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Analysis
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max time kernel
80s -
max time network
19s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
10/10/2024, 00:59
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe
Resource
win7-20240903-en
General
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Target
2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe
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Size
3.1MB
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MD5
a53a636dd9a5f18fb128e45154b7f32d
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SHA1
a7c5585761adaad1094f96a345f061c8af189359
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SHA256
f12df8ac63b003d427da3bb6852eb4ec66cdfad2232bd724bac504ce401e15b2
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SHA512
8e5983ccdf05362f42155e830d39bb57185142c596420ef03c596e0b1b04911e6154435a557a523d83182bdf9e605d7c3b123237a6808dab46992007a506963c
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SSDEEP
49152:1FKF6fexwvMMZib4zHT4ta1Y5mazJ0c5qLvbtCQZFSMd8:tfe8MMZibmHkk1Y5mad0c5qLvbtCDB
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x00030000000178b0-1.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.
resource yara_rule behavioral1/files/0x00030000000178b0-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 320 2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe -
resource yara_rule behavioral1/memory/320-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/files/0x00030000000178b0-1.dat upx behavioral1/memory/320-7-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.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 2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 320 2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 320 2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-10_a53a636dd9a5f18fb128e45154b7f32d_bkransomware_floxif.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:320
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab