Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
05-09-2024 12:35
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe
Resource
win7-20240903-en
General
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Target
2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe
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Size
2.1MB
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MD5
b19c0ffd7010f0895b5db0dee838ce1d
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SHA1
8ba0d27dd24cc0c65673453b12a7b8f471c8920e
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SHA256
b989196a6f6166a30bc3df0ee3f7bf61bd3afcba193ceafbd16c5ac45b5f3609
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SHA512
7068d717e4f1cc12f0601bfce27b86f0a932ecc854a958d342f1344e9a47867a525bb9813d31866c4acb1e7d725861adc673a49736268bd7bc377c4fded5b9fb
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SSDEEP
49152:/ofqq2msxBMfSxRio/D4aQGJ6+Y59N2153kqPk4utu+NNAVw6rPYA:gCq2R3MfSxN/M9GJrYx2r3vPk4utCVZ
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x0007000000012116-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x0007000000012116-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 3052 2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe -
resource yara_rule behavioral1/memory/3052-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/files/0x0007000000012116-1.dat upx behavioral1/memory/3052-12-0x0000000010000000-0x0000000010030000-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_b19c0ffd7010f0895b5db0dee838ce1d_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_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_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_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3052 2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3052 2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 3052 2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe 3052 2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-05_b19c0ffd7010f0895b5db0dee838ce1d_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:3052
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab