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Analysis
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max time kernel
153s -
max time network
179s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
01/12/2022, 09:51
Static task
static1
Behavioral task
behavioral1
Sample
cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe
Resource
win10v2004-20221111-en
General
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Target
cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe
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Size
24KB
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MD5
19c36fa9ac17cc2a4fec523f22de4755
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SHA1
75aefe73cc7a1fd395923f170ec9f2aaa4bdc3ad
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SHA256
cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db
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SHA512
5541b9d52e053f750580b41f56f21d9b0b7d48f1dd26a2b834cceba26dc608e90fa5e6dd1f47a71dd87495b23538d0d8f62761c867502e85f37bf5f955c82429
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SSDEEP
384:E8cfUpPyIEaEMTMy36nxRUe5z2EE2wsmv9TOEoi8E+nxSruBl/ZVq4Sx9J:E8cfUpPyIEQQy3Be1E+mvNOEpI8rW/H8
Malware Config
Signatures
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Drops file in System32 directory 3 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\amurpm.dll cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe File opened for modification C:\Windows\SysWOW64\userinit.exe cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe File opened for modification C:\Windows\SysWOW64\ntxeed.dll cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4816 set thread context of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 -
Program crash 1 IoCs
pid pid_target Process procid_target 1020 4964 WerFault.exe 83 -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83 PID 4816 wrote to memory of 4964 4816 cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe"C:\Users\Admin\AppData\Local\Temp\cf8885b4328f6d5598bfb676c334589bac3ffa045a522cd8b3be8a9af0b9b1db.exe"1⤵
- Drops file in System32 directory
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Windows\SysWOW64\rundll32.exeC:\Windows\system32\rundll32.exe2⤵PID:4964
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 123⤵
- Program crash
PID:1020
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4964 -ip 49641⤵PID:3428