Analysis
- max time kernel
148s - max time network
127s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
07/11/2026, 12:16
Behavioral task
behavioral1
Sample
NativeOfficeSetup.exe
Resource
win10v2004-20260911-en
6 signatures
150 seconds
General
- Target NativeOfficeSetup.exe
- Size 3.1MB
- Sample261107-pfl9csx1bs
- SHA256 a440dedda4a70649aaf15573b52867ae3bdf240ad997e4f647901c98dc49b0c6
- MD5 b1eabd27d0bd91850e0e74aaa78228d6
- SHA1 c1cec2bbb3fb559cbc59ace09f848e84a919ff50
- SHA512 0b9d3e0182c78fda7e84b14775e9d5c53862eb4921eeea8e82dc543bb208304961f759d694452ccf9c5018445b04f679956d7133022fb5bad1c90c892f0065be
- SSDEEP 49152:MuI2h7bw3AxmDVxAT37PUW+CXOW/bicMTlqlkt03agaFlBsyWf/Z4:M5O/nmDvC3TUWLOWmca03agOqyOh4
- TLSH T1FEE5F13FB28B653EE06E1A397A72E210593B766165174C569AF4C88CCF250B01E3F787
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5852 NativeOfficeSetup.tmp - Loads dropped DLL 1 IoCs
pid Process 5852 NativeOfficeSetup.tmp - 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 NativeOfficeSetup.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language NativeOfficeSetup.tmp - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/1888-0-0x0000000000390000-0x000000000047B000-memory.dmp innosetup behavioral2/memory/1888-13-0x0000000000390000-0x000000000047B000-memory.dmp innosetup - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 5852 NativeOfficeSetup.tmp - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 1888 wrote to memory of 5852 1888 NativeOfficeSetup.exe 88
Processes
-
C:\Users\Admin\AppData\Local\Temp\NativeOfficeSetup.exe"C:\Users\Admin\AppData\Local\Temp\NativeOfficeSetup.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1888 -
C:\Users\Admin\AppData\Local\Temp\is-6S1Q5G87J7.tmp\NativeOfficeSetup.tmp"C:\Users\Admin\AppData\Local\Temp\is-6S1Q5G87J7.tmp\NativeOfficeSetup.tmp" /SL5="$400B2,1273809,904704,C:\Users\Admin\AppData\Local\Temp\NativeOfficeSetup.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
PID:5852
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-6S1Q5G87J7.tmp\NativeOfficeSetup.tmp
- Size 4.8MB
- SHA256 1184ba320858419a504550e65a3bbee78fc3eb21f2b0fce16904a5206ef19b79
- MD5 22ecdf6cdbec60db0b2e1cc2b9634880
- SHA1 89d4aa716f2d7da8b7acbf545a0ca9afb35d766a
- SHA512 32af061312e4f78e4f4370c8873ed09fa6a0552a23fac787fe3484e91549d6cb9ac023ae4811866cbb532ec74f026163a3c8452dcbf6c655a9ee6416e68dc7a1
- SSDEEP 98304:LvdHRh7Vhv2Wn+FYGa7xP2gRQJhsm+333p:xHLn+eHNt0C
- TLSH T10B369E23B384A53EE4671E3A687FA649583F7A203A168D476BF40D5C4F396402D3B787
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-XAWQGYW044.tmp\_isetup\_is7z.dll
- Size 971KB
- SHA256 f97cda058bfe97a7e9ced5cde7018bbc26e35155c3c7405c6146808f8d06806d
- MD5 e61d992e2fdcce91e7cefc7f2b4e25ba
- SHA1 d3331673e9f0e8bdd6f44774c46f2ba69b94aee6
- SHA512 b2213c1b15000fdbb6e5b4e00c916633237397de34799651193c046937b0e01ceb31d8c42c4ce6d63aabd34ce54574f250837e9aecc58d1505943543292e7655
- SSDEEP 24576:Vu7+5bgfJ9DpAuwNrpH3XysiHAwor7XVq:wAI3wNKHAzrE
- TLSH T10F25AE12B7EEC1F8CA4E15305A3DAB59167DA39807108ADBA3D02E9E7F309D2D735E05
- MD5 SHA1 SHA512 SSDEEP TLSH