Analysis
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max time kernel
147s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
12-12-2024 12:33
Static task
static1
Behavioral task
behavioral1
Sample
2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe
Resource
win10v2004-20241007-en
General
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Target
2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe
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Size
4.6MB
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MD5
aa8552550b10fef1d2a61a5a59a333c9
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SHA1
646a8fb2b3b461b98fda74f78d66d0b5b84b247f
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SHA256
d640c0f4e042e111f922b4e4bb56ed0057484d17d562a9ebf7cca925864c0c6d
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SHA512
28d61ad6dbab5976953e65f1b9cca03325f03b793998b0bfd502abda0c845a359e880c851ad842665cbaee86c792778b5fdfc9a025d136f316af53f6fb027786
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SSDEEP
98304:l1U+LVLVGZb9XBE75goa5qjiAfPF+i7ZGOYWyr/th:vPq7aaUX7EvWyLn
Malware Config
Signatures
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Floxif family
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Detects Floxif payload 1 IoCs
resource yara_rule behavioral2/files/0x000c000000023b21-1.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/0x000c000000023b21-1.dat acprotect -
Loads dropped DLL 1 IoCs
pid Process 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.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: 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe -
resource yara_rule behavioral2/memory/4172-2-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/files/0x000c000000023b21-1.dat upx behavioral2/memory/4172-15-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4172-24-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4172-30-0x0000000010000000-0x0000000010030000-memory.dmp upx behavioral2/memory/4172-42-0x0000000010000000-0x0000000010030000-memory.dmp upx -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\Common Files\System\symsrv.dll 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe File created \??\c:\program files\common files\system\symsrv.dll.000 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.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 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4172 2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe"C:\Users\Admin\AppData\Local\Temp\2024-12-12_aa8552550b10fef1d2a61a5a59a333c9_floxif_mafia_revil.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4172
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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Filesize
175B
MD51130c911bf5db4b8f7cf9b6f4b457623
SHA148e734c4bc1a8b5399bff4954e54b268bde9d54c
SHA256eba08cc8182f379392a97f542b350ea0dbbe5e4009472f35af20e3d857eafdf1
SHA51294e2511ef2c53494c2aff0960266491ffc0e54e75185427d1ccedae27c286992c754ca94cbb0c9ea36e3f04cd4eb7f032c551cf2d4b309f292906303f1a75fa0