Analysis
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max time kernel
150s -
max time network
145s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
02-12-2022 00:10
Static task
static1
Behavioral task
behavioral1
Sample
b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe
Resource
win7-20220812-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe
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Size
192KB
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MD5
67b2b6cce293a771abb7ae7e34961d90
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SHA1
aa30a055d122db851759d4a91996c2ee0b29e11c
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SHA256
b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a
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SHA512
0897f10d4a042bd5b7547c076acc26c68086f3ba02efac800a8c4a74dc352a2c6d5408d5a7330c2b07be535b54da77c59a106dad15f57fb87e3c01e0202b9b29
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SSDEEP
3072:mwBJObh+RH5UL1iUG3KgKLKRKoVqR5VxerayK/fObT/bGicFgvXb6jGJBXX:mwBJ8cRZSgKgKLKRKoVqRTxEpK/fObTR
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-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" kexug.exe -
Executes dropped EXE 1 IoCs
pid Process 64 kexug.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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe -
Adds Run key to start application 2 TTPs 54 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /p" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /k" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /f" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /c" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /N" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /x" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /u" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /a" b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /e" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /O" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /A" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /P" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /d" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /X" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /U" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /n" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /R" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /E" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /v" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /w" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /T" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /t" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /K" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /h" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /C" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /Z" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /Q" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /D" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /b" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /L" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /a" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /I" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /o" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /r" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /g" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /S" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /G" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /q" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /i" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /l" kexug.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /V" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /H" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /F" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /m" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /M" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /B" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /y" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /J" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /z" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /Y" kexug.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /W" kexug.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kexug = "C:\\Users\\Admin\\kexug.exe /s" kexug.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 2016 b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe 2016 b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe 64 kexug.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2016 b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe 64 kexug.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2016 wrote to memory of 64 2016 b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe 83 PID 2016 wrote to memory of 64 2016 b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe 83 PID 2016 wrote to memory of 64 2016 b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.exe"C:\Users\Admin\AppData\Local\Temp\b6ff7c624cfb67c94be3e75975b10c51fdb669139cde1ed2967909942304c24a.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:2016 -
C:\Users\Admin\kexug.exe"C:\Users\Admin\kexug.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:64
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
192KB
MD5f7db241b131527ddffd0f29a6406d294
SHA10bad473bbe51e0b5008e3f16d0e173dfeaaaa635
SHA25643a75db4ce2a1ba36d30a64ba6f78f7f0185af2216aa64b9af8070d85845d03f
SHA5129770fab2609d5468875ec5ffb47a972ca1de6d11a88b6502d34ea19867062dca527a5167b23d7ff54aa10f166e3e08fc729f7bffbd680dbc6b28dc1c506d94c9
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Filesize
192KB
MD5f7db241b131527ddffd0f29a6406d294
SHA10bad473bbe51e0b5008e3f16d0e173dfeaaaa635
SHA25643a75db4ce2a1ba36d30a64ba6f78f7f0185af2216aa64b9af8070d85845d03f
SHA5129770fab2609d5468875ec5ffb47a972ca1de6d11a88b6502d34ea19867062dca527a5167b23d7ff54aa10f166e3e08fc729f7bffbd680dbc6b28dc1c506d94c9