Analysis
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max time kernel
150s -
max time network
125s -
platform
windows7_x64 -
resource
win7-20231215-en -
resource tags
arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system -
submitted
25-12-2023 01:08
Static task
static1
Behavioral task
behavioral1
Sample
1f4f8dc4c97b864e9da8a09a33c5169a.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
1f4f8dc4c97b864e9da8a09a33c5169a.exe
Resource
win10v2004-20231215-en
General
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Target
1f4f8dc4c97b864e9da8a09a33c5169a.exe
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Size
240KB
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MD5
1f4f8dc4c97b864e9da8a09a33c5169a
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SHA1
263b8068882663bcdee0833a5e32ea768a393246
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SHA256
5b46137113d9c84be43ed744bda2377c5bdeb224a7256f952b11e5df8cfdd6b6
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SHA512
ccd2c279a3683b6a36e3fb631609f9ba853454f3abfd81337a0718dd013d65e2658283e3af3a8600737107aeb1bf451ee61106206d7eebef3955b53417fee998
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SSDEEP
6144:IUN3dwqsNweTAB0EqxF6snji81RUinKchht/S30:1dQ5JD6k
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 1f4f8dc4c97b864e9da8a09a33c5169a.exe Set value (int) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fuueca.exe -
Executes dropped EXE 1 IoCs
pid Process 2364 fuueca.exe -
Loads dropped DLL 2 IoCs
pid Process 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /k" 1f4f8dc4c97b864e9da8a09a33c5169a.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /o" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /e" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /q" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /t" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /w" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /r" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /b" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /a" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /z" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /j" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /x" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /v" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /m" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /k" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /d" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /g" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /s" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /c" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /p" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /h" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /u" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /l" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /f" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /y" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /i" fuueca.exe Set value (str) \REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000\Software\Microsoft\Windows\CurrentVersion\Run\fuueca = "C:\\Users\\Admin\\fuueca.exe /n" fuueca.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe 2364 fuueca.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 2364 fuueca.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2208 wrote to memory of 2364 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 28 PID 2208 wrote to memory of 2364 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 28 PID 2208 wrote to memory of 2364 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 28 PID 2208 wrote to memory of 2364 2208 1f4f8dc4c97b864e9da8a09a33c5169a.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\1f4f8dc4c97b864e9da8a09a33c5169a.exe"C:\Users\Admin\AppData\Local\Temp\1f4f8dc4c97b864e9da8a09a33c5169a.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Loads dropped DLL
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2208 -
C:\Users\Admin\fuueca.exe"C:\Users\Admin\fuueca.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:2364
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
240KB
MD5e2f1e364a1c2096b39cb8597a9e67978
SHA19c42f491c4e2327bd282f9375bdfb5403f3a3bca
SHA2568f90122c7aea5ccad94724bbf325c36ac373770aecc77998e8d64a4882621ef9
SHA512cebf54a64ea3bfdf7707afec61cd86e64b80bda2a6f405c885c5cab1dad509bde6e11b2a6072ac7bde2b3aca3988f5184bcd05ee5f5f15fcf52e7c3d32782ad4