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Analysis
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max time kernel
151s -
max time network
156s -
platform
windows7_x64 -
resource
win7-20230831-en -
resource tags
arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system -
submitted
14/10/2023, 02:28
Static task
static1
Behavioral task
behavioral1
Sample
MicrotrendAudio.exe
Resource
win7-20230831-en
windows7-x64
Behavioral task
behavioral2
Sample
MicrotrendAudio.exe
Resource
win10v2004-20230915-en
windows10-2004-x64
Behavioral task
behavioral3
Sample
b5tnf9h4zy.dll
Resource
win7-20230831-en
windows7-x64
Behavioral task
behavioral4
Sample
b5tnf9h4zy.dll
Resource
win10v2004-20230915-en
windows10-2004-x64
General
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Target
b5tnf9h4zy.dll
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Size
1.0MB
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MD5
2a080cf8e2641c8b0e93813a15c3e8b4
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SHA1
e53bb39f38831e0a441dcc8cfc6f7987db583c3e
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SHA256
92aedf0828d08c5c2991e29a17b4c11f4e61473caabd55e6e8af52c719a00441
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SHA512
5df1a311bf1ff7152238951025162fb230051d6fc2e334611dea379445c2cac6024ae44750a370a7561d1c973390ebdb897471b6ed8e998f5a1954a6663ea505
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SSDEEP
12288:TdJpqfY1+UhD0PO/QoyT41Eg1ajNPeMAdbaOW1PQTBv/IPKk/EQ93oK+jYANZ+kZ:XI1P6WQhIeM
Malware Config
Signatures
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Blocklisted process makes network request 2 IoCs
flow pid Process 6 1192 rundll32.exe 7 1192 rundll32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe 1192 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1192 rundll32.exe -
Suspicious use of WriteProcessMemory 7 IoCs
description pid Process procid_target PID 1732 wrote to memory of 1192 1732 rundll32.exe 28 PID 1732 wrote to memory of 1192 1732 rundll32.exe 28 PID 1732 wrote to memory of 1192 1732 rundll32.exe 28 PID 1732 wrote to memory of 1192 1732 rundll32.exe 28 PID 1732 wrote to memory of 1192 1732 rundll32.exe 28 PID 1732 wrote to memory of 1192 1732 rundll32.exe 28 PID 1732 wrote to memory of 1192 1732 rundll32.exe 28
Processes
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C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b5tnf9h4zy.dll,#11⤵
- Suspicious use of WriteProcessMemory
PID:1732 -
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\b5tnf9h4zy.dll,#12⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1192
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