Analysis
- max time kernel
148s - max time network
148s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/08/2026, 02:12
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe
Resource
win10v2004-20260513-en
15 signatures
150 seconds
General
- Target 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe
- Size 884KB
- Sample260817-cm2amsha93
- SHA256 e194e4826c5e08386c908630b5c69829cc41801531edf7b283987f28a9683a34
- MD5 656c34cc148ea25d45fe772cfd0d11fa
- SHA1 8665adbd27e02a94629d9a4126c3528e9d152995
- SHA512 2169b0ad209a7bd433dffb9c507508b7f3fba08a66073d965cd068934ca3df2efdf031ced0575a4afaf6f617cc8ed1bc293840b949483c240b96c30beabe57b6
- SSDEEP 12288:ZaWzgMr7v3qnCiiErQohh0F4fJCJ8lnyOQwlsZk03iGFRABjvrEH7A:4aH/v6CCrjNnyOQ9q0SGirEH7A
- TLSH T14215C012B7C682F6D9933970397BE316EB35692D0327C487A7E13E739F251015B2A362
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Modifies security service 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\wuauserv\Start = "4" 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe - Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000900000001138e-1.dat floxif - UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral2/files/0x000900000001138e-1.dat UPX behavioral2/memory/4676-4-0x0000000010000000-0x0000000010030000-memory.dmp UPX behavioral2/memory/4676-58-0x0000000010000000-0x0000000010030000-memory.dmp UPX behavioral2/memory/4676-61-0x0000000010000000-0x0000000010030000-memory.dmp UPX behavioral2/memory/4676-64-0x0000000010000000-0x0000000010030000-memory.dmp UPX - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000900000001138e-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe - Enumerates connected drives 3 TTPs 1 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\d: 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe -
resource yara_rule behavioral2/files/0x000900000001138e-1.dat upx behavioral2/memory/4676-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4676-58-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4676-61-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4676-64-0x0000000010000000-0x0000000010030000-memory.dmp upx - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe - Suspicious behavior: GetForegroundWindowSpam 1 IoCs
pid Process 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4676 2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.exe"1⤵
- Modifies security service
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:4676
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Program Files\Common Files\System\symsrv.dll
- Size 67KB
- SHA256 de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
- MD5 7574cf2c64f35161ab1292e2f532aabf
- SHA1 14ba3fa927a06224dfe587014299e834def4644f
- SHA512 4db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
- SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZL:c8y93KQjy7G55riF1cMo03V
- TLSH T17863F1372AB5807DDD210D37949F835AB771E5A76C20643FC25907D988B8DD0E3239AE
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Program Files\Common Files\System\symsrv.dll.000
- Size 114B
- SHA256 aefc503b1ed462d7b6280228a7b5b710792273b78934426f88325341ac5b5a92
- MD5 e609411db8aa6775d0344c75c23ae79b
- SHA1 1d2ff6194bf159ce36cd0461cd3da29486d1e97d
- SHA512 6884ff5c07bc687132c965a59cb8c5a898a25da74c6c846c1d6089ddca8007cb7e4d2f8520bdce9fbcf6e2f9c9e5c28d8c8d6d049d3522470bdc7d38bbfa0ad0
- TLSH T1FFB09262AA2791EAE1AA224505A0248C1ED0B62AB48638002EBA5A4E93256A85916147
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\2026-08-17_656c34cc148ea25d45fe772cfd0d11fa_agent-tesla_backswap_elex_floxif_remcos_stop.ini
- Size 2KB
- SHA256 ad3c9f7dc51bea69e317bb2568c22008c380abee122409de353f26b4d1e445f5
- MD5 b16fe7d5ce851f22ed1539677b3c9bbc
- SHA1 011696f3fb23f498ad54a117b657ab2f5def14a9
- SHA512 63b67773156f77d2b1a02935541cdad090c7f657a83052394b330c2ceca81ebce4dbc254b63cd8e1344bd5ef140732755f44d854bccc311dbf387a0a217bb96d
- TLSH T1A3514A1722E84619F6F37B44E6B90A720B367C96AD3CD94C49D10D4E48E0E409873BFB
- MD5 SHA1 SHA512 TLSH