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Analysis
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max time kernel
153s -
max time network
132s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19/09/2022, 02:52
Static task
static1
Behavioral task
behavioral1
Sample
77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe
Resource
win7-20220812-en
windows7-x64
4 signatures
150 seconds
Behavioral task
behavioral2
Sample
77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
7 signatures
150 seconds
General
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Target
77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe
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Size
578KB
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MD5
9416abdcef8b803b462dee30d9150c6f
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SHA1
d2792d288c3a9c8d35ea5d6ce7b0b2770d440e07
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SHA256
77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d
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SHA512
91c4578db1ee60b1ffd799f15949d0b31922f35fe6d6360cd45980d89a917a4619d914cc725315522df6ee82ab85255a88b1c385d736a48079f6a9400ff1f8db
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SSDEEP
12288:uEce43T2C0KknAANtZwrHPZCXv+vFv24Er6eOxIwcGT65sqnmo3JV5eTSGqe+Qd5:uEceQT2094QC/+vFGtz7sqntbIOGqe+y
Score
10/10
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\twext.exe," 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\twext.exe 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe File created C:\Windows\SysWOW64\twext.exe 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4760 set thread context of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 4760 wrote to memory of 3852 4760 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 79 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5 PID 3852 wrote to memory of 620 3852 77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe 5
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:620
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C:\Users\Admin\AppData\Local\Temp\77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe"C:\Users\Admin\AppData\Local\Temp\77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4760 -
C:\Users\Admin\AppData\Local\Temp\77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe"C:\Users\Admin\AppData\Local\Temp\77cedff87f48e81c57855f163ace9f40187fc777352f521ebae9e8a09abaf87d.exe"2⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3852
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