Analysis
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max time kernel
93s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
19-12-2024 07:23
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe
Resource
win7-20240903-en
General
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Target
2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe
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Size
4.7MB
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MD5
2fe3ff96b43df493a82bb86939297b4f
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SHA1
92beadedd231605d70e3425f0b4705f9b0dcd192
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SHA256
d315134d1ade6fe163e93b072e7e9a87abbafa66f64fda6f16a1b62d9297417e
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SHA512
ddfe911e5633fb35aa8265974e01dd0d1f7ac6302b88fdbca01b703841a8b2c33f9e3ded741232519c01a72c39c9c3515bbb4470705abffcf76dbbe1f33f589f
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SSDEEP
98304:kBe40bl9dRPenSX5gSuCY0DHDB1dE46V3u/f:h3NenEY8L/f
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000c000000023b22-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000c000000023b22-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 1600 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.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) \??\e: 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe -
resource yara_rule behavioral2/memory/1600-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/files/0x000c000000023b22-1.dat upx behavioral2/memory/1600-14-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
pid pid_target Process procid_target 1484 1600 WerFault.exe 82 1816 1600 WerFault.exe 82 -
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 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1600 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe 1600 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe 1600 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe 1600 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1600 2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-19_2fe3ff96b43df493a82bb86939297b4f_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-19_2fe3ff96b43df493a82bb86939297b4f_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:1600 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 12682⤵
- Program crash
PID:1484
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1600 -s 12762⤵
- Program crash
PID:1816
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1600 -ip 16001⤵PID:3744
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 1600 -ip 16001⤵PID:1384
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab