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Analysis
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max time kernel
260s -
max time network
336s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 22:26
Static task
static1
Behavioral task
behavioral1
Sample
84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe
Resource
win7-20221111-en
windows7-x64
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe
Resource
win10v2004-20220901-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe
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Size
88KB
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MD5
dafe4ec955e0d648e17fa6d01525fb6a
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SHA1
49e123c770cf0e4eacfe172319a12b92b4f2ba84
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SHA256
84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751
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SHA512
5c87aa3bafe06f4c707579a80c1e04bbf2552206829cc5fb96422b18f20be5a59d6915426bc7cbb4b5967022c65ab680f1526cee52427372005b3aee0655d6e0
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SSDEEP
768:utb6o5Y8InURLQ/JD60XDeVtA5YxmHwWW2iYf/ce2NZQcyVbdg5CIBT/DCwaTDNA:uNYbIQ/JDHKa5LJW6/Z2NZQIvDmNmoGp
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" 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe Set value (int) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" pkwos.exe -
Executes dropped EXE 1 IoCs
pid Process 368 pkwos.exe -
Loads dropped DLL 2 IoCs
pid Process 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /x" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /q" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /l" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /a" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /y" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /z" pkwos.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /u" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /e" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /f" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /c" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /m" 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /h" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /w" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /m" pkwos.exe Key created \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\ 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /t" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /r" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /d" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /g" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /s" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /n" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /i" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /b" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /j" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /k" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /v" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /o" pkwos.exe Set value (str) \REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\pkwos = "C:\\Users\\Admin\\pkwos.exe /p" pkwos.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 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe 368 pkwos.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 368 pkwos.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 596 wrote to memory of 368 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 27 PID 596 wrote to memory of 368 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 27 PID 596 wrote to memory of 368 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 27 PID 596 wrote to memory of 368 596 84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe 27
Processes
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C:\Users\Admin\AppData\Local\Temp\84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.exe"C:\Users\Admin\AppData\Local\Temp\84f642ee6d35e63d0dfaf2fde18282993299d5d8c09c03d7b51f9c7be83fe751.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:596 -
C:\Users\Admin\pkwos.exe"C:\Users\Admin\pkwos.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:368
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
88KB
MD5d604f679beeaf10ae78e8b2392d5542a
SHA1b5df4305adb6c8754796834f548e3f162bde7fda
SHA256bbe136a244eed101b06fbb4de37e0140c599ddca98e25f2edd42f498fa1927d0
SHA512e9c3cc583691a36a33b446bde284d8b675d6862ba15a38571c28fe2bd6c3e07cb4bc74266b554e085f715c2f4af65f6c2ba331390b86db7bce2b50c561e7da28
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Filesize
88KB
MD5d604f679beeaf10ae78e8b2392d5542a
SHA1b5df4305adb6c8754796834f548e3f162bde7fda
SHA256bbe136a244eed101b06fbb4de37e0140c599ddca98e25f2edd42f498fa1927d0
SHA512e9c3cc583691a36a33b446bde284d8b675d6862ba15a38571c28fe2bd6c3e07cb4bc74266b554e085f715c2f4af65f6c2ba331390b86db7bce2b50c561e7da28
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Filesize
88KB
MD5d604f679beeaf10ae78e8b2392d5542a
SHA1b5df4305adb6c8754796834f548e3f162bde7fda
SHA256bbe136a244eed101b06fbb4de37e0140c599ddca98e25f2edd42f498fa1927d0
SHA512e9c3cc583691a36a33b446bde284d8b675d6862ba15a38571c28fe2bd6c3e07cb4bc74266b554e085f715c2f4af65f6c2ba331390b86db7bce2b50c561e7da28
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Filesize
88KB
MD5d604f679beeaf10ae78e8b2392d5542a
SHA1b5df4305adb6c8754796834f548e3f162bde7fda
SHA256bbe136a244eed101b06fbb4de37e0140c599ddca98e25f2edd42f498fa1927d0
SHA512e9c3cc583691a36a33b446bde284d8b675d6862ba15a38571c28fe2bd6c3e07cb4bc74266b554e085f715c2f4af65f6c2ba331390b86db7bce2b50c561e7da28