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Analysis
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max time kernel
154s -
max time network
73s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
30/10/2022, 05:06
Static task
static1
Behavioral task
behavioral1
Sample
fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe
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Size
116KB
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MD5
a288466018cee60591577b50f8c23070
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SHA1
5952e02a89ab352fd4e5c1d7be04bc65a1966119
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SHA256
fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3
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SHA512
9f2b24b7b9e93e117a73461f49a7a2919c41fff00bc62460a9ba5a13a4f424be958c70d3c23b3ae2b068c4f0d0255a0dc82ec66bc441ea1db6c5836fa0834421
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SSDEEP
1536:w1pxoa++tv8Kw6KBOIW4Z8HO1Zwt0f4HeDUEdMOPy9sbgNLwo7JaSi:wp6+tvfIr1ZNDUEdawQU
Score
10/10
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-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" feoifek.exe -
Executes dropped EXE 1 IoCs
pid Process 1540 feoifek.exe -
Loads dropped DLL 2 IoCs
pid Process 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe -
Adds Run key to start application 2 TTPs 55 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /S" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /o" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /H" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /p" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /y" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /L" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /n" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /D" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /b" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /s" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /Q" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /h" feoifek.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /m" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /J" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /z" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /O" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /W" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /U" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /B" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /I" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /l" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /Y" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /j" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /R" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /k" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /c" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /i" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /M" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /N" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /g" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /a" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /A" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /u" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /y" fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /X" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /d" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /x" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /K" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /r" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /q" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /t" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /e" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /T" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /f" feoifek.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\ fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /w" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /P" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /Z" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /G" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /v" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /F" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /C" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /E" feoifek.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\feoifek = "C:\\Users\\Admin\\feoifek.exe /V" feoifek.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe 1540 feoifek.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 1540 feoifek.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1740 wrote to memory of 1540 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 28 PID 1740 wrote to memory of 1540 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 28 PID 1740 wrote to memory of 1540 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 28 PID 1740 wrote to memory of 1540 1740 fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.exe"C:\Users\Admin\AppData\Local\Temp\fd36e4ef40c0091e1eacd6c63861617f3476f6f04d217500f743c211c7b0b0e3.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:1740 -
C:\Users\Admin\feoifek.exe"C:\Users\Admin\feoifek.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:1540
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
116KB
MD5c0a116cb03084dd203ede4a30f8d18a9
SHA14bcbc7da6913c74295ef1e03a67c696ae89791da
SHA256d9bd01bb3d59518959bcae78b96fda1bec24c378560db91f46bef9e89e2ec42a
SHA51297644fb73d14e63a1bf4f0e5a9c23c3a4d843731d00c5e25332de0e1c0b0d47c24239998703db8453696a45cbb1a58db9a7fe5ab60a1ece319a7278147d4fee6
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Filesize
116KB
MD5c0a116cb03084dd203ede4a30f8d18a9
SHA14bcbc7da6913c74295ef1e03a67c696ae89791da
SHA256d9bd01bb3d59518959bcae78b96fda1bec24c378560db91f46bef9e89e2ec42a
SHA51297644fb73d14e63a1bf4f0e5a9c23c3a4d843731d00c5e25332de0e1c0b0d47c24239998703db8453696a45cbb1a58db9a7fe5ab60a1ece319a7278147d4fee6
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Filesize
116KB
MD5c0a116cb03084dd203ede4a30f8d18a9
SHA14bcbc7da6913c74295ef1e03a67c696ae89791da
SHA256d9bd01bb3d59518959bcae78b96fda1bec24c378560db91f46bef9e89e2ec42a
SHA51297644fb73d14e63a1bf4f0e5a9c23c3a4d843731d00c5e25332de0e1c0b0d47c24239998703db8453696a45cbb1a58db9a7fe5ab60a1ece319a7278147d4fee6
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Filesize
116KB
MD5c0a116cb03084dd203ede4a30f8d18a9
SHA14bcbc7da6913c74295ef1e03a67c696ae89791da
SHA256d9bd01bb3d59518959bcae78b96fda1bec24c378560db91f46bef9e89e2ec42a
SHA51297644fb73d14e63a1bf4f0e5a9c23c3a4d843731d00c5e25332de0e1c0b0d47c24239998703db8453696a45cbb1a58db9a7fe5ab60a1ece319a7278147d4fee6