Analysis
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max time kernel
149s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
11/11/2024, 12:25
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe
Resource
win7-20241010-en
General
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Target
2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe
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Size
14.4MB
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MD5
5fe9835021577056f44d26ca70583ecc
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SHA1
0fbffe6f0dcf317e4e54e0c8cf34d75ba6e01f6e
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SHA256
97c6c3576c4bb4b0cb8e61b9aba3d7f1f5f8fa45accb705acff6e478c91a828c
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SHA512
d0dbad9663e3f1afb4bbdbc7473300220011f4a4a0b19937b69bd1a66abfecde45d5fe9ef20da3fc8cce52f267e7d2fb6766c5f48a09704210d30d0457a955d8
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SSDEEP
98304:8T8tQIZETGdOfW0+bs0ZmjBjcaw2lsuze/iBXsLVMZHvOyGCPvPZBDByQNdXCd0s:8gt30t0u/Zk2VXCd0LWkVgeXSf
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000c000000023b99-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000c000000023b99-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.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: 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
pid Process 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
resource yara_rule behavioral2/memory/4696-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/files/0x000c000000023b99-1.dat upx behavioral2/memory/4696-41-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4696-47-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created \??\c:\program files\common files\system\symsrv.dll.000 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe File created C:\Program Files\Common Files\System\symsrv.dll 2024-11-11_5fe9835021577056f44d26ca70583ecc_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 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
Suspicious use of SendNotifyMessage 1 IoCs
pid Process 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe 4696 2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-11_5fe9835021577056f44d26ca70583ecc_bkransomware_floxif_hijackloader.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:4696
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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Filesize
14.3MB
MD57740b91aa5877cd86117db93dc5b0426
SHA1b02a401b86aaa41768a15e4f027dccb812341fb7
SHA25644df3a987ad432ea7942d8923dd2a8e29f3204119274ace5b0c5181838557564
SHA51288890d8956872c8369ed2b3ede2349ae7021a770182dc3904f1ed983ae006355067d294abd0c5d77fc40c20cbad9e33e76bb29fd4d778f11079926bbc58e810f