Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05/08/2024, 22:44
Behavioral task
behavioral1
Sample
6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe
Resource
win10v2004-20240802-en
General
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Target
6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe
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Size
135KB
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MD5
4be714e637dfca2ed36a809f852f655a
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SHA1
72e695c78aea9ce7a2c558d3b9cf9ae639cf992d
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SHA256
6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846
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SHA512
5248ac21cf10e1f08ff52d4ba422a69f2f23be82a54bb6b006392389293e652a96607e1cae46ea954d6ab51d1b662d01ac7e0c4b50852d23d398f7b8853bb109
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SSDEEP
1536:YGYU/W2/HG6QMauSV3ixJHABLrmhH7i9eNOOg00GqMIK7aGZh3SOS:YfU/WF6QMauSuiWNi9eNOl0007NZIOS
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe -
Executes dropped EXE 1 IoCs
pid Process 732 wuauclt.exe -
resource yara_rule behavioral2/memory/4608-0-0x00000000006C0000-0x00000000006E8000-memory.dmp upx behavioral2/files/0x000800000002341b-3.dat upx behavioral2/memory/732-5-0x0000000000060000-0x0000000000088000-memory.dmp upx behavioral2/memory/4608-6-0x00000000006C0000-0x00000000006E8000-memory.dmp upx behavioral2/memory/732-7-0x0000000000060000-0x0000000000088000-memory.dmp upx behavioral2/memory/4608-8-0x00000000006C0000-0x00000000006E8000-memory.dmp upx -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Window Update = "\"C:\\ProgramData\\Update\\wuauclt.exe\" /run" 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe -
Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language wuauclt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4608 wrote to memory of 732 4608 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe 83 PID 4608 wrote to memory of 732 4608 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe 83 PID 4608 wrote to memory of 732 4608 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe 83 PID 4608 wrote to memory of 4488 4608 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe 89 PID 4608 wrote to memory of 4488 4608 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe 89 PID 4608 wrote to memory of 4488 4608 6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe"C:\Users\Admin\AppData\Local\Temp\6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4608 -
C:\ProgramData\Update\wuauclt.exe"C:\ProgramData\Update\wuauclt.exe" /run2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:732
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C:\windows\SysWOW64\cmd.exe"C:\windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6d289439ef23f3307f7678ccf8b0ec6fcc4424b43402a86fd3832a81cefc5846.exe" >> NUL2⤵
- System Location Discovery: System Language Discovery
PID:4488
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
135KB
MD5c8e64212347857dd4bf34c079e069b64
SHA1b8153217200c5f2160ebb9ecc924339242ce7ec7
SHA256985a530b719ca0788a964499cc34206aeecb710a61537af7ec5b193e2b64078b
SHA5124fa58e70b8fc98a73be11e644bb9d21d5161b6b69dda07f0ffef0ba47a7f4a463083dc7672846ef9997ea0abe43130915f59d8717bb3dbf75d4367d71b1eae55