Analysis
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max time kernel
152s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
20/10/2022, 06:31
Behavioral task
behavioral1
Sample
c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8.dll
Resource
win7-20220901-en
windows7-x64
7 signatures
150 seconds
Behavioral task
behavioral2
Sample
c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8.dll
Resource
win10v2004-20220812-en
windows10-2004-x64
8 signatures
150 seconds
General
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Target
c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8.dll
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Size
36KB
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MD5
728f41a607312a9f97f23acbda0e739b
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SHA1
55db1562bd60e87111b6d77663d265a8ba0c012f
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SHA256
c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8
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SHA512
17c16c204b8ca3d5ad4e4a7bba606e036c3e7758c3f85f13930586c5aac31798f5d07c351ae94be915a7b4cdd7bf1f8d3d77a368958f9c8edfb28fd60340fdbe
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SSDEEP
768:FJknmkhqRyryjM9ny0nmgkaZHrvkXl8Y9h/nTvueHb2pVnbcuyD7UECd:F3kAY/nmoZH4XF9h/TT72pVnouy8jd
Score
9/10
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral1/files/0x000500000000b2d2-59.dat acprotect -
resource yara_rule behavioral1/memory/1812-56-0x0000000010000000-0x0000000010021000-memory.dmp upx behavioral1/files/0x000500000000b2d2-59.dat upx behavioral1/memory/896-60-0x0000000010000000-0x0000000010021000-memory.dmp upx behavioral1/memory/1812-61-0x0000000010000000-0x0000000010021000-memory.dmp upx behavioral1/memory/896-62-0x0000000010000000-0x0000000010021000-memory.dmp upx -
Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\msisse.dll rundll32.exe File opened for modification C:\Windows\msisse.dll rundll32.exe -
Modifies registry class 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6} rundll32.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{7B3AC3FA-B695-41b6-BAA0-860EB5EB6FD6}\{F69EB73C-700A-42c9-8F9D-E8C4ABC27EF3} = "c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8.dll,1313243789,1925935503,-1814625877" rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9}\InProcServer32 rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID rundll32.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{fbeb8a05-beee-4442-804e-409d6c4515e9} rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe 896 rundll32.exe -
Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1600 wrote to memory of 1812 1600 rundll32.exe 27 PID 1812 wrote to memory of 896 1812 rundll32.exe 28 PID 1812 wrote to memory of 896 1812 rundll32.exe 28 PID 1812 wrote to memory of 896 1812 rundll32.exe 28 PID 1812 wrote to memory of 896 1812 rundll32.exe 28 PID 1812 wrote to memory of 896 1812 rundll32.exe 28 PID 1812 wrote to memory of 896 1812 rundll32.exe 28 PID 1812 wrote to memory of 896 1812 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8.dll,#12⤵
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1812 -
C:\Windows\SysWOW64\rundll32.exerundll32 "C:\Windows\msisse.dll",_RunAs@163⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:896
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Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
36KB
MD5728f41a607312a9f97f23acbda0e739b
SHA155db1562bd60e87111b6d77663d265a8ba0c012f
SHA256c4f7bfba05ac4ac900ae38a6a60d5d0b4f6d568250216050ceae1d99c220c2b8
SHA51217c16c204b8ca3d5ad4e4a7bba606e036c3e7758c3f85f13930586c5aac31798f5d07c351ae94be915a7b4cdd7bf1f8d3d77a368958f9c8edfb28fd60340fdbe