Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
10/01/2025, 07:24
Static task
static1
Behavioral task
behavioral1
Sample
2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe
Resource
win7-20240903-en
General
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Target
2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe
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Size
4.0MB
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MD5
27b174d459f5e299430420d125375d68
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SHA1
5c8ddccb23029f657658970d61b96faee5da765e
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SHA256
009ba04ee1d2115a92c304ad86d842db9efd328eda6e867709bbf5d6aca4b7fb
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SHA512
58e5d8e2e13ddf60bdc9a081e0ebd17800a8fb43d90323e0b08df805028dfbbee2216dae1f7167bad0bfd880eca89e766bd237df81f8dc401c7555b52bf59b92
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SSDEEP
98304:s4LBDHFyGeA+97aCo26vxkp3eMnSyo93S:nVZyGuICaO0yo93S
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000a000000023c08-1.dat floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x000a000000023c08-1.dat acprotect -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
Loads dropped DLL 1 IoCs
pid Process 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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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: 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
resource yara_rule behavioral2/files/0x000a000000023c08-1.dat upx behavioral2/memory/876-3-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/876-17-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/876-27-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/876-35-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created \??\c:\program files\common files\system\symsrv.dll.000 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe File created C:\Program Files\Common Files\System\symsrv.dll 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe -
Suspicious use of SetWindowsHookEx 9 IoCs
pid Process 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe 876 2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2025-01-10_27b174d459f5e299430420d125375d68_bkransomware_floxif.exe"1⤵
- Checks computer location settings
- 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:876
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab