Analysis
- max time kernel
149s - max time network
149s - platform
windows11-21h2_x64 - resource
win11-20260513-en - resource tags
- submitted
02/06/2026, 07:28
General
- Target tmpj63w356g.xls
- Size 144KB
- Sample260602-ja2tzaf12s
- SHA256 0408d897e1399fc4a7c9cdfb49f0847fe4adaaa9b72677e5237396f5799546db
Malware Config
Extracted
-
xlm4.0
-
xlm40.dropper
https://tlanddissipate.at/3/rbs.dll
Signatures
- Process spawned unexpected child process 1 IoCs
This typically indicates the parent process was compromised via an exploit or macro.
- Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
- Enumerates system info in registry 2 TTPs 3 IoCs
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious use of SetWindowsHookEx 41 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
Processes
-
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\tmpj63w356g.xls"1⤵
- Enumerates connected drives
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\rundll32.exe"C:\Windows\System32\rundll32.exe" lLlwqJs.dll,DllRegisterServer2⤵
- Process spawned unexpected child process
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
b8ab77100df80ab2.customDestinations-ms
memory/4520-9-0x00007FFD29500000-0x00007FFD29709000-memory.dmp
memory/4520-6-0x00007FFD29500000-0x00007FFD29709000-memory.dmp
memory/4520-4-0x00007FFCE9590000-0x00007FFCE95A0000-memory.dmp
memory/4520-5-0x00007FFD29500000-0x00007FFD29709000-memory.dmp
memory/4520-7-0x00007FFCE9590000-0x00007FFCE95A0000-memory.dmp
memory/4520-0-0x00007FFCE9590000-0x00007FFCE95A0000-memory.dmp
memory/4520-8-0x00007FFD29500000-0x00007FFD29709000-memory.dmp
memory/4520-3-0x00007FFD295A4000-0x00007FFD295A5000-memory.dmp
memory/4520-2-0x00007FFCE9590000-0x00007FFCE95A0000-memory.dmp
memory/4520-10-0x00007FFCE7370000-0x00007FFCE7380000-memory.dmp
memory/4520-11-0x00007FFCE7370000-0x00007FFCE7380000-memory.dmp
memory/4520-12-0x00007FFD29500000-0x00007FFD29709000-memory.dmp
memory/4520-1-0x00007FFCE9590000-0x00007FFCE95A0000-memory.dmp