Analysis
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max time kernel
154s -
max time network
161s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
16-05-2024 01:35
Static task
static1
Behavioral task
behavioral1
Sample
9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe
Resource
win7-20240508-en
Behavioral task
behavioral2
Sample
9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe
Resource
win10v2004-20240226-en
General
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Target
9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe
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Size
3.7MB
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MD5
e77976974a972c65cb25253540f47991
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SHA1
186cc8aecf6d842617847664b7749cfa51a6670d
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SHA256
9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432
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SHA512
ee4e679e948e8d42a704df0e1dca106056da65c48e7ca97aec5c5c0720569be78027e72c57773f16b6bc1cbd1ba2cb0a04238c19e3116af7176f73bd8c9ecb17
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SSDEEP
98304:QaSNSfTz9wabjIKXScmmZ6n205zg1FNd:QaSNSfTzCafV0Ay205E1F
Malware Config
Signatures
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Detects executables packed with unregistered version of .NET Reactor 1 IoCs
resource yara_rule behavioral2/memory/4244-1-0x0000000000020000-0x00000000003D8000-memory.dmp INDICATOR_EXE_Packed_DotNetReactor -
.NET Reactor proctector 1 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
resource yara_rule behavioral2/memory/4244-1-0x0000000000020000-0x00000000003D8000-memory.dmp net_reactor -
Loads dropped DLL 1 IoCs
pid Process 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4244 set thread context of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 1316 MsBuild.exe Token: SeBackupPrivilege 1316 MsBuild.exe Token: SeSecurityPrivilege 1316 MsBuild.exe Token: SeSecurityPrivilege 1316 MsBuild.exe Token: SeSecurityPrivilege 1316 MsBuild.exe Token: SeSecurityPrivilege 1316 MsBuild.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101 PID 4244 wrote to memory of 1316 4244 9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe 101
Processes
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C:\Users\Admin\AppData\Local\Temp\9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe"C:\Users\Admin\AppData\Local\Temp\9d7d0bf89ec473e919eb4c8de51b48f90e5afdc94fd99c09f94863f78086c432.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4244 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\MsBuild.exe2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1316
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3180 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:81⤵PID:2436
Network
MITRE ATT&CK Matrix
Replay Monitor
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Downloads
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Filesize
742KB
MD5544cd51a596619b78e9b54b70088307d
SHA14769ddd2dbc1dc44b758964ed0bd231b85880b65
SHA256dfce2d4d06de6452998b3c5b2dc33eaa6db2bd37810d04e3d02dc931887cfddd
SHA512f56d8b81022bb132d40aa78596da39b5c212d13b84b5c7d2c576bbf403924f1d22e750de3b09d1be30aea359f1b72c5043b19685fc9bf06d8040bfee16b17719