Analysis
- user interaction
yes - max time kernel
43s - max time network
41s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
29/10/2026, 19:32
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
RsquareRAT.exe
Resource
win10v2004-20260911-en
7 signatures
150 seconds
General
- Target RsquareRAT.exe
- Size 72.2MB
- Sample261029-x9eqdaev2t
- SHA256 185489f9c0b05d0903cfae6988a2e9e3ed60ebd5ba299bf0cce752fd5f15df4c
- MD5 1d50f2daa7edd4bd474710ddb54f883a
- SHA1 79d4fd72b463c97f4fbfa2b5387a468d7ee839cc
- SHA512 43c9ed8691381a3a08cb3b08ed84cb0e44ad023a1713c42330e74239b1423fbd05f91d9d1487f9c940f9cf4d791532f2347c07bb3ba35e0cd7fb7774b63f6b38
- SSDEEP 1572864:NXbq+4F4AndVy2UmXrYGaTMbVe4kQ10adlfVwAgCHgCvQsc:NXbq2kryTWr/0i7kQ1tJrAgQsc
- TLSH T15BF72316A2FC01E8D47AC1BCC667491BEBB2344513209BEF25A48A692F37FE15E7D311
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-939655444-3071939294-1401108526-1000\Control Panel\International\Geo\Nation RsquareRAT.exe - Loads dropped DLL 4 IoCs
pid Process 2228 RsquareRAT.exe 2228 RsquareRAT.exe 2228 RsquareRAT.exe 2228 RsquareRAT.exe - 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 1696 cmd.exe - Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname RsquareRAT.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain RsquareRAT.exe - Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2228 RsquareRAT.exe 2228 RsquareRAT.exe 2228 RsquareRAT.exe 2228 RsquareRAT.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2228 RsquareRAT.exe - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 2228 wrote to memory of 1696 2228 RsquareRAT.exe 89
Processes
-
C:\Users\Admin\AppData\Local\Temp\RsquareRAT.exe"C:\Users\Admin\AppData\Local\Temp\RsquareRAT.exe"1⤵
- Checks computer location settings
- Loads dropped DLL
- Reads the TCP/IP host and domain name from the registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2228 -
C:\Windows\SYSTEM32\cmd.exe"cmd.exe" /c vol C:\2⤵
- Executes a command shell one-liner
PID:1696
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\.net\RsquareRAT\9zSTWrL8XGnb\D3DCompiler_47_cor3.dll
- Size 4.5MB
- SHA256 a05f99734f7c4822fefc12b367af21fd0976ed6608752fb1e1e80b6ece7ecbbb
- MD5 19e527a35241c171d37dc1e6c530053c
- SHA1 b1567bada7a27ab78e65da440f21809f50b9d34c
- SHA512 23d38b55f5b17bf0228b16a85787d384da0a700190fc289281190272a0d2dd374be0f7f64d8b642836ccbe2351b72e9ef5c7e2b12d0a7495317e986fd5e3c886
- SSDEEP 49152:c6ntbdeqBH287v7cavvL4e0OgcmeNHyxsBSoYHXahOO5uBcLr7mbpJ3E/V:cUdeqt737jFm5wd
- TLSH T143268D56A7E840E9D1BBD138DA87821BEBF1B80413349BDF015086599F73BD26A3E734
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.net\RsquareRAT\9zSTWrL8XGnb\PresentationNative_cor3.dll
- Size 1.2MB
- SHA256 42e2e543c17e1b37499baf00d956433b8afb655348ec0fae89c926fb7d149b6e
- MD5 bab524432d40b40f8deb7580db8953da
- SHA1 023740d409524a8ebc09436d92dc154bd7c8a270
- SHA512 fc87de8ddd3ccbba7491ca043e36a1d59195d2dab003920af6adaa8d2d0c147601fb6bda1cc21e4ef23046f3fca14f21f825403ad74178b38c60e64039747c47
- SSDEEP 24576:5GD+42x2Jvddeoyo7Pkmn/V1Pt8clT3D4iLFxVCPL67uMFAC0q4dovzvfPbRIR9p:d2BzeoRPkmTP2clT31wPO7hACNYovznq
- TLSH T138454A62E2E642E5C47FC1B8C6469717FBB0740A131C66DB87608B592F27FE0963E364
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.net\RsquareRAT\9zSTWrL8XGnb\vcruntime140_cor3.dll
- Size 121KB
- SHA256 d5e4d9a3e835fa679450145d6a7d94e36573a509317111904d9b3712c30d9066
- MD5 6ca4edb2b52ec46c7fca3fd372ca6c00
- SHA1 3d2998a27d164dd7cc3bc7d3eca08acf89a0ee42
- SHA512 bda93ff2c306c82f1942ebd538f5c77ba593e3e20792159b2a2f5ebd086c524f6c6bd3de5ad722c71ff7d832d0149608289929e9b23f7858ebb960dbb3422f5f
- SSDEEP 3072:ltkenID0f6aifkHWBXjG/Iuecbfmg4DCUil:YWSIHWBXjGlecbfYmN
- TLSH T1E4C36C42B2B401FBD16ED174C2A6AE23FB76B84547209BDF07A58A640F53BE06D3D345
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\.net\RsquareRAT\9zSTWrL8XGnb\wpfgfx_cor3.dll
- Size 1.9MB
- SHA256 501a1cd67d51bb1663870b12af0f8c0ba29b3d37b8b509be896d2aaf32db214a
- MD5 eeee8bbc00e3cbe51faec73a1d1d293d
- SHA1 31694566714c8ef46cac208e87ae443aef5931f5
- SHA512 2dacfbd99d59705ebb6ba5c7925fa574c7a967b4362d72db98ff61a04b440a04752b84daac0a7d9c36e06969a791de15a0168b665b5a801010888a7ce2e5b82d
- SSDEEP 24576:PNxEjJxMr/HLfXcxpQFaH2ekpo8DM1C3tgRlhCYC7Qrs+W0bu6p1FoHu:0jnCjfXcPmaHfsMEdgVCYC7ks+CO
- TLSH T1AC955A4AB6AC40E9C07AE23CD9D7861BF671741527A1A3CF23A4479D6F27BD0097B360
- MD5 SHA1 SHA512 SSDEEP TLSH