Analysis
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max time kernel
143s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
08/06/2023, 12:32
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe
Resource
win10v2004-20230220-en
8 signatures
150 seconds
General
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Target
4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe
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Size
543KB
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MD5
65a9e50219af72cf20bd07f11f16bf94
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SHA1
20df1309744a917b1fd8f76bfc85e43d0beffeb8
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SHA256
4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578
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SHA512
a8883a85f86325a496bf2f77c69785074adba8383b6faad8e21277e4a47b93c0b94ea0f36a6b807b8a318c6ed804b6d5d740d8ebec071138a2c3d22b9d8e3cf9
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SSDEEP
6144:hFAAC7/XPUqDOl8EEEEw+CCbFXF/F+AYAjVkwU7wbSfNf0J/qlIGl3tUSSwbWzvr:hFdyXPUqa2xxhUA2wU7wW1tIK5mvp
Score
10/10
Malware Config
Signatures
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Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 3032 created 3212 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 19 -
Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook certreq.exe Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook certreq.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4568 3032 WerFault.exe 84 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0 certreq.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString certreq.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 1124 certreq.exe 1124 certreq.exe 1124 certreq.exe 1124 certreq.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3032 wrote to memory of 1124 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 88 PID 3032 wrote to memory of 1124 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 88 PID 3032 wrote to memory of 1124 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 88 PID 3032 wrote to memory of 1124 3032 4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe 88 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook certreq.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1013461898-3711306144-4198452673-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook certreq.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3212
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C:\Users\Admin\AppData\Local\Temp\4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe"C:\Users\Admin\AppData\Local\Temp\4c18e4450f968520a7eff7754d5a727e493f66943a0a69b2545596ace09e6578.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3032 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 9123⤵
- Program crash
PID:4568
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C:\Windows\system32\certreq.exe"C:\Windows\system32\certreq.exe"2⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- outlook_office_path
- outlook_win_path
PID:1124
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 3032 -ip 30321⤵PID:4936