Analysis
- user interaction
yes - max time kernel
148s - max time network
151s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/11/2026, 05:53
Static task
static1
Behavioral task
behavioral1
Sample
seuaniversario.js
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
seuaniversario.js
Resource
win11ltsc2024-20260911-en
General
- Target seuaniversario.js
- Size 3.4MB
- Sample261102-glpyfahv6p
- SHA256 03a797ad0aaed4eaf6ffaac64f631c5f56217d5c8ed3554d21f8c270f067818b
- MD5 07464b7d1ca1d25bb007f200b806d2f1
- SHA1 ded43fa88174998dd6fa0687aca70149a9f19e9c
- SHA512 4745c99fc9c538097f55b03bbbb8f9b8e468002c1a7d8163ea82fcbd99e907bda5b2a45f51fd525af53b71a5337853911ebc594ab43c7dde8ebee9c66058505a
- SSDEEP 49152:yh7AfjNdciMOruxFCpVKATdBSE0oTJeKw7U:cM
- TLSH T1FCF5F1C0DA660F5E360C726AAA3BCD9BC821C5865875927069FC708B379C051D4FDEBE
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Detects DonutLoader 1 IoCs
resource yara_rule behavioral2/memory/5616-12-0x00000000003B0000-0x00000000003CE000-memory.dmp family_donutloader - Creates a file in the Startup directory 1 TTPs 1 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\seuaniversario.lnk wscript.exe - Executes dropped EXE 1 IoCs
pid Process 924 cykypemm.exe - Executes a VBScript file via the Windows Script Host. 1 TTPs 1 IoCs
pid Process 2488 wscript.exe - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Executes a command shell one-liner 1 TTPs 2 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 6036 cmd.exe 2276 cmd.exe - System Location Discovery: System Language Discovery 1 TTPs 2 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 cykypemm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language iexpress.exe - System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 4 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 6036 cmd.exe 2276 cmd.exe 1972 PING.EXE 1656 PING.EXE - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{A8CDFF1C-4878-43be-B5FD-F8091C1C60D0}\Instance\ wscript.exe - Runs ping.exe 1 TTPs 2 IoCs
pid Process 1972 PING.EXE 1656 PING.EXE - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5616 iexpress.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 5732 wrote to memory of 924 5732 wscript.exe 89 PID 924 wrote to memory of 5616 924 cykypemm.exe 90 PID 924 wrote to memory of 5616 924 cykypemm.exe 90 PID 5732 wrote to memory of 2488 5732 wscript.exe 91 PID 5732 wrote to memory of 6036 5732 wscript.exe 92 PID 5732 wrote to memory of 2276 5732 wscript.exe 94 PID 6036 wrote to memory of 1972 6036 cmd.exe 96 PID 2276 wrote to memory of 1656 2276 cmd.exe 97
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\seuaniversario.js1⤵
- Creates a file in the Startup directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5732 -
C:\Users\Admin\AppData\Roaming\ProtectedData\cykypemm.exe"C:\Users\Admin\AppData\Roaming\ProtectedData\cykypemm.exe" "C:\Users\Admin\AppData\Roaming\ProtectedData\gywhlmku.au3"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:924 -
C:\Windows\SysWOW64\iexpress.exeC:\Windows\SysWOW64\iexpress.exe3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:5616
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C:\Windows\System32\wscript.exe"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\ProtectedData\mopeudpb.vbs"2⤵
- Executes a VBScript file via the Windows Script Host.
PID:2488
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c ping -n 3 127.0.0.1 >nul & del /f /q "C:\Users\Admin\AppData\Local\Temp\seuaniversario.js"2⤵
- Executes a command shell one-liner
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:6036 -
C:\Windows\system32\PING.EXEping -n 3 127.0.0.13⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1972
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c ping -n 9 127.0.0.1 >nul & rd /s /q "C:\Users\Admin\AppData\Roaming\ProtectedData"2⤵
- Executes a command shell one-liner
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2276 -
C:\Windows\system32\PING.EXEping -n 9 127.0.0.13⤵
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:1656
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C:\Windows\System32\wscript.exeC:\Windows\System32\wscript.exe1⤵PID:4520
Network
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3JavaScript
1Visual Basic
1Windows Command Shell
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\ProtectedData\cykypemm.exe
- Size 957KB
- SHA256 bdd2b7236a110b04c288380ad56e8d7909411da93eed2921301206de0cb0dda1
- MD5 279274f8a137bf31425a9c2c14444b66
- SHA1 6f7f971406854309d94139aa70bdc772308aff52
- SHA512 2e69e99ae2c2f0c3361351853ecfcd1982ea542ef8aff9314e991642f106a87d45479f21f53367ad93b29ce9d98b60706ff9554a9c9d2a793fbed1589b90a85d
- SSDEEP 24576:8SmEH7kpRArkvBz1oxovFDVeAj2HoB3a33rfBH:827kpRA4R1oGDVeQXsrf
- TLSH T11B259E0373D18022FF93A9721E5FE72656BC6D2A0323956F13D81EB9F9305B14A1E672
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ProtectedData\gywhlmku.au3
- Size 8KB
- SHA256 ecb6e3a8d13789e9a6dca89b24c3476b6fc5f8c3dd48932df2057061f78d6267
- MD5 a3be50ff28c8296a978cbc0b63e2e9a9
- SHA1 be209171e07a37ed6dd0ee6a136e47ca3daea264
- SHA512 b0f9ee7e6c39230cdbdced02c260c2b708bfca71d3a685deb479a2d5dd8048a997ce751715e153a30e17124fa9af1b823d55f58b7b33667649a220b893103ca2
- SSDEEP 96:We09ze09zIc/bVGCGIGIGIGIGIGIGIGNNMJJKv+05JFGIGVHaG5wGUrGKGsbWaUW:aMk+OVk
- TLSH T150022DC85E56BFFCDBC2C8964B4DDB4980E029AA5B3480E5E639F40C407B5BD1AC75A3
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\ProtectedData\qaqq
- Size 119KB
- SHA256 9712c0e58292342b415db7e284f5805e29c32095b1680d6de2c56e4bc63089d5
- MD5 8e9358135317160833dc39d1933d77a7
- SHA1 f0e787d77ac0430315303feae580bcbc51056776
- SHA512 75edabb98a0a84d1d6f3f543bd9248ac4788ca5e457001ad9b262f7b9798997ffa93b8c54265c6057c12434494d24aea04d022053910d700492678373f1c9bdf
- SSDEEP 3072:Xh+mPVF+3OYTKdv3B/UZzN8oodKiHvzn05rpHh:Xh+Y+xav3RUZzOxdjHb05tB
- TLSH T17DC312F1AA0E2C22BB0B0FF891A46A739D864D9A5DFE20D0EAC6181C8547716DFD9461
- MD5 SHA1 SHA512 SSDEEP TLSH