Analysis
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max time kernel
147s -
max time network
123s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
20/02/2025, 14:22
General
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Target
KayZer.exe
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Size
6.0MB
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MD5
7988a817d0491d1cd117c2557a984697
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SHA1
d8d5581e2480ea04a7840bc787981ab52a7e81ae
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SHA256
3689a3d591ab4d7a7861ba1445aba8707da08011e01d34828858ffecbe775f49
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SHA512
dc429315e8138dd5fcf44b136b1f6ebd5865f563cb15a24ce41ecd37620dcf23c12cc7901ffa8ca4f21848bb052ec9c1919149383c8778cb6dbbdd3714e0a158
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SSDEEP
98304:Bn0yk8bSv0M9j7ktyYxyLmu5LLGXdof+AHRk8A+OTLpyX92jxDwpsGVjI24:Wj9jYp3N8+AvOsAjGpsmjI2
Malware Config
Signatures
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ElysiumStealer
ElysiumStealer (previously known as ZeromaxStealer) is an info stealer that can steal login credentials for various accounts.
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ElysiumStealer Support DLL 1 IoCs
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Elysiumstealer family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Loads dropped DLL 1 IoCs
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Themida packer 2 IoCs
Detects Themida, an advanced Windows software protection system.
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Checks whether UAC is enabled 1 TTPs 1 IoCs
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
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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.
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Enumerates system info in registry 2 TTPs 3 IoCs
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Modifies system certificate store 2 TTPs 2 IoCs
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Suspicious behavior: EnumeratesProcesses 50 IoCs
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Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\KayZer.exe"C:\Users\Admin\AppData\Local\Temp\KayZer.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Maps connected drives based on registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Enumerates system info in registry
- Modifies system certificate store
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Modify Registry
1Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
40KB
MD594173de2e35aa8d621fc1c4f54b2a082
SHA1fbb2266ee47f88462560f0370edb329554cd5869
SHA2567e2c70b7732fb1a9a61d7ce3d7290bc7b31ea28cbfb1dbc79d377835615b941f
SHA512cadbf4db0417283a02febbabd337bf17b254a6eb6e771f8a553a140dd2b04efd0672b1f3175c044a3edd0a911ce59d6695f765555262560925f3159bb8f3b798
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
12.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
12.1MB
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Filesize
12.1MB
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Filesize
1.1MB
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Filesize
48KB
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Filesize
1.1MB
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Filesize
4KB
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Filesize
1.1MB
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Filesize
2.1MB
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Filesize
12.1MB
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Filesize
1.1MB
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Filesize
4KB
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Filesize
1.1MB
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Filesize
1.1MB
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Filesize
1.1MB