Analysis
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max time kernel
160s -
max time network
62s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
21-11-2022 14:36
Static task
static1
Behavioral task
behavioral1
Sample
1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe
Resource
win10v2004-20221111-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe
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Size
312KB
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MD5
1ab269da4df02c3507e1880eca10b734
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SHA1
3545098309f34b2972e01b8ea3be7b2e70dde2d3
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SHA256
1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2
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SHA512
225205a2eb5412aeba190a4d706473f8aae47b417bf3b282dd1590f2c337f3fdf1171eecd93517ab46e637a97badd19249788c7d1239bf1f8c0e83bf8435807e
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SSDEEP
6144:pZXeP2DxXgYIlqAnIVDC8e5uMSXGJZPBP3Jm90GFh:CAxXgYMNIVa5uM1D/U0sh
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-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" cauaf.exe -
Executes dropped EXE 1 IoCs
pid Process 576 cauaf.exe -
Loads dropped DLL 2 IoCs
pid Process 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe -
Adds Run key to start application 2 TTPs 50 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /r" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /t" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /O" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /B" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /Y" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /d" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /s" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /o" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /u" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /V" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /n" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /i" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /N" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /W" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /A" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /R" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /D" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /F" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /Q" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /v" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /w" cauaf.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /j" 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /l" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /G" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /T" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /b" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /j" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /C" cauaf.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /x" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /p" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /y" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /f" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /S" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /M" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /P" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /g" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /a" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /k" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /U" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /e" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /Z" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /J" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /q" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /X" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /I" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /c" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /z" cauaf.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\cauaf = "C:\\Users\\Admin\\cauaf.exe /K" cauaf.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 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe 576 cauaf.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 576 cauaf.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 968 wrote to memory of 576 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 28 PID 968 wrote to memory of 576 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 28 PID 968 wrote to memory of 576 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 28 PID 968 wrote to memory of 576 968 1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.exe"C:\Users\Admin\AppData\Local\Temp\1cb10ec7beb58469dfa68eee1bf959ab7630ea7d8fd894764186d150cd4e6bf2.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:968 -
C:\Users\Admin\cauaf.exe"C:\Users\Admin\cauaf.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:576
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
312KB
MD525d6597ac11b5c88c83895b1be6ab241
SHA1bd7fcb725cefcc01c887682416a4ef375bfd541d
SHA25662fb01515d22b1bbf412fa7566258625c5288b1ca6732f06290731e55722df2b
SHA512c26d622ea6eef4a375b2fedaa91ae3629c3b4a67afea3c5970c86f5a00e867819ee9df1d82b01a82c780da89c2115df5eb19406431bf0e60ebfbaca341c26071
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Filesize
312KB
MD525d6597ac11b5c88c83895b1be6ab241
SHA1bd7fcb725cefcc01c887682416a4ef375bfd541d
SHA25662fb01515d22b1bbf412fa7566258625c5288b1ca6732f06290731e55722df2b
SHA512c26d622ea6eef4a375b2fedaa91ae3629c3b4a67afea3c5970c86f5a00e867819ee9df1d82b01a82c780da89c2115df5eb19406431bf0e60ebfbaca341c26071
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Filesize
312KB
MD525d6597ac11b5c88c83895b1be6ab241
SHA1bd7fcb725cefcc01c887682416a4ef375bfd541d
SHA25662fb01515d22b1bbf412fa7566258625c5288b1ca6732f06290731e55722df2b
SHA512c26d622ea6eef4a375b2fedaa91ae3629c3b4a67afea3c5970c86f5a00e867819ee9df1d82b01a82c780da89c2115df5eb19406431bf0e60ebfbaca341c26071
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Filesize
312KB
MD525d6597ac11b5c88c83895b1be6ab241
SHA1bd7fcb725cefcc01c887682416a4ef375bfd541d
SHA25662fb01515d22b1bbf412fa7566258625c5288b1ca6732f06290731e55722df2b
SHA512c26d622ea6eef4a375b2fedaa91ae3629c3b4a67afea3c5970c86f5a00e867819ee9df1d82b01a82c780da89c2115df5eb19406431bf0e60ebfbaca341c26071