Analysis
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max time kernel
149s -
max time network
118s -
platform
windows7_x64 -
resource
win7-20231129-en -
resource tags
arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system -
submitted
09-04-2024 20:26
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cf2710ca711e03c51b52c1f5f20b5f9c.exe
Resource
win7-20231129-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
cf2710ca711e03c51b52c1f5f20b5f9c.exe
Resource
win10v2004-20240226-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
cf2710ca711e03c51b52c1f5f20b5f9c.exe
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Size
204KB
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MD5
cf2710ca711e03c51b52c1f5f20b5f9c
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SHA1
6667784ce7d182d01fdc5c7e2ee003301155ff41
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SHA256
bc64bd5b8f5795d6ca0fadb314f384a717bd9c527d701d3f50ea6cb44f7eb894
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SHA512
3f6764fb7417bed9b132604d5718bfe01ef6c9fb4412a3eeb5da31acbb1fd3ba2b2602d0adaae757332e516eb3afe6f4e853da83dc7ba67f1a8b5743046fafa3
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SSDEEP
3072:Iu814D52DTWor5J80AisM/8jp6tdlWbRVslWQifgO4F07lD:ItTWqJlRsM/8E/IbRuLifI07
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-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cf2710ca711e03c51b52c1f5f20b5f9c.exe Set value (int) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" yiiobe.exe -
Executes dropped EXE 1 IoCs
pid Process 2384 yiiobe.exe -
Loads dropped DLL 2 IoCs
pid Process 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe -
Adds Run key to start application 2 TTPs 53 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /c" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /r" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /S" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /q" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /D" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /X" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /G" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /l" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /K" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /M" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /x" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /i" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /b" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /g" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /z" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /s" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /w" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /Y" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /y" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /O" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /t" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /h" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /E" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /P" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /C" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /N" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /J" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /m" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /Z" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /T" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /k" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /v" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /d" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /F" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /L" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /W" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /u" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /o" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /p" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /a" cf2710ca711e03c51b52c1f5f20b5f9c.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /j" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /B" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /I" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /f" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /U" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /a" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /V" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /Q" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /e" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /H" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /A" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /n" yiiobe.exe Set value (str) \REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Microsoft\Windows\CurrentVersion\Run\yiiobe = "C:\\Users\\Admin\\yiiobe.exe /R" yiiobe.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 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe 2384 yiiobe.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 2384 yiiobe.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1936 wrote to memory of 2384 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 28 PID 1936 wrote to memory of 2384 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 28 PID 1936 wrote to memory of 2384 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 28 PID 1936 wrote to memory of 2384 1936 cf2710ca711e03c51b52c1f5f20b5f9c.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\cf2710ca711e03c51b52c1f5f20b5f9c.exe"C:\Users\Admin\AppData\Local\Temp\cf2710ca711e03c51b52c1f5f20b5f9c.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:1936 -
C:\Users\Admin\yiiobe.exe"C:\Users\Admin\yiiobe.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:2384
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
204KB
MD58780534bf5420fea6470b8c18c984dc1
SHA1f8e952efa5773586fbd7b6a8ee81b5a1100e4f89
SHA256b2f26baf1feedb71fb1dfa87eeb78b48fafee282e999cac1a5cc714c0455b860
SHA512a34eb6eebf2070049b60ca2bcfa0bf8130c1f5b4e42e65cd8d7aaf29918507aa67cd38daabd7bb3bed0086111b7eea8560d25ff158dd0ba0fddcead34f35286f