Analysis
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max time kernel
151s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
01-12-2022 22:31
Static task
static1
Behavioral task
behavioral1
Sample
e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe
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Size
112KB
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MD5
a45ae947d33874cda1fee3658ce0ea57
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SHA1
b41ae592890d6525c87cd470575f961a54fadd83
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SHA256
e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082
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SHA512
8ff4ff65838847024aaf696f9b67494ae3e7facfad3fee4e2e46b3ace94f5d46b57cbcb19e31686c4e6c2ea09aad78c6abb7f20b43bf5b409c62916a68fd39e2
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SSDEEP
1536:EbpIUJKz2/4e/BnZlTg9L4wPMwrLHDDG3ERz4QcJ5JMK:WbO2AeJnZYMwrrLHDDG3BJMK
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" yjwuw.exe Set value (int) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe -
Executes dropped EXE 1 IoCs
pid Process 4324 yjwuw.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 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /d" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /c" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /y" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /q" e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /z" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /v" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /a" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /w" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /h" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /u" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /n" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /e" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /l" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /j" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /f" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /g" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /i" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /x" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /q" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /m" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /o" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /p" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /r" yjwuw.exe Key created \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\Run\ e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /b" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /s" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /k" yjwuw.exe Set value (str) \REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\yjwuw = "C:\\Users\\Admin\\yjwuw.exe /t" yjwuw.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 2496 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe 2496 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe 4324 yjwuw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2496 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe 4324 yjwuw.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2496 wrote to memory of 4324 2496 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe 80 PID 2496 wrote to memory of 4324 2496 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe 80 PID 2496 wrote to memory of 4324 2496 e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe 80
Processes
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C:\Users\Admin\AppData\Local\Temp\e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.exe"C:\Users\Admin\AppData\Local\Temp\e5bd27a61e1b2b8bc57f847724a7ceb455bb6c495ce7cec3d72a2874de33c082.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:2496 -
C:\Users\Admin\yjwuw.exe"C:\Users\Admin\yjwuw.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:4324
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
112KB
MD51738bcab45ae143abeb4aad2e94ce471
SHA19e3b7c76dfeb57445fccae2b37c623fe368fee56
SHA256b532dda8751864d7742dfbd93ac46d296f3be9b30c703a204199c4a05113bd1b
SHA5121da0ce901e57f8a8bdc19bdb90c8206ab904f3a074593adf9512766953ce61eff585bd00d8907765a6bda3d0129842e0184b52f7fcd91eab366b463d913fe688
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Filesize
112KB
MD51738bcab45ae143abeb4aad2e94ce471
SHA19e3b7c76dfeb57445fccae2b37c623fe368fee56
SHA256b532dda8751864d7742dfbd93ac46d296f3be9b30c703a204199c4a05113bd1b
SHA5121da0ce901e57f8a8bdc19bdb90c8206ab904f3a074593adf9512766953ce61eff585bd00d8907765a6bda3d0129842e0184b52f7fcd91eab366b463d913fe688