Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
21/08/2026, 16:47
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe
Resource
win10v2004-20260513-en
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe
Resource
win11ltsc2024-20260709-en
12 signatures
150 seconds
General
- Target 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe
- Size 216KB
- Sample260821-varjsaterf
- SHA256 6575a3fe0062647b6c658de68bf2316f82defc1c6984c3f2876a42c7eab8384c
- MD5 79a75e617ded009abc2fe150aac02643
- SHA1 df4b983859837275ce49f149ed17b1413e288385
- SHA512 768dd58ded9ce7ba789596396b4bc8f946544e8052f4aeffd5594d0e57f801bb793a32347596aa8d06f0a43cbb7854e7fc7647dd79a9953f704ff249ea90207e
- SSDEEP 6144:XFK9J2JPT/SUxCtnRPF9cCGrI2vsBV+UdvrEFp7hKY2c:XFK9ZBnRNhcvsBjvrEH7Cc
- TLSH T11C24CF0276C1D3FDE2700834346D6A81C9FAF87D0B6B5DABAB5421694F3C1C15A72E6B
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000600000001b714-1.dat floxif - UPX dump on OEP (original entry point) 5 IoCs
resource yara_rule behavioral2/files/0x000600000001b714-1.dat UPX behavioral2/memory/4076-3-0x0000000010000000-0x0000000010030000-memory.dmp UPX behavioral2/memory/4076-14-0x0000000010000000-0x0000000010030000-memory.dmp UPX behavioral2/memory/4076-18-0x0000000010000000-0x0000000010030000-memory.dmp UPX behavioral2/memory/4076-22-0x0000000010000000-0x0000000010030000-memory.dmp UPX - Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
- ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000600000001b714-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.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: 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe -
resource yara_rule behavioral2/files/0x000600000001b714-1.dat upx behavioral2/memory/4076-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4076-14-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4076-18-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4076-22-0x0000000010000000-0x0000000010030000-memory.dmp upx - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.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 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe - Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4076 2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe"C:\Users\Admin\AppData\Local\Temp\2026-08-21_79a75e617ded009abc2fe150aac02643_cobalt-strike_elex_floxif_play.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4076
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