5e9e4ed00d848e8978c77a5bac4d71089e192f92183c3c86a854d2c33925c9fcf98baa3a6
- SSDEEP 24576:vFkJsOHoAaMosQZrUwcukreIm2V5Y4K8iPH8DQEcH2:maiILYDreIRGF8iPcDQHH
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
remcos
Botnet
-
XM
C2
-
196.251.71.39:6374
Attributes
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
0
-
connect_interval
1
-
copy_file
remcos.exe
-
copy_folder
Remcos
-
delete_file
false
-
hide_file
false
-
hide_keylog_file
false
-
install_flag
false
-
keylog_crypt
false
-
keylog_file
logs.dat
-
keylog_flag
false
-
keylog_folder
remcos
-
mouse_option
false
-
mutex
Rmc-G3ELBG
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Remcos family
- Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2516 powershell.exe 3032 powershell.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4304 set thread context of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe - Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2120 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 2516 powershell.exe 3032 powershell.exe 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 2516 powershell.exe 3032 powershell.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe Token: SeDebugPrivilege 3032 powershell.exe Token: SeDebugPrivilege 2516 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4372 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe - Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 4304 wrote to memory of 3032 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 78 PID 4304 wrote to memory of 3032 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 78 PID 4304 wrote to memory of 3032 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 78 PID 4304 wrote to memory of 2516 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 80 PID 4304 wrote to memory of 2516 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 80 PID 4304 wrote to memory of 2516 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 80 PID 4304 wrote to memory of 2120 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 82 PID 4304 wrote to memory of 2120 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 82 PID 4304 wrote to memory of 2120 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 82 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84 PID 4304 wrote to memory of 4372 4304 8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4304 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3032
-
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EKkAbRzEd.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2516
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EKkAbRzEd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF7DD.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2120
-
-
C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"C:\Users\Admin\AppData\Local\Temp\8a3c4a4dedc8ccc8dcd27b9bb2b0f2a3982b938cf9185c0c4c5b8a46a8321002.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:4372
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\ProgramData\remcos\logs.dat
- Size 154B
- SHA256 9ea811f801bd34a97224a6854fdb925b755047e82a7799784ad212cbc31aca0c
- MD5 d3254975f0a113dffdd75ccdb9c699d7
- SHA1 39330673cec60ccc8c10ffa142b07377605e6a83
- SHA512 52f9ea40fa4e4b152ce8e2373e20822a78e726b6aafa6dff5d44a954de148d581c1ee0a09872fd144eea455a2fe03a97b381c0766886457b7d8e92b5e3855f86
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
- Size 2KB
- SHA256 9600b3fdf0565ccb49e21656aa4b24d7c18f776bfd04d9ee984b134707550f02
- MD5 d0c46cad6c0778401e21910bd6b56b70
- SHA1 7be418951ea96326aca445b8dfe449b2bfa0dca6
- SHA512 057531b468f7fbbb2175a696a8aab274dec0d17d9f71df309edcff35e064f3378050066a3df47ccd03048fac461594ec75e3d4fe64f9dd79949d129f51e02949
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
- Size 18KB
- SHA256 2158db182111f1efbf0dac8f363a5712dc394f655feaec996d6ac53a89153d16
- MD5 98a39f75f5d086e122579a4477634d68
- SHA1 34c6037622d8cc8c386ee2ce7cadd5b3e28a0c0d
- SHA512 768f26e55c695880e19f5d7b245d407d8b2081b21c4fd2bf41adfac7e7e79e8b7d03cab8e5e8c749fb26fab7eddee1c296fdbe8c1777788933ec29f03f855106
- SSDEEP 384:iL3HhY16S1c3KnnFRHEMEn+HjlrNzjs2xtgDNSU59F9Eou0iFZX:sW6Sq6nFRPEefzj7xtgRSWF9Eou0E
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rdxroarv.mfw.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\tmpF7DD.tmp
- Size 1KB
- SHA256 a30e4489ed3995e2f77ba060ab34fdbebf1990ee4a7f5e6686f26e9cd7f7cba8
- MD5 6ecdc2271d935a83031694c24c9f84be
- SHA1 693fa9d99d5b0c880969d161ecc24593efc74e4c
- SHA512 de6684cdef3e037dddcc46ca39010c72143f105b7e7b3ee2d4f427f46a57377271dcf1f8072d1aeed3e977489279625c36b4b031dc868c259ee160dcaa0ebc25
- MD5 SHA1 SHA512