Analysis
- max time kernel
149s - max time network
131s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
21/04/2026, 08:47
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe
Resource
win10v2004-20260130-en
13 signatures
150 seconds
General
- Target cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe
- Size 4.0MB
- Sample260421-kp2cesev3w
- SHA256 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15
- MD5 a6bd7a531d86f1f7fb8b95cabee05816
- SHA1 2facb95dbb638e3834c81887b9a857db46359ab0
- SHA512 dac89cfae59d5412ea0a66aefd458af83d0f786fea17293a324c194dde0d478e20012e53c5626bbc51a3a61ccfd3ae2529a04aead7bae939a04dc96526286458
- SSDEEP 49152:KzMMrgh9fRkTE7uanzeU7h2C2cpFf83BwO1/xeTAS9pdGzg1sKPxCQeTDIjlkDns:K14ZGghPpFjO1/wASdwe6Fx8
- TLSH T1D116AE11BB42C0B2EAE202B295BEAF7F447CA624472580D7D3D44EAD59306D23B37B57
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0008000000000436-1.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0008000000000436-1.dat acprotect - Loads dropped DLL 2 IoCs
pid Process 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe - Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\F: cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe File opened (read-only) \??\e: cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe - Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe -
resource yara_rule behavioral2/files/0x0008000000000436-1.dat upx behavioral2/memory/1400-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/1400-20-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/1400-23-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/1400-32-0x0000000010000000-0x0000000010030000-memory.dmp upx - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe File created \??\c:\program files\common files\system\symsrv.dll.000 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.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 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1400 cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe"C:\Users\Admin\AppData\Local\Temp\cfd22ccabc913bd118b0ed0914d7c80531f7283afb60f56e1cf3455912bd0d15.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1400
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:\Users\Admin\AppData\Local\Temp\dr.dll
- Size 166KB
- SHA256 ae9fbeba9754149496261d88bbef1130d5b123a735a493a481336134027deaf4
- MD5 2150a2c891ee6649c91ac41e4f7a238e
- SHA1 4ffeb31926f03678a4e1be8752448356a701faf0
- SHA512 c4aca2fc315497ef9d03e40220236c2adf90f4805361a471b9ca4b70e2acdd79f37597bb5f83e460335753a6276cb35fc1ce6e8355148ed6091da461c68d36ed
- SSDEEP 3072:wjzsPOayPOolwwDIUBkBoFlXpxnVtzDtuD21qJ1i:wsPOayPOolwwDIUBkBoFlXplno21S4
- TLSH T178F308017A00A135FAFF16BA8EFE2A5C92BCA950071465D3E3C85D7E4FA18F2793151B
- MD5 SHA1 SHA512 SSDEEP TLSH