Analysis
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max time kernel
174s -
max time network
184s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
20/10/2022, 22:17
Static task
static1
Behavioral task
behavioral1
Sample
adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
9 signatures
150 seconds
General
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Target
adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe
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Size
272KB
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MD5
583f1b9dde7d03853126f56f6d0c1be0
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SHA1
07fc7ecce8dd6d85771f126f8936b9655b50d290
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SHA256
adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673
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SHA512
e31bbaba33baa169d2070bb2af9346d1222c6619ea975d5ef30e611f6d3b2be11b0d6d6df52d0cd7cfa8397718e8f375ccd8a256ce8523cf0ad756bb15cc89c4
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SSDEEP
3072:F4M9gmss0FvbVJznCRcz/hVFA9MSs/PLLj+Qm4U3YwgTeA3k/H:KJvbfznH7O9G/PLLxU3YwgT4
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-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe Set value (int) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cihiw.exe -
Executes dropped EXE 1 IoCs
pid Process 2092 cihiw.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /q" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /m" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /a" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /t" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /s" cihiw.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cihiw.exe Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run\ adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /f" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /e" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /z" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /u" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /l" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /h" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /w" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /r" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /v" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /k" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /d" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /g" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /n" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /o" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /b" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /y" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /x" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /t" adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /p" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /c" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /i" cihiw.exe Set value (str) \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\cihiw = "C:\\Users\\Admin\\cihiw.exe /j" cihiw.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000_Classes\Local Settings adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 564 adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe 564 adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe 2092 cihiw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 564 adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe 2092 cihiw.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 564 wrote to memory of 2092 564 adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe 82 PID 564 wrote to memory of 2092 564 adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe 82 PID 564 wrote to memory of 2092 564 adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe"C:\Users\Admin\AppData\Local\Temp\adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:564 -
C:\Users\Admin\cihiw.exe"C:\Users\Admin\cihiw.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:2092
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:3656
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
272KB
MD5583f1b9dde7d03853126f56f6d0c1be0
SHA107fc7ecce8dd6d85771f126f8936b9655b50d290
SHA256adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673
SHA512e31bbaba33baa169d2070bb2af9346d1222c6619ea975d5ef30e611f6d3b2be11b0d6d6df52d0cd7cfa8397718e8f375ccd8a256ce8523cf0ad756bb15cc89c4
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Filesize
272KB
MD5583f1b9dde7d03853126f56f6d0c1be0
SHA107fc7ecce8dd6d85771f126f8936b9655b50d290
SHA256adf98800ba71a1a6bdc5b51889fb4fc866271d9e4a327a5c94bb34ea01c37673
SHA512e31bbaba33baa169d2070bb2af9346d1222c6619ea975d5ef30e611f6d3b2be11b0d6d6df52d0cd7cfa8397718e8f375ccd8a256ce8523cf0ad756bb15cc89c4