Analysis
- max time kernel
42s - max time network
55s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows - submitted
13/11/2026, 12:19
Static task
static1
Behavioral task
behavioral1
Sample
.exe
Resource
win10v2004-20260911-en
Errors
General
- Target .exe
- Size 447KB
- Sample261113-phlevabv6t
- SHA256 d8c72ff4db95e13f02a216e2921c34c6fc8f1a9fc1e8120b4fd78a1fb7537032
- MD5 544b91856b4d4dc5df969aefd7c95e84
- SHA1 659af34b0ecc49112eb4a7d18c57fe514dfabb53
- SHA512 4233bbaad9cfe90f7357741bc7934111bd5505047dda498f40f255aad67a8372048dbc8c36663ab46283dbba65ee48b9c422756bbb0546277eb63127e60dbd9f
- SSDEEP 3072:gNIeyo5hPUpRea2fLHo42kem5GUJ+LrySXN9+VXVI231DEd01a:gNIevPIP2To/DUKrV99Wi21DEd0
- TLSH T156A475C6C0915302698F086E32B5F0D4A6395866DF3F64F542EEE63A2074B2D4E1DDEB
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
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neptunerat
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sadkajwdjlkaw-38271.portmap.host:38271
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filename
USB.exe
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group
MasonGroup
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key
zMSp1VfmTTwf21s0
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rat_name
MasonRAT
Signatures
- Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects DonutLoader 1 IoCs
resource yara_rule behavioral1/memory/3988-1-0x0000000001640000-0x0000000001654000-memory.dmp family_donutloader - Detects NeptuneRAT stealer 1 IoCs
resource yara_rule behavioral1/memory/3988-4-0x0000000001690000-0x00000000016A2000-memory.dmp family_neptunerat - Checks computer location settings 2 TTPs 6 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation .exe Key value queried \REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation tmpD155.tmp.exe Key value queried \REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation tmpE2CB.tmp.exe Key value queried \REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation tmpF421.tmp.exe Key value queried \REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation MBR2.exe Key value queried \REGISTRY\USER\S-1-5-21-895009113-1202185046-1686627690-1000\Control Panel\International\Geo\Nation MatrixMBR.exe - Executes dropped EXE 14 IoCs
pid Process 3596 tmpD155.tmp.exe 3436 MBR2.exe 1552 TROLL5.exe 4824 TROLL2.exe 4844 tmpE2CB.tmp.exe 4868 MBR2.exe 2768 TROLL5.exe 2280 TROLL2.exe 4816 tmpF421.tmp.exe 4204 MBR2.exe 4328 TROLL5.exe 5004 TROLL2.exe 3936 MatrixMBR.exe 3196 GDI.exe - Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
flow ioc 5 raw.githubusercontent.com 6 raw.githubusercontent.com - Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\System32\MatrixMBR.exe MBR2.exe File opened for modification C:\Windows\System32\MatrixMBR.exe MBR2.exe - Enumerates video capture drivers 2 TTPs 1 IoCs
Queries the legacy Video for Windows capture drivers. This is commonly abused by RATs to check for available webcams on the system before reporting to their C2.
