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
09-09-2024 15:47
Static task
static1
Behavioral task
behavioral1
Sample
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe
Resource
win10v2004-20240802-en
General
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Target
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe
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Size
1.9MB
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MD5
8261f3b6eedbd6c9755b470153556343
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SHA1
12ee20f901feb1c43e9ae3e6ecf776f287fcf175
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SHA256
6e9340a67003cd9069b972c801788b15375d29ee02fb3e49f0f9b2604974742f
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SHA512
49d7ffb857a3d8e03088d0671558b3d69495d69530efec04e2ccd89e9d43f096ef4a64feaf615813286223b40cab19225ec9e31df158151b053daa5a3cbebe30
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SSDEEP
49152:3UtFJMs/8OdZ9S7HV6lobLZDH/Kl8jxNUOxDnOmwmVn8R9kWv53:EtnMs/8OH9MV6loHZDa8lN9DnOmwmI3
Malware Config
Signatures
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Detects Floxif payload 1 IoCs
Processes:
resource yara_rule \Program Files\Common Files\System\symsrv.dll floxif -
ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
Processes:
resource yara_rule \Program Files\Common Files\System\symsrv.dll acprotect -
Loads dropped DLL 1 IoCs
Processes:
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exepid process 2532 2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe -
Processes:
resource yara_rule behavioral1/memory/2532-3-0x0000000010000000-0x0000000010030000-memory.dmp upx \Program Files\Common Files\System\symsrv.dll upx behavioral1/memory/2532-11-0x0000000010000000-0x0000000010030000-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.
Processes:
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exedescription ioc process File opened (read-only) \??\e: 2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe -
Drops file in Program Files directory 1 IoCs
Processes:
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exedescription ioc process File created C:\Program Files\Common Files\System\symsrv.dll 2024-09-09_8261f3b6eedbd6c9755b470153556343_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.
Processes:
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exepid process 2532 2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exedescription pid process Token: SeDebugPrivilege 2532 2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-09-09_8261f3b6eedbd6c9755b470153556343_bkransomware_floxif.exe"C:\Users\Admin\AppData\Local\Temp\2024-09-09_8261f3b6eedbd6c9755b470153556343_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:2532
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab