Analysis
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max time kernel
149s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
14-03-2024 22:24
Static task
static1
Behavioral task
behavioral1
Sample
a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe
Resource
win7-20240215-en
Behavioral task
behavioral2
Sample
a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe
Resource
win10v2004-20240226-en
General
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Target
a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe
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Size
23KB
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MD5
412b26862fec567f8090b81d187004e4
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SHA1
174d24f55e58cd52e622316764cd3108de284fcb
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SHA256
a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b
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SHA512
f28b1bb2c874d169557c988a92dc639a14c388de38af984147f93ca077d2252fde0e6df3951d31365cff1da999593c9fd5906a40d3b219a28f1b24e8d56df861
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SSDEEP
384:KICKqPF/EkecA6C1VqahohtgVRNVdoV7TtRu8rM/dWwYVFl2g5coW58dO0xXHV2X:7qPJtecA6C1VqahohtgVRNToV7TtRu8e
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 2468 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2468 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-399997616-3400990511-967324271-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3896 wrote to memory of 2468 3896 a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe 87 PID 3896 wrote to memory of 2468 3896 a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe 87 PID 3896 wrote to memory of 2468 3896 a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe"C:\Users\Admin\AppData\Local\Temp\a8d3c7b85b5a27037776e265ba729c7070b74d46c76fdc609db8bdaf190cce1b.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:3896 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
PID:2468
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
23KB
MD560595d7e5c61e9b5611f0909ade45efa
SHA1813baafc2d902f86c2d023c35b486155f71cf5b5
SHA25600be108aecb11a92abc94d48291dac162c6c56125e4842ca3c68c88ba7059c63
SHA51205909aeec784237ff382ab956d01eccfc77ebe566f4a9f3e915551ed395e8fe0fbff10caeb63ff7adf4b50e481f9e465f35c540a76f34ce0f3c902f76b8ad3c6