Analysis
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max time kernel
118s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20-11-2024 12:42
Static task
static1
Behavioral task
behavioral1
Sample
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe
Resource
win7-20240903-en
General
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Target
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe
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Size
14.4MB
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MD5
d8efab44ee8888396e9001774bcfabfe
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SHA1
6d22a7bb86e216be35a0272733e73ba995b3583a
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SHA256
2fd8b84d9583c00eabe559aaa2347e657a34ca34c3927fe0ce31959b8d362fdd
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SHA512
f7c3dd1a63b12daaedc2c79f56557b288a60f5c3f01b3260395d4424c69aff22b5220db22be67ef02e842dab4e294c94773f1a9ea4771e364b35c0d371332fde
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SSDEEP
98304:8TatQIZETGdOfW0+bs0ZmjBjcaw2lsuze/iBXsLVMZHvOyGCPvPZFDByQNdXCd0I:8it30t0u/Zk2hXCd0LWkVgeXSL
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
Processes:
resource yara_rule behavioral1/files/0x000c0000000122e7-1.dat floxif -
Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
Processes:
resource yara_rule behavioral1/files/0x000c0000000122e7-1.dat acprotect -
Loads dropped DLL 1 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exepid Process 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_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.
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exedescription ioc Process File opened (read-only) \??\e: 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exepid Process 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Processes:
resource yara_rule behavioral1/memory/1404-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/files/0x000c0000000122e7-1.dat upx behavioral1/memory/1404-45-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/1404-103-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/1404-107-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exedescription ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-11-20_d8efab44ee8888396e9001774bcfabfe_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.
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exedescription ioc Process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\0563B8630D62D75ABBC8AB1E4BDFB5A899B24D43\Blob = 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 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exepid Process 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exedescription pid Process Token: SeDebugPrivilege 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exepid Process 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Suspicious use of SendNotifyMessage 1 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exepid Process 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
Processes:
2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exepid Process 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe 1404 2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-11-20_d8efab44ee8888396e9001774bcfabfe_bkransomware_floxif_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-11-20_d8efab44ee8888396e9001774bcfabfe_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
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1404
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
14.3MB
MD57740b91aa5877cd86117db93dc5b0426
SHA1b02a401b86aaa41768a15e4f027dccb812341fb7
SHA25644df3a987ad432ea7942d8923dd2a8e29f3204119274ace5b0c5181838557564
SHA51288890d8956872c8369ed2b3ede2349ae7021a770182dc3904f1ed983ae006355067d294abd0c5d77fc40c20cbad9e33e76bb29fd4d778f11079926bbc58e810f
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
181KB
MD54ea6026cf93ec6338144661bf1202cd1
SHA1a1dec9044f750ad887935a01430bf49322fbdcb7
SHA2568efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
SHA5126c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab