Analysis
- max time kernel
149s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260710-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260710-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
14/07/2026, 16:13
Static task
static1
Behavioral task
behavioral1
Sample
loader_8e7c4479c8530a2b.ps1
Resource
win10v2004-20260513-en
10 signatures
150 seconds
General
- Target loader_8e7c4479c8530a2b.ps1
- Size 301KB
- Sample260714-tpem4aay4s
- SHA256 99d0eb6047cc8c9f8cd061a6fcd18bb1fb6a5d4cfb78dd626b7f90a2d90e11b2
- MD5 d1750b22a4bbfeafbfc0811a31439500
- SHA1 9ce499ab1fb412e7934e7e720c74c2476624b0d5
- SHA512 f824afa8224cd946f4c8eccdefa279f9431def1e0eb111222d328701ea0c8cb29c02caf8f5a9397a7da4cae354f00f09c336c50cbfd6d57814f61d3b115c8014
- SSDEEP 6144:M4H4QjBpKk6GOYqntG7dgkbwhsMvvBAeU+4Vt6csRD:54GBpK1nrtozqXBe4
- TLSH T14464F0B6C67428760E9C1368105D3FF3ADFC9DCF846874A4844CA4DEB4A47E2AD6C2E5
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
Family
-
remcos
Version
-
7.2.6 Light
Botnet
-
RemoteHost
C2
-
oudwaubach.nl:443
Attributes
-
audio_folder
MicRecords
-
audio_path
ApplicationPath
-
audio_record_time
5
-
connect_delay
3
-
connect_interval
3
-
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-QYINA5
-
screenshot_crypt
false
-
screenshot_flag
false
-
screenshot_folder
Screenshots
-
screenshot_path
%AppData%
-
screenshot_time
10
-
take_screenshot_option
false
-
take_screenshot_time
5
Signatures
- Executes dropped EXE 1 IoCs
pid Process 1120 ctfmon.exe -
resource yara_rule behavioral2/files/0x001a00000001c477-15.dat upx behavioral2/memory/1120-23-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-24-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-25-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-26-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-27-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-28-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-29-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-30-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-31-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-32-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-33-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-34-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-35-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-36-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-37-0x0000000000400000-0x000000000048A000-memory.dmp upx behavioral2/memory/1120-38-0x0000000000400000-0x000000000048A000-memory.dmp upx -
pid Process 4356 PowerShell.exe - System Location Discovery: System Language Discovery 1 TTPs 1 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 ctfmon.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4356 PowerShell.exe 4356 PowerShell.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4356 PowerShell.exe - Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 1120 ctfmon.exe - Suspicious use of SendNotifyMessage 1 IoCs
pid Process 1120 ctfmon.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 4356 wrote to memory of 1120 4356 PowerShell.exe 88
Processes
-
C:\Windows\system32\WindowsPowerShell\v1.0\PowerShell.exepowershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\loader_8e7c4479c8530a2b.ps11⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4356 -
C:\Users\Admin\AppData\Local\Temp\ctfmon.exe"C:\Users\Admin\AppData\Local\Temp\ctfmon.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1120
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\ctfmon.exe
- Size 226KB
- SHA256 8e7c4479c8530a2bab847c5e2edcec8c3162c22dbb3c3cc20f12f8b028e92cb8
- MD5 21eb95378e4f82397614cf2c5a51c3b6
- SHA1 7dffd3082d2f51486043fd166ec0846560f37277
- SHA512 2d1a356a5f10f81532319b9523aa312b5d77c7b9cedf6d1aea3f5634ea8e2af362dc58ef39571faf7a3a2a86598351e11de2f258ebc85e700a356a2a6941e55e
- SSDEEP 3072:r9iRWw7aM+jTj/asbwHaZc+5TQgzQJsQwgoUVD5gpKJNkUka4SrwgcUSatS6MSH5:rMWRLzPRwtufhU154gL1CX4MOaYyRY8
- TLSH T12E341244BF7AEC1DF4080AF15525DCB6A5A8CC161A797E0B87E4FF1BF92AD40AD82031
- MD5 SHA1 SHA512 SSDEEP TLSH