Analysis
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max time kernel
118s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240419-en -
resource tags
arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system -
submitted
21-05-2024 19:17
Static task
static1
Behavioral task
behavioral1
Sample
33fc0e96135e112320c5c3d9f5ac11dcad02bdc80fe192e25f03dedf7f832c33.dll
Resource
win7-20240419-en
Behavioral task
behavioral2
Sample
33fc0e96135e112320c5c3d9f5ac11dcad02bdc80fe192e25f03dedf7f832c33.dll
Resource
win10v2004-20240508-en
General
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Target
33fc0e96135e112320c5c3d9f5ac11dcad02bdc80fe192e25f03dedf7f832c33.dll
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Size
223KB
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MD5
549a7370587023e277e18d48ba4f0bf2
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SHA1
da0d82366c10cc4b234f4d7ac956af68ab12bbab
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SHA256
33fc0e96135e112320c5c3d9f5ac11dcad02bdc80fe192e25f03dedf7f832c33
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SHA512
d5b9fac6aec0bc2f68839b44e77ae5db522dd39dfb6abc2afd6871e22cef0200a7582d5fdfe10d719be77054c738740a79cc7bd289e1232cac54f437ef9c260f
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SSDEEP
6144:ZBAUWGfVg1gufYLIBV+UdvrEFp7hKATy9:0U21guw8BjvrEH7Py9
Malware Config
Signatures
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ACProtect 1.3x - 1.4x DLL software 1 IoCs
Detects file using ACProtect software.
Processes:
resource yara_rule \Program Files\Common Files\System\symsrv.dll acprotect -
Loads dropped DLL 1 IoCs
Processes:
rundll32.exepid process 2268 rundll32.exe -
Processes:
resource yara_rule \Program Files\Common Files\System\symsrv.dll upx behavioral1/memory/2268-3-0x0000000000170000-0x00000000001A0000-memory.dmp upx behavioral1/memory/2268-4-0x0000000000170000-0x00000000001A0000-memory.dmp upx -
Drops file in Program Files directory 1 IoCs
Processes:
rundll32.exedescription ioc process File created C:\Program Files\Common Files\System\symsrv.dll rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
Processes:
rundll32.exedescription pid process target process PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe PID 1600 wrote to memory of 2268 1600 rundll32.exe rundll32.exe
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\33fc0e96135e112320c5c3d9f5ac11dcad02bdc80fe192e25f03dedf7f832c33.dll,#11⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\33fc0e96135e112320c5c3d9f5ac11dcad02bdc80fe192e25f03dedf7f832c33.dll,#12⤵
- Loads dropped DLL
- Drops file in Program Files directory
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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\Program Files\Common Files\System\symsrv.dllFilesize
67KB
MD57574cf2c64f35161ab1292e2f532aabf
SHA114ba3fa927a06224dfe587014299e834def4644f
SHA256de055a89de246e629a8694bde18af2b1605e4b9b493c7e4aef669dd67acf5085
SHA5124db19f2d8d5bc1c7bbb812d3fa9c43b80fa22140b346d2760f090b73aed8a5177edb4bddc647a6ebd5a2db8565be5a1a36a602b0d759e38540d9a584ba5896ab
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memory/2268-3-0x0000000000170000-0x00000000001A0000-memory.dmpFilesize
192KB
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memory/2268-4-0x0000000000170000-0x00000000001A0000-memory.dmpFilesize
192KB