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Analysis
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max time kernel
147s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
26/12/2023, 15:14
Static task
static1
Behavioral task
behavioral1
Sample
783d8d30e61b21ca2ef35394a7dff511.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
783d8d30e61b21ca2ef35394a7dff511.exe
Resource
win10v2004-20231222-en
General
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Target
783d8d30e61b21ca2ef35394a7dff511.exe
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Size
236KB
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MD5
783d8d30e61b21ca2ef35394a7dff511
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SHA1
166ff22ff0619b4c53c7e48e5f2dcb9a03babfdf
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SHA256
06dfe87945cc3b82d784f473d10f6608e592c5eac5305634837eeae7b3dea192
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SHA512
ee1a081305b3fef79a9d24922b13d54e72ecec5337c438f682a46642531d7e1a8d1ef4982233be3d1242c7baa1c1b4e4728907e513efc5fa2a7bda30f98bb2af
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SSDEEP
3072:06VlhsJ0osvyMZeIT51B8u0gWCyiHCUPqga:GSouyMwItf8u0gWCyiHC
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-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 783d8d30e61b21ca2ef35394a7dff511.exe Set value (int) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" ciiayab.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-1-5-21-3803511929-1339359695-2191195476-1000\Control Panel\International\Geo\Nation 783d8d30e61b21ca2ef35394a7dff511.exe -
Executes dropped EXE 1 IoCs
pid Process 1624 ciiayab.exe -
Adds Run key to start application 2 TTPs 27 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /t" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /b" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /f" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /z" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /c" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /r" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /u" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /j" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /a" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /i" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /n" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /v" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /s" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /w" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /k" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /y" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /g" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /m" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /x" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /s" 783d8d30e61b21ca2ef35394a7dff511.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /l" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /d" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /o" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /p" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /q" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /e" ciiayab.exe Set value (str) \REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ciiayab = "C:\\Users\\Admin\\ciiayab.exe /h" ciiayab.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 216 783d8d30e61b21ca2ef35394a7dff511.exe 216 783d8d30e61b21ca2ef35394a7dff511.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe 1624 ciiayab.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 216 783d8d30e61b21ca2ef35394a7dff511.exe 1624 ciiayab.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 216 wrote to memory of 1624 216 783d8d30e61b21ca2ef35394a7dff511.exe 88 PID 216 wrote to memory of 1624 216 783d8d30e61b21ca2ef35394a7dff511.exe 88 PID 216 wrote to memory of 1624 216 783d8d30e61b21ca2ef35394a7dff511.exe 88
Processes
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C:\Users\Admin\AppData\Local\Temp\783d8d30e61b21ca2ef35394a7dff511.exe"C:\Users\Admin\AppData\Local\Temp\783d8d30e61b21ca2ef35394a7dff511.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:216 -
C:\Users\Admin\ciiayab.exe"C:\Users\Admin\ciiayab.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:1624
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
236KB
MD5cbe2fe3f5aed0d52e7db857325142417
SHA12c629f2c6a3eba7303ae7ca59f0e7a4c6a2de704
SHA256e152da508e541d8f4e7864f4e33b4685adbbb73012e01c0c6dfcbfb278043abb
SHA512040fb5f77dbc8d688d4bbebb1db17a45edaee3f132720a9a742d1f79846e2e1290148bfa6ae6e29364d2fb016e3c90b1dd17654cefb8833e525b56dbd1cf4ca2