Analysis
- max time kernel
148s - max time network
127s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
02/11/2026, 10:13
Behavioral task
behavioral1
Sample
d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe
Resource
win11ltsc2024-20260911-en
General
- Target d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe
- Size 170KB
- Sample261102-l9f3nagy4y
- SHA256 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf
- MD5 901ff7df218f19164e4d289fd6a7064e
- SHA1 4bdceade9e88243e39c4c0ce1c6293bc88e9fa92
- SHA512 6c4446228e4391bd94a1af2cadb7a809bcf8ce7e4e0cbf2e1935f6545e2334a734fedb2187f02ecbf4f8d34bb702e76a12ded19dd32ea4e964b254ef2fec8398
- SSDEEP 3072:e51Wa8DwZU1jQupA47HGdK9ezOWSOSBdC2jPO7c4SyUMCx1asgG4PPAs2TH6Pz9L:e51Wa8DsU1jQKA47HGdK9ezOWSOSBdCL
- TLSH T1B0048D2570D2C0B3D476193114F48BB19ABDBC710B915EBB27E81B3E2E346E19527AB3
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Enumerates VirtualBox registry keys 2 TTPs 5 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxService gsEs088VEBSt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxSF gsEs088VEBSt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxVideo gsEs088VEBSt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxGuest gsEs088VEBSt.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\VBoxMouse gsEs088VEBSt.exe - Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\FADT\VBOX__ gsEs088VEBSt.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\RSDT\VBOX__ gsEs088VEBSt.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ gsEs088VEBSt.exe - Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\Oracle\VirtualBox Guest Additions gsEs088VEBSt.exe - Downloads MZ/PE file 15 IoCs
flow pid Process 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 9 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 11 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 11 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 11 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 11 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 11 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 11 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 14 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe - Looks for VMWare Tools registry key 2 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\SOFTWARE\VMware, Inc.\VMware Tools gsEs088VEBSt.exe - Checks BIOS information in registry 2 TTPs 3 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion gsEs088VEBSt.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion gsEs088VEBSt.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate gsEs088VEBSt.exe - Executes dropped EXE 15 IoCs
pid Process 1620 CsvkjT8rm2z.exe 4368 XOamdwSKKXG.exe 3752 wP0ULTCyGGd.exe 5556 UzangarV9vnWN.exe 5416 M97tRgNESpzp.exe 1476 JYTryutqA9.exe 5808 LtvS7opfk.exe 860 p387mk1jT.exe 4860 FKNwxQSsauA.exe 6036 n4viMvzouwbhk.exe 5240 se8TQNRCWptr.exe 3248 6ogM9plCMX1EP.exe 5592 gsEs088VEBSt.exe 4868 cLvQBKTquS.exe 1048 tHtL8P3UeRa.exe - Loads dropped DLL 1 IoCs
pid Process 5592 gsEs088VEBSt.exe - Checks system information in the registry 2 TTPs 2 IoCs
System information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemManufacturer gsEs088VEBSt.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SystemInformation\SystemProductName gsEs088VEBSt.exe - Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs
Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.
description ioc Process File opened (read-only) \??\VBoxMiniRdrDN gsEs088VEBSt.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 4 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\Domain gsEs088VEBSt.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Domain d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Tcpip\Parameters\Hostname gsEs088VEBSt.exe - System Location Discovery: System Language Discovery 1 TTPs 1 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 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\BIOS gsEs088VEBSt.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer gsEs088VEBSt.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName gsEs088VEBSt.exe - Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe 5592 gsEs088VEBSt.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2600 wrote to memory of 1620 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 89 PID 2600 wrote to memory of 4368 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 91 PID 2600 wrote to memory of 3752 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 93 PID 2600 wrote to memory of 5556 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 95 PID 2600 wrote to memory of 5416 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 97 PID 2600 wrote to memory of 1476 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 99 PID 2600 wrote to memory of 5808 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 101 PID 2600 wrote to memory of 860 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 104 PID 2600 wrote to memory of 4860 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 106 PID 2600 wrote to memory of 6036 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 108 PID 2600 wrote to memory of 5240 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 110 PID 2600 wrote to memory of 3248 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 112 PID 2600 wrote to memory of 5592 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 114 PID 2600 wrote to memory of 4868 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 115 PID 2600 wrote to memory of 1048 2600 d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe 117
