Analysis
- user interaction
yes - max time kernel
58s - max time network
60s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260130-en - resource tags
arch:x64arch:x86image:win10ltsc2021-20260130-enlocale:en-usos:windows10-ltsc_2021-x64systemwindows - submitted
06/05/2026, 15:25
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Launcher.cmd
Resource
win10ltsc2021-20260130-en
4 signatures
60 seconds
General
- Target Launcher.cmd
- Size 28B
- Sample260506-stsvvahx9r
- SHA256 ce1e33483d353200a266b3bc383ccf500e5a760c6dcd8218747260f5bbe39509
- MD5 fc3979a7ae6f3b0d64986c93b7911991
- SHA1 ab9685d1f483f40a5bd995173519a12473fa450f
- SHA512 83978961a0c623e9b98a300e0442a55c1796cea0bfd9085c0ba7f9ef1e9be6fd72585403783110e0b1f53bab70cd7038410cee0b84dca7eaa38884a08a441f77
- MD5 SHA1 SHA512
Score
6/10
Malware Config
Signatures
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 5 ip-api.com - Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\Panther\UnattendGC\setuperr.log UserOOBEBroker.exe File opened for modification C:\Windows\Panther\UnattendGC\diagerr.xml UserOOBEBroker.exe File opened for modification C:\Windows\Panther\UnattendGC\diagwrn.xml UserOOBEBroker.exe File opened for modification C:\Windows\Panther\UnattendGC\setupact.log UserOOBEBroker.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 FileCoAuth.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language FileCoAuth.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 3900 wrote to memory of 4748 3900 cmd.exe 83
Processes
-
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\Launcher.cmd"1⤵
- Suspicious use of WriteProcessMemory
PID:3900 -
C:\Users\Admin\AppData\Local\Temp\luajit.exeluajit.exe uix.txt2⤵PID:4748
-
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C:\Windows\System32\oobe\UserOOBEBroker.exeC:\Windows\System32\oobe\UserOOBEBroker.exe -Embedding1⤵
- Drops file in Windows directory
PID:4484
-
C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exeC:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding1⤵
- System Location Discovery: System Language Discovery
PID:4356
-
C:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exeC:\Users\Admin\AppData\Local\Microsoft\OneDrive\18.151.0729.0013\FileCoAuth.exe -Embedding1⤵
- System Location Discovery: System Language Discovery
PID:2596
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DevicesFlow -s DevicesFlowUserSvc1⤵PID:528
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DevicesFlow -s DevicePickerUserSvc1⤵PID:3444
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DevicesFlow -s DevicesFlowUserSvc1⤵PID:972
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k DevicesFlow -s DevicesFlowUserSvc1⤵PID:544
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:5288
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\OneDrive\logs\Common\FileCoAuth-2026-5-6.1525.4356.1.odl
- Size 706B
- SHA256 992d50ec2397a9954bf775f4ecd81cd53fbd3c85e2271ff445e471bfe929f2ad
- MD5 d8598440eef29f5cc8e4a4626c461500
- SHA1 3d0b5ba1ae6c0c15997b45915ffa24156a7a3e4a
- SHA512 48285f7e433df9c30f1f44b48af9b952613ae7a4e50308d3ebcfd11bc51c399e4dddbd03b2b4abc5f95052844a0e7009dacb5872ddd9c856366418c50e9eefcf
- TLSH T19A01E96AFD5758B9CE3501BCC80DB3090D46A9627E4E6022E6850795C60FA90110FEB5
- MD5 SHA1 SHA512 TLSH