Analysis
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max time kernel
121s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
29-12-2024 13:22
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe
Resource
win7-20240903-en
General
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Target
2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe
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Size
185KB
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MD5
04f0871f4ace19227fd57a9b9d1da26a
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SHA1
549ae92262d92034c14242626bf0e61bb8011206
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SHA256
416b30e501924a04f79d5107c3128e741cbeff15d2a648428b82425ce38d7357
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SHA512
77169390631083f67409e50e8caa5bc158f36851bd8daf94389c510e4326fddbca4776795cd7a6ce1e0ed84e0cba2c069674bf015786a35f9b042722d3e1eff1
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SSDEEP
3072:ZeGW2y0YDe9kckPac35yW2lQBV+UdE+rECWp7hKyRnx:Z/WU3T9mIcBV+UdvrEFp7hKU
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral1/files/0x0007000000012117-1.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/0x0007000000012117-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 2092 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.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: 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe -
resource yara_rule behavioral1/files/0x0007000000012117-1.dat upx behavioral1/memory/2092-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral1/memory/2092-11-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_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 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 2092 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2092 2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-29_04f0871f4ace19227fd57a9b9d1da26a_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
PID:2092
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab