Analysis
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max time kernel
141s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20240611-en -
resource tags
arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system -
submitted
15-06-2024 16:25
Behavioral task
behavioral1
Sample
fix-injector.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
fix-injector.exe
Resource
win10v2004-20240508-en
General
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Target
fix-injector.exe
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Size
3.6MB
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MD5
c01178fa2626c8d717fde33e03a3876e
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SHA1
afee86588501928ae39eec90d6c1d6028f243689
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SHA256
18c0bba23af8256a5f9e3de3038555a6a706dddd0c24123c011c1a8aa4d78156
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SHA512
233744740883ab71ea7bb8c493db24c062e480f547cf13cd3210a3fa165368f7eb3cf908a6da3f6a5f81fbfe415cdfb03fb1ad38d6ff27ac9e8df417fe7ec7c0
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SSDEEP
98304:sdvPB9yZdnrBYwSsHrOfmjSctW70xGtat:uvpMZdnrBhl67m3t
Malware Config
Signatures
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
Processes:
fix-injector.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ fix-injector.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
fXILX.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\ZCsnaWPyUxTkb\ImagePath = "\\??\\C:\\Users\\Admin\\AppData\\Local\\Temp\\ZCsnaWPyUxTkb" fXILX.exe -
Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
Processes:
fix-injector.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion fix-injector.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion fix-injector.exe -
Executes dropped EXE 1 IoCs
Processes:
fXILX.exepid process 2852 fXILX.exe -
Loads dropped DLL 1 IoCs
Processes:
fix-injector.exepid process 2500 fix-injector.exe -
Processes:
resource yara_rule behavioral1/memory/2500-0-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-2-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-4-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-7-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-5-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-3-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-6-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-16-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-17-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-18-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-19-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-21-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida behavioral1/memory/2500-26-0x000000013F2B0000-0x000000013FC37000-memory.dmp themida -
Processes:
fix-injector.exedescription ioc process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA fix-injector.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
fix-injector.exepid process 2500 fix-injector.exe -
Drops file in Windows directory 1 IoCs
Processes:
fix-injector.exedescription ioc process File created C:\Windows\SoftwareDistribution\Download\fXILX.exe fix-injector.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: LoadsDriver 1 IoCs
Processes:
fXILX.exepid process 2852 fXILX.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
fXILX.exedescription pid process Token: SeLoadDriverPrivilege 2852 fXILX.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
fix-injector.exedescription pid process target process PID 2500 wrote to memory of 2688 2500 fix-injector.exe cmd.exe PID 2500 wrote to memory of 2688 2500 fix-injector.exe cmd.exe PID 2500 wrote to memory of 2688 2500 fix-injector.exe cmd.exe PID 2500 wrote to memory of 2724 2500 fix-injector.exe cmd.exe PID 2500 wrote to memory of 2724 2500 fix-injector.exe cmd.exe PID 2500 wrote to memory of 2724 2500 fix-injector.exe cmd.exe PID 2500 wrote to memory of 2852 2500 fix-injector.exe fXILX.exe PID 2500 wrote to memory of 2852 2500 fix-injector.exe fXILX.exe PID 2500 wrote to memory of 2852 2500 fix-injector.exe fXILX.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\fix-injector.exe"C:\Users\Admin\AppData\Local\Temp\fix-injector.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:2500 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c cls2⤵PID:2688
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C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c color 92⤵PID:2724
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C:\Windows\SoftwareDistribution\Download\fXILX.exe"C:\Windows\SoftwareDistribution\Download\fXILX.exe"2⤵
- Sets service image path in registry
- Executes dropped EXE
- Suspicious behavior: LoadsDriver
- Suspicious use of AdjustPrivilegeToken
PID:2852
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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\Windows\SoftwareDistribution\Download\fXILX.exeFilesize
100KB
MD503997b52220aa284bd6da2f39a82b002
SHA17aa87879a471cbda376914927a3b6b8274a6d642
SHA2567873158c42440a31a986c1472c0982404f54325ccd0c8b3a6e63a707277945a2
SHA512e7ccf9300166cb8c3d81153e9675240778a4910b2f503f8c2293c273f42eee6fe0841d66fe0baa91d9355392b06b85008921a75c90969d2b823d2092935efef9
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memory/2500-3-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-1-0x0000000077B10000-0x0000000077B12000-memory.dmpFilesize
8KB
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memory/2500-4-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-7-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-5-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-0-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-6-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-2-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-16-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-17-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-18-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-19-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-21-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB
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memory/2500-26-0x000000013F2B0000-0x000000013FC37000-memory.dmpFilesize
9.5MB