Analysis
- max time kernel
146s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system - submitted
09/09/2024, 15:49
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe
Resource
win7-20240903-en
11 signatures
150 seconds
General
- Target 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe
- Size 1.9MB
- Sample240909-s9phcsydpg
- SHA256 ec7939477eb5fc55d6821a72bc22fb9ad006d0d5929cc354683c99074e41c1fe
- MD5 967147007cf5263f1806a43522040875
- SHA1 72cdb3b604e2c14d3065e12d58ac8679546fe866
- SHA512 539793c9086998afb2ee3280938ddeb67cf927a6e06c31ed9f4c31a18f1feaece267652dd4ae33e8cf41c331f21ba0003ce558930be5a0ee9f2de2239cbac18f
- SSDEEP 49152:3UtFJhs/8OdZ9S7HV6lobLZ0H/Kl8jxNU9xDnOmwmVn8R9kWf:Etnhs/8OH9MV6loHZ0a8lNEDnOmwmE
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x0008000000023487-1.dat floxif - ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0008000000023487-1.dat acprotect - Loads dropped DLL 1 IoCs
pid Process 1948 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe -
resource yara_rule behavioral2/files/0x0008000000023487-1.dat upx behavioral2/memory/1948-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/1948-13-0x0000000010000000-0x0000000010030000-memory.dmp upx - 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) \??\e: 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe - Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.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 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1948 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe 1948 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1948 2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-09_967147007cf5263f1806a43522040875_bkransomware_floxif.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:1948
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
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