Analysis
- max time kernel
150s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20260513-en - resource tags
arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
08/08/2026, 18:23
Behavioral task
behavioral1
Sample
file_b51b4703e727923f.exe
Resource
win10v2004-20260513-en
5 signatures
150 seconds
General
- Target file_b51b4703e727923f.exe
- Size 13.8MB
- Sample260808-w1etcabr41
- SHA256 70f325d51562943e2c6e2cbbf0b71e9901908ab16dad8fe09222978e02104201
- MD5 6059c2421b01d291e644b387c85add46
- SHA1 0a5769baafec6891f7d7411f768bb81445c86942
- SHA512 40bf07e9b8202e44ab6a205e150ab8e011e479d61c154847798808183fcbf0c5c805980313eef2c779b31f74448520b7c6d8d4e4646ad742fa622442f75ce115
- SSDEEP 49152:YAX7NCZgk4Qkz0Oes4G7eGlf3JAMma01gSuxkdqVfa2b+mvs46Q:YAX7tk0z0OAmFlxAMmLuLkiff+mEB
- TLSH T153E6F13BB28AB93DE02A6B359972D16054377E15AC134E1B86E0385CEF359E03D3B746
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 4232 file_b51b4703e727923f.tmp - Loads dropped DLL 1 IoCs
pid Process 4232 file_b51b4703e727923f.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 file_b51b4703e727923f.tmp Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language file_b51b4703e727923f.exe - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral1/memory/5032-0-0x0000000000350000-0x0000000000433000-memory.dmp innosetup behavioral1/memory/5032-10-0x0000000000350000-0x0000000000433000-memory.dmp innosetup - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5032 wrote to memory of 4232 5032 file_b51b4703e727923f.exe 85
Processes
-
C:\Users\Admin\AppData\Local\Temp\file_b51b4703e727923f.exe"C:\Users\Admin\AppData\Local\Temp\file_b51b4703e727923f.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5032 -
C:\Users\Admin\AppData\Local\Temp\is-2SSGQ56S0R.tmp\file_b51b4703e727923f.tmp"C:\Users\Admin\AppData\Local\Temp\is-2SSGQ56S0R.tmp\file_b51b4703e727923f.tmp" /SL5="$40218,2758642,869888,C:\Users\Admin\AppData\Local\Temp\file_b51b4703e727923f.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
PID:4232
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-2SSGQ56S0R.tmp\file_b51b4703e727923f.tmp
- Size 4.2MB
- SHA256 7e1f5d816c800a62a8c579cd216827064bb5ded9be99a4967cf0fb2912d35c32
- MD5 e2181180f1f0fd4dd6fa219b3025c387
- SHA1 6be2e3ca5aa29be5bd94414d1212146d6cdc5547
- SHA512 1261684786a62053147882c53057800f6e22eaf8f4d44f3a54d847c3292a8c909d29c1a9a8bbb3289aab42b25d0d2fa0bc0310fcaf0ccb378aeec111bd1ce6bd
- SSDEEP 49152:NoPNK2dE9FwYQ9gSlxcij31yGKTddr9ssOzNEbTWkBfJPb0lOs333+y:Ngw26xBij3QG+ddr9/OzGbRwv333L
- TLSH T1B0166C13B248653AE46B1B3B483BE258583B7F317A168D477BE41D4C4E39A807D2A7C7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-38WC1VX8OL.tmp\_isetup\_isdecmp.dll
- Size 25KB
- SHA256 60244935dea2bfde43278b14c29ca3f909518c4422a12dacd587896be692f535
- MD5 59f718987e3d0375b85678a68fcb6bbf
- SHA1 edda1e23c2b0c2d59b5479a3a5e33c16c0621326
- SHA512 7f830a7afa9493cf092313c32b925f787cb262fb0c3d59d2c6f1f1016a50d2be382ab0d9a8dda3d7125ee15713c12d08c1e734c3cd9d4d544b15ddb2234eadb8
- SSDEEP 384:PH7YbZ4uN5QJVq2IHoOOAGprOpwKNs6VozmObialldei2WSx7bLcsW:PH7YbZ46uJV2IOcX6QuAmbLfW
- TLSH T1B5C27D433E242221DEF985B1E0CEAE5F5875B3312B9454DFB86CC4E89A46BD13A650CF
- MD5 SHA1 SHA512 SSDEEP TLSH