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32\msvideo9 .exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 .exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain .exe - System Location Discovery: System Language Discovery 1 TTPs 5 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 TROLL5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TROLL5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language GDI.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TROLL5.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TROLL2.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3988 .exe - Suspicious use of WriteProcessMemory 14 IoCs
description pid Process procid_target PID 3988 wrote to memory of 3596 3988 .exe 95 PID 3596 wrote to memory of 3436 3596 tmpD155.tmp.exe 96 PID 3596 wrote to memory of 1552 3596 tmpD155.tmp.exe 97 PID 3596 wrote to memory of 4824 3596 tmpD155.tmp.exe 98 PID 3988 wrote to memory of 4844 3988 .exe 100 PID 4844 wrote to memory of 4868 4844 tmpE2CB.tmp.exe 102 PID 4844 wrote to memory of 2768 4844 tmpE2CB.tmp.exe 103 PID 4844 wrote to memory of 2280 4844 tmpE2CB.tmp.exe 104 PID 3988 wrote to memory of 4816 3988 .exe 106 PID 4816 wrote to memory of 4204 4816 tmpF421.tmp.exe 107 PID 4816 wrote to memory of 4328 4816 tmpF421.tmp.exe 108 PID 4816 wrote to memory of 5004 4816 tmpF421.tmp.exe 109 PID 3436 wrote to memory of 3936 3436 MBR2.exe 110 PID 3936 wrote to memory of 3196 3936 MatrixMBR.exe 111
Processes
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C:\Users\Admin\AppData\Local\Temp\.exe"C:\Users\Admin\AppData\Local\Temp\.exe"1⤵
- Checks computer location settings
- Enumerates video capture drivers
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3988 -
C:\Users\Admin\AppData\Local\Temp\tmpD155.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpD155.tmp.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3596 -
C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"3⤵
- Checks computer location settings
- Executes dropped EXE
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:3436 -
C:\Windows\System32\MatrixMBR.exe"C:\Windows\System32\MatrixMBR.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3936 -
C:\Users\Admin\AppData\Local\Temp\GDI.exe"C:\Users\Admin\AppData\Local\Temp\GDI.exe"5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3196
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C:\Users\Admin\AppData\Local\Temp\MBR.exe"C:\Users\Admin\AppData\Local\Temp\MBR.exe"5⤵PID:1648
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C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1552
-
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C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4824
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C:\Users\Admin\AppData\Local\Temp\tmpE2CB.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpE2CB.tmp.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4844 -
C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"3⤵
- Executes dropped EXE
PID:4868
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C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2768
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C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"3⤵
- Executes dropped EXE
PID:2280
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C:\Users\Admin\AppData\Local\Temp\tmpF421.tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmpF421.tmp.exe"2⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:4816 -
C:\Users\Admin\AppData\Local\Temp\MBR2.exe"C:\Users\Admin\AppData\Local\Temp\MBR2.exe"3⤵
- Executes dropped EXE
PID:4204
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C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"C:\Users\Admin\AppData\Local\Temp\TROLL5.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4328
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C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"C:\Users\Admin\AppData\Local\Temp\TROLL2.exe"3⤵
- Executes dropped EXE
PID:5004
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x2d4 0x4781⤵PID:860
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\MBR2.exe.log
