Analysis
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max time kernel
77s -
max time network
80s -
platform
windows11-21h2_x64 -
resource
win11-20240412-en -
resource tags
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submitted
25-04-2024 05:06
General
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Target
Document.doc.scr
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Size
194KB
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MD5
b7b4c97132d03eead1fa9a9352dee6c2
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SHA1
c9eb1bdc528076fa9c91668addf0723294ac1575
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SHA256
1ecea8b0bc92378bf2bdd1c14ae1628c573569419b91cc34504d2c3f8bb9f8b2
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SHA512
cb0023bc6783a94a27d2d4a67c214e8657fd334d1a94a7dba51277363dee2a67e7ecc5fc0788cead1c4e0e2dc7d9aa758203f89dce162184869d20a44d171903
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SSDEEP
3072:v6glyuxE4GsUPnliByocWepXKD0/9Wy1Og/ZK99r:v6gDBGpvEByocWehKD0/EWfg3
Malware Config
Signatures
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Renames multiple (513) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes itself 1 IoCs
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Executes dropped EXE 1 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops desktop.ini file(s) 2 IoCs
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Drops file in System32 directory 4 IoCs
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Sets desktop wallpaper using registry 2 TTPs 2 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
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Enumerates system info in registry 2 TTPs 3 IoCs
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Modifies Control Panel 2 IoCs
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Modifies registry class 5 IoCs
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Opens file in notepad (likely ransom note) 1 IoCs
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Suspicious behavior: AddClipboardFormatListener 2 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious behavior: RenamesItself 26 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of SetWindowsHookEx 14 IoCs
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Suspicious use of WriteProcessMemory 11 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\Document.doc.scr"C:\Users\Admin\AppData\Local\Temp\Document.doc.scr" /S1⤵
- Drops desktop.ini file(s)
- Sets desktop wallpaper using registry
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Modifies Control Panel
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵
- Drops file in System32 directory
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C:\ProgramData\708D.tmp"C:\ProgramData\708D.tmp"2⤵
- Deletes itself
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C DEL /F /Q C:\PROGRA~3\708D.tmp >> NUL3⤵
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc1⤵
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C:\Windows\system32\printfilterpipelinesvc.exeC:\Windows\system32\printfilterpipelinesvc.exe -Embedding1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
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C:\Program Files\Microsoft Office\root\Office16\ONENOTE.EXE/insertdoc "C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\{EED8ED41-9949-4A22-A776-CBB6F2085405}.xps" 1335849518712500002⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
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C:\Windows\system32\NOTEPAD.EXE"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\te8ZzuVLn.README.txt1⤵
- Opens file in notepad (likely ransom note)
Network
MITRE ATT&CK Matrix ATT&CK v13
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\$Recycle.Bin\S-1-5-21-801878912-692986033-442676226-1000\desktop.iniFilesize
129B
MD53bd0eedc14815075e90972106df05503
SHA1566dbcfa4c25b6c786a5101e05637c2be6b8615a
SHA2565a0ee1c9083c3ae18dc67d3f79b90539e2b3d8e3d32218bd3a28b18888d2488e
SHA512bd5c8df546969ecbf7c6efd59c872521bf397df54adf846834bcd54d840f8879510f7a5b0a79d3229728db5a1389304b8297255cfd2b51cf7a507a14a3da5f1a
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C:\ProgramData\708D.tmpFilesize
14KB
MD5294e9f64cb1642dd89229fff0592856b
SHA197b148c27f3da29ba7b18d6aee8a0db9102f47c9
SHA256917e115cc403e29b4388e0d175cbfac3e7e40ca1742299fbdb353847db2de7c2
SHA512b87d531890bf1577b9b4af41dddb2cdbbfa164cf197bd5987df3a3075983645a3acba443e289b7bfd338422978a104f55298fbfe346872de0895bde44adc89cf
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C:\Users\Admin\AppData\Local\Temp\DDDDDDDDDDDDDDDDFilesize
