Analysis
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max time kernel
150s -
max time network
52s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
04-12-2022 03:11
Static task
static1
Behavioral task
behavioral1
Sample
a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe
Resource
win7-20220901-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe
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Size
84KB
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MD5
93515037b089778904ffb6958eeee766
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SHA1
3af3d993f1f473f3b1534b71b368455aa6ce7520
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SHA256
a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51
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SHA512
76b601d33202787ac766347b2bf43e4374281d7a6086519bc30772bbef3a2a3026d0207a341d828975aa8b61d95310d71aae327ec5fda14eb5eeeaecc4ebaeab
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SSDEEP
768:sZXfb6K4Fd6eUCRGIIPP1y7oLacaIBLP3nEZCcLX/CVSFJ0T72Uap5/7TON+7:slWTFTUCxQ1a1ocTzFJ0T72VpF7
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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" caiezax.exe Set value (int) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe -
Executes dropped EXE 1 IoCs
pid Process 632 caiezax.exe -
Loads dropped DLL 2 IoCs
pid Process 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /f" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /n" a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /q" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /m" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /z" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /p" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /a" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /d" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /r" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /w" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /t" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /h" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /n" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /g" caiezax.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /j" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /y" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /x" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /u" caiezax.exe Key created \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\ a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /s" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /v" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /e" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /b" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /i" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /k" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /c" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /l" caiezax.exe Set value (str) \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Windows\CurrentVersion\Run\caiezax = "C:\\Users\\Admin\\caiezax.exe /o" caiezax.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 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe 632 caiezax.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 632 caiezax.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1536 wrote to memory of 632 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 26 PID 1536 wrote to memory of 632 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 26 PID 1536 wrote to memory of 632 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 26 PID 1536 wrote to memory of 632 1536 a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe 26
Processes
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C:\Users\Admin\AppData\Local\Temp\a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.exe"C:\Users\Admin\AppData\Local\Temp\a8f880cbcf778f382e4ec7df39d38fe1023fd338861b470332c21f545b60cc51.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:1536 -
C:\Users\Admin\caiezax.exe"C:\Users\Admin\caiezax.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:632
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
84KB
MD5419404b8b970cbfa4be10cb3f3685bea
SHA127aa14771e02fedfb0aac905077cfeda589cae50
SHA2568ac37449d681ddca5377bd40d409e9a7ffbbe85596d9b7d13f3db373678a7814
SHA5126f573d04dcd783f6aea75df41b105c999216c152dbfe173621d165ed0e73140dfbfe2e2e0c926a1e36e3588730bf8e7bdf2eaf9dbe0ed80902811605424795c6
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Filesize
84KB
MD5419404b8b970cbfa4be10cb3f3685bea
SHA127aa14771e02fedfb0aac905077cfeda589cae50
SHA2568ac37449d681ddca5377bd40d409e9a7ffbbe85596d9b7d13f3db373678a7814
SHA5126f573d04dcd783f6aea75df41b105c999216c152dbfe173621d165ed0e73140dfbfe2e2e0c926a1e36e3588730bf8e7bdf2eaf9dbe0ed80902811605424795c6
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Filesize
84KB
MD5419404b8b970cbfa4be10cb3f3685bea
SHA127aa14771e02fedfb0aac905077cfeda589cae50
SHA2568ac37449d681ddca5377bd40d409e9a7ffbbe85596d9b7d13f3db373678a7814
SHA5126f573d04dcd783f6aea75df41b105c999216c152dbfe173621d165ed0e73140dfbfe2e2e0c926a1e36e3588730bf8e7bdf2eaf9dbe0ed80902811605424795c6
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Filesize
84KB
MD5419404b8b970cbfa4be10cb3f3685bea
SHA127aa14771e02fedfb0aac905077cfeda589cae50
SHA2568ac37449d681ddca5377bd40d409e9a7ffbbe85596d9b7d13f3db373678a7814
SHA5126f573d04dcd783f6aea75df41b105c999216c152dbfe173621d165ed0e73140dfbfe2e2e0c926a1e36e3588730bf8e7bdf2eaf9dbe0ed80902811605424795c6