Analysis
- max time kernel
150s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
13/08/2026, 17:25
Behavioral task
behavioral1
Sample
a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe
Resource
win10v2004-20260513-en
6 signatures
150 seconds
General
- Target a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe
- Size 6.7MB
- Sample260813-vzdn8avemc
- SHA256 a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022
- MD5 cba1293ce8b9f19266f69a59763ca27b
- SHA1 2ee078b91d2334bd0b2453dd71e3017891825e98
- SHA512 1d4a83a3f38e26389a2e76f4716be6371d4390750f34b9ea117696608ab6449202ec16602a800d352ef7e9bb070e697e55f0b03bc16d469e4238b3b84f2738d2
- SSDEEP 196608:ZnfhrkFSQgwt3Frd8uvDvh6C68gBJBCvKzdz8dSC2V:ZnZrcSQgWXDvh6C68gP2KzRnCK
- TLSH T1C0661213E24EA33EE46A953509B29951983FBE51681E8CA3D6EC3D4CCE390501E7EF47
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 5292 a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.tmp - Executes a command shell one-liner 1 TTPs 1 IoCs
Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.
pid Process 2592 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 a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.tmp - System Time Discovery 1 TTPs 2 IoCs
Adversary may gather the system time and/or time zone settings from a local or remote system.
pid Process 2592 cmd.exe 3344 dotnet.exe - Inno Setup is an open-source installation builder for Windows applications. 2 IoCs
Inno Setup installer
resource yara_rule behavioral2/memory/1856-1-0x0000000000E30000-0x0000000000F17000-memory.dmp innosetup behavioral2/memory/1856-11-0x0000000000E30000-0x0000000000F17000-memory.dmp innosetup - Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1856 wrote to memory of 5292 1856 a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe 89 PID 5292 wrote to memory of 2592 5292 a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.tmp 90 PID 2592 wrote to memory of 3344 2592 cmd.exe 92
Processes
-
C:\Users\Admin\AppData\Local\Temp\a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe"C:\Users\Admin\AppData\Local\Temp\a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1856 -
C:\Users\Admin\AppData\Local\Temp\is-56SHG.tmp\a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.tmp"C:\Users\Admin\AppData\Local\Temp\is-56SHG.tmp\a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.tmp" /SL5="$70212,5846162,882176,C:\Users\Admin\AppData\Local\Temp\a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5292 -
C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe" /C dotnet --list-runtimes > "C:\Users\Admin\AppData\Local\Temp\is-5QLPC.tmp\dotnet.txt" 2>&13⤵
- Executes a command shell one-liner
- System Time Discovery
- Suspicious use of WriteProcessMemory
PID:2592 -
C:\Program Files\dotnet\dotnet.exedotnet --list-runtimes4⤵
- System Time Discovery
PID:3344
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\is-56SHG.tmp\a54561fa4d9687f7b5e4015c2ec16ddd33c37b252e72726c29499c1dd5441022.tmp
- Size 3.5MB
- SHA256 dccb5f36dfbfe944e306e26d7db5b8b598eb234c495574eb22811b35ef722879
- MD5 3f999af31cf905b34e98db03a10d7503
- SHA1 ac1a68f80ddf637b795842f62e80d2320fca0202
- SHA512 a84cb05822968da9e7435d0dc5f3c40752e7c923f9dcc7c26feb7ac599ee999d496c58b8fb8b01d7c4d1e450e6e46e906832e731baf7d0937dda80f6796bba90
- SSDEEP 49152:j6RlZSDcbZsSNFZnpZv4sxNhdaodRl4FHKBCE333Tv:j6RHzbv4sxNhnrl5B9333T
- TLSH T14E067D13F3C5603ED05B2A3A79379245983F7A6079168C579BEC3E8C4F752812E2A787
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\is-5QLPC.tmp\dotnet.txt
- Size 552B
- SHA256 3a540187aba2047118a389c22152a488c215f21766cd75e59c187f7c414bddb1
- MD5 bb1ccb3c24a94cf904ce4144c1253352
- SHA1 0f8bdf7add3f3d408fadfa1902f5436a4cd725e2
- SHA512 8893124fefb3effca66bd4b783b46f8f3adf0ddd4fd5146d879f1cc10303b1e5bef2903a87c5b8d5a1c85432ac83c6e201a5b8998b0e8af671cb2d6048308f9f
- TLSH T1E3F01249EB10D14366733944572F7A407F0A5EAF87C59E6203C74153D5C5F6B855C4D0
- MD5 SHA1 SHA512 TLSH