194KB
MD5ba3b2098a1472b06ced5c598e7540532
SHA1a88b3c656f8e1de8252229eb432611a88fb89689
SHA256edd9a9df7dcb228bd531c4fc1e4a410488113da787eba55d8119f0fde1935c77
SHA5128ec423d7171da26e23785501846853179a30f225dc259ce7a2a5107f04e4b6fd46a6c2e11550d58f6d38825861fb1233f7fe2fcd082f0420ade8e16335aeeff9
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C:\Users\Admin\AppData\Local\Temp\{4DC6F5BD-D7EE-41EB-8FC2-0227A01E42E7}Filesize
4KB
MD5fb23cd1d5705e83e7fcb010f1a5a60c4
SHA19d19c82ad975a1d4c09e4c9ba8cfe35176eb752e
SHA256337946de2b777af194e0e793399001f55513b58da4a00ea9942935e632ec5555
SHA5129b0afb1ee17099aed57e36325e51951994977adbefe20a7f01a91d43e1d2641473dfad3c5dc348df9999bf370a7ff6c1a9bbd0424df82a330a221b83ec3fe092
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C:\Users\Admin\Documents\OneNote Notebooks\My Notebook\Open Notebook.onetoc2Filesize
4KB
MD59c8b8e094d73705523a1437c4453ebf4
SHA10ef2a673260581297d097a282c5107cb1212e599
SHA256aacb535ca80aa19e25bb0bc5f74e815b060052272ade71d6f004ec640ac4211f
SHA5126e45304b8dfc3b728fc3ce0ad652381cab31ac8d2e3d8137be9ec5baac2cc71edb4ec2962d8c37ca22aa652875d65572e80ff026195d8df2c73332b5f1219a89
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C:\te8ZzuVLn.README.txtFilesize
434B
MD5ad29bd8c66e114ff57c943d16c78f72a
SHA15ab070ee89a36f38facae4dfc8ec5ce3e59af46e
SHA2566fe668fe8bf69158d1fd08e90f3cff60c1df410bf752635bf152853b6112549c
SHA512a53121e2379aa9c3bc52d073498a54f26383834f6d6636b4b3831010565c80bf0da07511907eab7bd92f9796e559958b1c0ebea4c4b0f0d869e95b7deb5da7f1
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F:\$RECYCLE.BIN\S-1-5-21-801878912-692986033-442676226-1000\DDDDDDDDDDDFilesize
129B
MD52b4cd5f1550ebf95567cb4b54312ad40
SHA150d365dcc28782ca682d3ec6c8e0b506948cc013
SHA2569bb1afab9545da956dd04cea1073f9fd7d33450685778a6a386fe4c9f76fcf77
SHA51230fadde98f1e18e5409e505a0bcca8b5518d1bb088b1eb869af750b65c89ed00129d32423edcd7136b2993156cc7f2b0058b3df1c9d58708671fd8c77836c087
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memory/2536-2766-0x00007FFDEF750000-0x00007FFDEF760000-memory.dmpFilesize
64KB
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memory/2536-2770-0x00007FFDEF750000-0x00007FFDEF760000-memory.dmpFilesize
64KB
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memory/2536-2756-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2758-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2759-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2761-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2760-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2757-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2728-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2762-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2726-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2763-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2764-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2820-0x00007FFE31C70000-0x00007FFE31D2D000-memory.dmpFilesize
756KB
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memory/2536-2767-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2765-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2768-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2724-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2769-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2771-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2772-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2773-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2774-0x00007FFE31C70000-0x00007FFE31D2D000-memory.dmpFilesize
756KB
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memory/2536-2775-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2776-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2777-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2819-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2818-0x00007FFE320A0000-0x00007FFE322A9000-memory.dmpFilesize
2.0MB
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memory/2536-2814-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2815-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2816-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/2536-2817-0x00007FFDF2130000-0x00007FFDF2140000-memory.dmpFilesize
64KB
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memory/4408-1-0x0000000002CB0000-0x0000000002CC0000-memory.dmpFilesize
64KB
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memory/4408-2-0x0000000002CB0000-0x0000000002CC0000-memory.dmpFilesize
64KB
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memory/4408-0-0x0000000002CB0000-0x0000000002CC0000-memory.dmpFilesize
64KB