Analysis
- max time kernel
148s - max time network
128s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
08/09/2026, 19:28
General
- Target _bz2.dll
- Size 22KB
- Sample260908-x6t1wsgn21
- SHA256 7d2582232644a911b2fffb5d60d8c51672384050491a159d8f6d19b58fe17cc9
Score
5/10
Malware Config
Signatures
- UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Program crash 1 IoCs
- 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.
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\_bz2.dll,#11⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\_bz2.dll,#12⤵
- System Location Discovery: System Language Discovery
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5636 -s 5803⤵
- Program crash
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 5636 -ip 56361⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
memory/5636-0-0x0000000074BD0000-0x0000000074BDD000-memory.dmp
memory/5636-1-0x0000000074600000-0x0000000074BAD000-memory.dmp
memory/5636-3-0x0000000074590000-0x00000000745A4000-memory.dmp
memory/5636-2-0x00000000745B0000-0x00000000745CA000-memory.dmp
memory/5636-4-0x0000000074BD0000-0x0000000074BDD000-memory.dmp
memory/5636-8-0x0000000074600000-0x0000000074BAD000-memory.dmp