- Size 654B
- SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
- MD5 2ff39f6c7249774be85fd60a8f9a245e
- SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
- SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
- TLSH T1D9F0DD242221E1C489127F111C0D2A4452BF4797B760EE0C7554529FD8312275F203E7
- MD5 SHA1 SHA512 TLSH
- Path C:\Users\Admin\AppData\Local\Temp\GDI.exe
- Size 11KB
- SHA256 e153def894c867923dd56a7025b7b0b7bd3ee37c801a5957201d39f999bb28bf
- MD5 c08ae6d9c6ecd7e13f827bf68767785f
- SHA1 e71c2ec8d00c1e82b8b07baee0688b0a28604454
- SHA512 c28bbe8abc66ad2433e5a3b93a4601b28225e86cb4bff077fd3224adfa63164bebfa3002a42b1cb4cb3c7ccad0208f8b143b8a17099bea04fcb964e667c7a1c0
- SSDEEP 192:99qzCdTRiOurQItQ6YTkMfTiC96Tp80/Yc/75e:PXdTROQItQTTka2O6Tp3/Yc/g
- TLSH T1B432191197D08276ED320AB278A35742CB77EB57D967DABE348C912BBF732014293361
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\MBR.exe
- Size 93KB
- SHA256 acddde9514e3b9d5c40b3d1750af5f4187c99f8987b027d6da44fb6bcf79b3ca
- MD5 d2fc66cf781a2497fceb4041a93cc676
- SHA1 480b1aa31b0b31fc0e0833afbba06533ab9a90ee
- SHA512 6c4cb42f786301be7614d4cb0b32601fea151351b0877e2371632435eb2c54bd4cd04d6b23bf4f49017ccaf679331162aac7329a1ed2409e3c2e02d0326e3487
- SSDEEP 1536:CmwoXyoci5SjY3SaRO7IPqifrJxdhGZCJjmGasWhQcdQ5/hO2oFaLJ:Tv5MYRIMPqiTJx+ZqreRQ5/hXoM9
- TLSH T10A936C43B5D28CB2E5B21D311875CAA15A2FB9214E348E6B6794137E1F340D09E36FB7
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\MBR2.exe
- Size 205KB
- SHA256 c22e2419f04fe03a92255a139ca8814697962e86d191a1d4171788fd0c903f68
- MD5 3dc0e225f886bae3b655cd9d738ed32f
- SHA1 abda127fd477bd9d051cd57b16ac13f44030a9ae
- SHA512 c8a6c0bfa96defde6f83d847583ff2ec065a43f80f9886259a2d1fe7df306ef6ed7aeed61b7dcf0bdc111fc67419eb66cf1ca44e831711dd4ea7d25ed9aed09b
- SSDEEP 3072:VQKrqi3qqKcjzksuicc/9Ic9hwBjQV8xWegUqijR4uTkEJxIiLt2p/YkMhapu4n4:Vruc/iuwBMV8x5gUqMR4aMiLcpj84
- TLSH T1D92423001754132EFB59C0F6019712B381EBD3AE9E1B9489F3F9921BDB6B10ED91747A
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\TROLL2.exe
- Size 105KB
- SHA256 dcdf5140bc51db27f3aec80ae9a66a57aad446a2522904d288770e8d8cde8cee
- MD5 52a2a5517deb1a06896891a35299ce20
- SHA1 badcbdfef312bd71de997a7416ee20cee5d66af6
- SHA512 7cb0de412c0508f5af522aeaf3731dda418f72f7cae8dd3f21b34d5cdbc08f9dea8699d59878610496c68d687227a0269739221490d70d03b8e4b84dfd29d5f1
- SSDEEP 1536:A85iT6EcrYTyyAmOvu3yUyJCbT4UK7BIR:IGEcxyAF64A
- TLSH T1D6B3F6D7BE8AADA3F925133989F98319033DF7C01B828B171D31993A17176A17FC5246
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\TROLL5.exe
- Size 712KB
- SHA256 79f00c7dab0891824136539fabd542c74e26cbed94b9add3f1aa7f793d653de6
- MD5 542a4e400ff233b21a1a3c27751ac783
- SHA1 000a67f00b0003531d65a6ed6f16488ae5dcd0fe
- SHA512 8335118ca0c268635d9495b331fb65800a32a0631f132cd34ce84ca3b523d0a9e23eee6d76539d0c81d86fda534da56c936914012d8bad35040b15cc8caaf645
- SSDEEP 12288:cF04yK+m1Vd5IfbJQWYzBVXqKWOF+LmguP/WMYZCubHKG91MiYwd:Z4yedWfEHnWbLunWMYUaHzLY2
- TLSH T1BDF423738484A51CD6EFCE33A0F1FC3463BAFE2761198C112294EDD46AA715097CBB65
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\tmpD155.tmp.exe
- Size 921KB
- SHA256 deaf30953149d0bef45a11bd89f4ef69f77115e50380c7ef3607c37ff4f40a1d
- MD5 03c3e9290329eec39c6543006f9ac9f1
- SHA1 78e676fc850fb5d4e1c75b813f15b841fdf7705d
- SHA512 b2c5b1b060a0349bc92cc5a8b286f149b5cf6b40264e7b613b76c911e4acc6352ed0fdd9d945fae9c025963cae02f3f2cbef8a62bff844764a66481119c6321d
- SSDEEP 24576:QCFZOZHLhrN+f4SULfWyBPzB8JAk4cQATg:1F+LL+fIWybB8
- TLSH T13B15239832772A1FCCE72737E5E739A463AE323D0937229D04A5F37D1E415C05726AA2
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Windows\System32\MatrixMBR.exe
- Size 250KB
- SHA256 339fe94164952a8454e6ec5fc75e2c38baade2c14b231e47bf41989ffbb55ee4
- MD5 24c441662c09b94e14a4096a8e59c316
- SHA1 11576cad137bd8ed76efecd711c0390fe5c85292
- SHA512 7f6ca1366733c5fb4925001c0846510732031a9e5f1b16291ff596187c20a88f41193389cedcb73e3928c318fc972be4f03e3cb71f1487c34642897ff9a2b590
- SSDEEP 6144:XGaiVa9WL/GgkszuMO1yV8xTgUqMRQaMiBcxj8:Waisszux1yGRLHBo
- TLSH T1FD4402053F44A465D3689BB08AF3E2A782B8FD396C02D95BFD84775F2E37D0E9801265
- MD5 SHA1 SHA512 SSDEEP TLSH