Analysis
- max time kernel
149s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system - submitted
28/05/2024, 15:13
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Inventory-List.exe
Resource
win7-20240221-en
11 signatures
150 seconds
General
- Target Inventory-List.exe
- Size 957KB
- Sample240528-slqeraaa2w
- SHA256 d25edbacc13d37548e17b535ffe3d88dc1f9419f2c541c9a2dc1b8215cdfb096
- MD5 b1e0e28098339c9f3445710c612265bf
- SHA1 7a2dd37ecd986bfc3ff118615e860467429e2ae7
- SHA512 851e8d0a9f25ad30dd005560faf66f4e452f491c8e0266af45a1f7f319ca50584a464638cffd3976cddce8e98b684b964521100f1d62b3427498873c8bedfe8d
- SSDEEP 12288:lbbMIjaTKYRy42aan6oMMZ0ziRyvMwQrIR/olCxsK8y6l409YrkIOLpvS92BXW7c:lbwYaTtRy4TVhFucgPpFvh2D7TAy8
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
-
remcos
Botnet
-
RemoteHost
C2
-
45.141.215.89:2404
Attributes
-
audio_folder
MicRecords
-
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-UCTP97
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
-
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Inventory-List.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths Inventory-List.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Inventory-List.exe = "0" Inventory-List.exe - 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.
pid Process 540 powershell.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-711569230-3659488422-571408806-1000\Control Panel\International\Geo\Nation Inventory-List.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths Inventory-List.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions Inventory-List.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\Inventory-List.exe = "0" Inventory-List.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA Inventory-List.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Inventory-List.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 404 set thread context of 2648 404 Inventory-List.exe 93 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 540 powershell.exe 540 powershell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 540 powershell.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2648 wmplayer.exe - Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 404 wrote to memory of 540 404 Inventory-List.exe 92 PID 404 wrote to memory of 540 404 Inventory-List.exe 92 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 2648 404 Inventory-List.exe 93 PID 404 wrote to memory of 4952 404 Inventory-List.exe 94 PID 404 wrote to memory of 4952 404 Inventory-List.exe 94 PID 404 wrote to memory of 4952 404 Inventory-List.exe 94 - System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" Inventory-List.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\Inventory-List.exe"C:\Users\Admin\AppData\Local\Temp\Inventory-List.exe"1⤵
- UAC bypass
- Windows security bypass
- Checks computer location settings
- Windows security modification
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:404 -
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\Inventory-List.exe" -Force2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:540
-
-
C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe"2⤵
- Suspicious use of SetWindowsHookEx
PID:2648
-
-
C:\Program Files (x86)\Windows Media Player\wmplayer.exe"C:\Program Files (x86)\Windows Media Player\wmplayer.exe"2⤵PID:4952
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\ProgramData\remcos\logs.dat
- Size 144B
- SHA256 3bb9e54234c76492630de471c5a0606189a7f73839649c7c40e495319ffb3205
- MD5 4e89fe16d468a9d4010654667d373071
- SHA1 21c21516656342b4c692c3e8b5716ffacbbd0d74
- SHA512 3c51d34275389d38d834009b9b9d458052d52491d697f74f04090e18b3fc1b54995e7cf1dabcaa78c47150c7c11cba0a9dca4dd896d6f4dade557f6406001776
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qoojzwzs.bcu.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512