Analysis
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max time kernel
110s -
max time network
18s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
20-10-2024 03:26
Static task
static1
Behavioral task
behavioral1
Sample
33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe
Resource
win10v2004-20241007-en
General
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Target
33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe
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Size
2.2MB
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MD5
6d8de13999ca4008e8256d3a252c6250
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SHA1
65440dc146439b0b7877f49f2f766dbdf564c4b1
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SHA256
33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206
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SHA512
816f6a429534dc7b4bc56e78be95008f8d1c28ccc237d424efb98adad8a3e7afe42694b4021df7a528412712e3fbb28a1136389f928efa75f1fbca1142133cac
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SSDEEP
24576:9jnxGj4svqaShRsUiTfjo5ya8j8bCVcPM9W4OnkSCIpUlZXUbOpz:9sj4svqaShRibza82ecXpUlZX3pz
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2520 sysx32.exe -
Loads dropped DLL 2 IoCs
pid Process 2088 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe 2088 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\sys32 = "C:\\Windows\\system32\\sysx32.exe" 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe -
Enumerates connected drives 3 TTPs 2 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\A: sysx32.exe File opened (read-only) \??\B: sysx32.exe -
Drops file in System32 directory 3 IoCs
description ioc Process File created C:\Windows\SysWOW64\sysx32.exe 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe File opened for modification C:\Windows\SysWOW64\sysx32.exe 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe File created C:\Windows\SysWOW64\sysx32.exe sysx32.exe -
Drops file in Program Files directory 2 IoCs
description ioc Process File created C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe File opened for modification C:\Program Files\7-Zip\7z.exe.tmp sysx32.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2088 wrote to memory of 2520 2088 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe 30 PID 2088 wrote to memory of 2520 2088 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe 30 PID 2088 wrote to memory of 2520 2088 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe 30 PID 2088 wrote to memory of 2520 2088 33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe"C:\Users\Admin\AppData\Local\Temp\33f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206N.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2088 -
C:\Windows\SysWOW64\sysx32.exeC:\Windows\system32\sysx32.exe /scan2⤵
- Executes dropped EXE
- Enumerates connected drives
- Drops file in System32 directory
- Drops file in Program Files directory
PID:2520
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2.2MB
MD56d8de13999ca4008e8256d3a252c6250
SHA165440dc146439b0b7877f49f2f766dbdf564c4b1
SHA25633f04ab024e7fa6671160bb21df86b055cd530705f477fa46af1c2e5fbc30206
SHA512816f6a429534dc7b4bc56e78be95008f8d1c28ccc237d424efb98adad8a3e7afe42694b4021df7a528412712e3fbb28a1136389f928efa75f1fbca1142133cac