Analysis
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max time kernel
93s -
max time network
119s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05-09-2024 12:37
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe
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Size
2.1MB
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MD5
cd3455a2f8f2413660bb47bbe9fdfc5a
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SHA1
83d805763714ade70cc52f62a0c36693715b3e0a
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SHA256
9488ef0cbaa433e6d3b4e43267ec8bc7ecaf16588a059930e9498489ddd4a2d4
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SHA512
61a3221e5e54ef7143585540a4ee2b038da3e7347bcb73cc467f80328689d6f4e12972febe404784f98aa11bb235be0df4b12b425d03494a776d1d0b86860262
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SSDEEP
49152:/ofqq2msxBMWSxRio/D4UQGJ6+Y59N2153eqPk4utu+NNAVw6rPYVA:gCq2R3MWSxN/MvGJrYx2r31Pk4utCV6A
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000a000000023427-1.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 behavioral2/files/0x000a000000023427-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2448 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe -
resource yara_rule behavioral2/files/0x000a000000023427-1.dat upx behavioral2/memory/2448-4-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/2448-15-0x0000000010000000-0x0000000010030000-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: 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_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 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2448 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe 2448 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2448 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2448 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe 2448 2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_cd3455a2f8f2413660bb47bbe9fdfc5a_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
- Suspicious use of SetWindowsHookEx
PID:2448
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab