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Analysis
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max time kernel
168s -
max time network
159s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
01/11/2023, 09:36
Behavioral task
behavioral1
Sample
1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe
Resource
win10v2004-20231023-en
General
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Target
1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe
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Size
5.5MB
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MD5
3293165b626bbef81b54d890f7e4001c
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SHA1
3aeaa87cb7c70cc244ee0e9aca07abaf65c57cd7
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SHA256
1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f
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SHA512
ca661b8923a334fb4910ebf2d4bdc8d9081f7c75024276c13d3553a81e0d9ffc8d584be4f350e60ecb348c6b5c9eee2f6e372c463149c7c874a3f02d991032af
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SSDEEP
98304:t1RJXOJgdzsOz5yG46LA6BKEKDWsb7Jx1KkmMHpA1kLBke0Q/W6nGHmt5PvNZyxC:t1RJXOJgdzsOz5yG46LA6BKEKDWsb7J3
Malware Config
Signatures
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Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\MemoryTest\ImagePath = "\\??\\C:\\MemoryTest.sys" 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe -
ACProtect 1.3x - 1.4x DLL software 3 IoCs
Detects file using ACProtect software.
resource yara_rule behavioral2/files/0x0006000000022e00-68.dat acprotect behavioral2/files/0x0006000000022e00-70.dat acprotect behavioral2/files/0x0006000000022e00-72.dat acprotect -
Loads dropped DLL 3 IoCs
pid Process 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe -
resource yara_rule behavioral2/memory/1640-14-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-17-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-20-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-19-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-18-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-16-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-22-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-24-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-26-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-30-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-28-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-32-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-35-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-37-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-39-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-41-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-43-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-45-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-47-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-49-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-51-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-53-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-55-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-57-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-59-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-61-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/memory/1640-66-0x00000000029F0000-0x0000000002A2E000-memory.dmp upx behavioral2/files/0x0006000000022e00-68.dat upx behavioral2/files/0x0006000000022e00-70.dat upx behavioral2/files/0x0006000000022e00-72.dat upx behavioral2/memory/1640-73-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-74-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-82-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-83-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-89-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-92-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-93-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-94-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-95-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-96-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-97-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-98-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-99-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-100-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-101-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-102-0x0000000005310000-0x00000000057EF000-memory.dmp upx behavioral2/memory/1640-103-0x0000000005310000-0x00000000057EF000-memory.dmp upx -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\YCGX.ini 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe -
Suspicious behavior: LoadsDriver 1 IoCs
pid Process 668 Process not Found -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe -
Suspicious use of SetWindowsHookEx 5 IoCs
pid Process 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1640 wrote to memory of 4476 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 97 PID 1640 wrote to memory of 4476 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 97 PID 1640 wrote to memory of 4476 1640 1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe"C:\Users\Admin\AppData\Local\Temp\1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe"1⤵
- Sets service image path in registry
- Loads dropped DLL
- Writes to the Master Boot Record (MBR)
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640 -
C:\Windows\SysWOW64\cacls.execacls C:\Users\Admin\AppData\Local\Temp\1a961241b3b092cc75c5ab17279757fffc4898139eb77254ee8769ab0ecd9a9f.exe /e /p administrators:n2⤵PID:4476
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
52KB
MD5fdc8b75a37017141831e3421479307be
SHA1f6a08cc570d5e5bc4218da376ca353d46d62790d
SHA2562a37ce301490bd4b7c5d02b768b054705fe4620db6ef81061718c1fe89c9f27e
SHA512d74e2de28523317c928965affa464cef6ba5c4da9ab05d30a79a4d3bbb59284d68331b5735c705cf73e155cf3a42b01ef5cd7219c72c242eed6b711090066537
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Filesize
3.4MB
MD52a6cc4731c75e9b721400d7ae9359943
SHA19f97fe6b8ccd0a9059d001cf5428993ab7bc2e9a
SHA25675414c62f7489fe3e9b99418956791596d8b068a97d79da72fc728f93a1a8da9
SHA51216ca96a4ab43ac4c952c4e03fc1673dcfe8b3e2b74c50c87c28cca82ab3918636bd911aa0bef091c64eadc9fb007910d695cd78a31727ba0fdde1efa61dcc795
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Filesize
3.4MB
MD52a6cc4731c75e9b721400d7ae9359943
SHA19f97fe6b8ccd0a9059d001cf5428993ab7bc2e9a
SHA25675414c62f7489fe3e9b99418956791596d8b068a97d79da72fc728f93a1a8da9
SHA51216ca96a4ab43ac4c952c4e03fc1673dcfe8b3e2b74c50c87c28cca82ab3918636bd911aa0bef091c64eadc9fb007910d695cd78a31727ba0fdde1efa61dcc795
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Filesize
3.4MB
MD52a6cc4731c75e9b721400d7ae9359943
SHA19f97fe6b8ccd0a9059d001cf5428993ab7bc2e9a
SHA25675414c62f7489fe3e9b99418956791596d8b068a97d79da72fc728f93a1a8da9
SHA51216ca96a4ab43ac4c952c4e03fc1673dcfe8b3e2b74c50c87c28cca82ab3918636bd911aa0bef091c64eadc9fb007910d695cd78a31727ba0fdde1efa61dcc795