Analysis
- max time kernel
134s - max time network
102s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
31/08/2024, 01:45
Static task
static1
Behavioral task
behavioral1
Sample
2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe
Resource
win7-20240705-en
9 signatures
150 seconds
General
- Target 2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe
- Size 2.0MB
- Sample240831-b6g6fayelf
- SHA256 d3071643080dbeff15c828403900fa0f97eb73f28fa9edc4aa277b5dca9d0a3b
- MD5 b1deb6df5c05c672790038cd947d7c85
- SHA1 3ac2c5df37c289ab455ae722b0e3c68da5183dd1
- SHA512 80b0cb5fc8f9eaa4e644c0fc14d2bc5b2ed32e998f4c83aa76350f66a6dc5d6e464a1d0b4744a5d442239761f86460d7a2c32273252a9e38c84d443e8a28a00d
- SSDEEP 49152:Dk0eo5nJIioHlq+c6gXR92IISNbecXxHDJhf3M7sSZOZVVNa6Z2:Dk25nHoHlq+c6y92IBRecXxH9hf3M7su
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x00090000000233e2-1.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x00090000000233e2-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 820 2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe -
resource yara_rule behavioral2/files/0x00090000000233e2-1.dat upx behavioral2/memory/820-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/820-8-0x0000000010000000-0x0000000010030000-memory.dmp upx - Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.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 2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 820 2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 820 2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-08-31_b1deb6df5c05c672790038cd947d7c85_bkransomware_floxif_hijackloader.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:820
Network
MITRE ATT&CK Enterprise v15
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
- MD5 SHA1 SHA512 SSDEEP