Processes
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C:\Users\Admin\AppData\Local\Temp\d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe"C:\Users\Admin\AppData\Local\Temp\d3b3a4973f2513fc0513039eab279fc808fcb48ce4ce3a0bc5c3b734217cafaf.exe"1⤵
- Downloads MZ/PE file
- Reads the TCP/IP host and domain name from the registry
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600 -
C:\Users\Admin\AppData\Roaming\bLXA0ep\CsvkjT8rm2z.exe"C:\Users\Admin\AppData\Roaming\bLXA0ep\CsvkjT8rm2z.exe"2⤵
- Executes dropped EXE
PID:1620
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C:\Users\Admin\AppData\Roaming\pSljVf5\XOamdwSKKXG.exe"C:\Users\Admin\AppData\Roaming\pSljVf5\XOamdwSKKXG.exe"2⤵
- Executes dropped EXE
PID:4368
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C:\Users\Admin\AppData\Roaming\7YLYZn6N3r\wP0ULTCyGGd.exe"C:\Users\Admin\AppData\Roaming\7YLYZn6N3r\wP0ULTCyGGd.exe"2⤵
- Executes dropped EXE
PID:3752
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C:\Users\Admin\AppData\Roaming\vyp1fRHHA\UzangarV9vnWN.exe"C:\Users\Admin\AppData\Roaming\vyp1fRHHA\UzangarV9vnWN.exe"2⤵
- Executes dropped EXE
PID:5556
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C:\Users\Admin\AppData\Roaming\T17v9Wu0u\M97tRgNESpzp.exe"C:\Users\Admin\AppData\Roaming\T17v9Wu0u\M97tRgNESpzp.exe"2⤵
- Executes dropped EXE
PID:5416
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C:\Users\Admin\AppData\Roaming\jkCb2X66\JYTryutqA9.exe"C:\Users\Admin\AppData\Roaming\jkCb2X66\JYTryutqA9.exe"2⤵
- Executes dropped EXE
PID:1476
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C:\Users\Admin\AppData\Roaming\gWZtX8Ib\LtvS7opfk.exe"C:\Users\Admin\AppData\Roaming\gWZtX8Ib\LtvS7opfk.exe"2⤵
- Executes dropped EXE
PID:5808
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C:\Users\Admin\AppData\Roaming\HDVh1Tm\p387mk1jT.exe"C:\Users\Admin\AppData\Roaming\HDVh1Tm\p387mk1jT.exe"2⤵
- Executes dropped EXE
PID:860
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C:\Users\Admin\AppData\Roaming\sGBNAJf6Ki\FKNwxQSsauA.exe"C:\Users\Admin\AppData\Roaming\sGBNAJf6Ki\FKNwxQSsauA.exe"2⤵
- Executes dropped EXE
PID:4860
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C:\Users\Admin\AppData\Roaming\M3nXg0U9E\n4viMvzouwbhk.exe"C:\Users\Admin\AppData\Roaming\M3nXg0U9E\n4viMvzouwbhk.exe"2⤵
- Executes dropped EXE
PID:6036
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C:\Users\Admin\AppData\Roaming\on219dDDz\se8TQNRCWptr.exe"C:\Users\Admin\AppData\Roaming\on219dDDz\se8TQNRCWptr.exe"2⤵
- Executes dropped EXE
PID:5240
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C:\Users\Admin\AppData\Roaming\eYRWf53y\6ogM9plCMX1EP.exe"C:\Users\Admin\AppData\Roaming\eYRWf53y\6ogM9plCMX1EP.exe"2⤵
- Executes dropped EXE
PID:3248
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C:\Users\Admin\AppData\Roaming\2w8bYqsN\gsEs088VEBSt.exe"C:\Users\Admin\AppData\Roaming\2w8bYqsN\gsEs088VEBSt.exe"2⤵
- Enumerates VirtualBox registry keys
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Executes dropped EXE
- Loads dropped DLL
- Checks system information in the registry
- Checks for VirtualBox DLLs, possible anti-VM trick
- Reads the TCP/IP host and domain name from the registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
PID:5592
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C:\Users\Admin\AppData\Roaming\auOuyMCqqQM\cLvQBKTquS.exe"C:\Users\Admin\AppData\Roaming\auOuyMCqqQM\cLvQBKTquS.exe"2⤵
- Executes dropped EXE
PID:4868
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C:\Users\Admin\AppData\Roaming\8NtQlVQuhs\tHtL8P3UeRa.exe"C:\Users\Admin\AppData\Roaming\8NtQlVQuhs\tHtL8P3UeRa.exe"2⤵
- Executes dropped EXE
PID:1048
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\~2fb13d8c.dat
- Size 926KB
- SHA256 6606ea30c164992165c752ea25e997bf1e4191d008ff15edd4996ba523e8633e
- MD5 d1cd342e68b10527fbf7455f0c285f2e
- SHA1 957f21b52a740f58838cd72dd6c3e2e3a94b553b
- SHA512 0cf57fdba577d1524b83ab70e7d1c706ca8d545a91bb38d6922ea53be60f1a588449247bc7bb24a162e28122647bb8b392b821f3c624f961c793fbb60e873118
- SSDEEP 24576:Kr8XEmwyQcRN3mrq1KMxVbRIyvnkFwKvQgr/dmSly8wGZyczgh9Neo2wsYAHsUeF:y8UmwyQcRN3mrq1KMxVbRIyvnkFwKvQX
- TLSH T1A6156C1472A352C6E037553AD5CEBA17B1B2BC165AE0DF2B0A408FC76AD3260376B357
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Local\Temp\3dJWrwVCeYwwSuD52eSwN4sef3E\YCL.exe
- Size 2.4MB
- SHA256 562befc15c7530127bae89358c12bc7d902b74e747b349064c6a357cd1c49556
- MD5 f1b6fe67df44f0865c707dbd39c955ce
- SHA1 9b599fd3d12c55f124ff910de1b2a6f27280cea8
- SHA512 5690b83914cc6d4025796bc1fe75acad257ce279b7f27ae062dfd8ae0fafdbc56f8a8bd45227ddc660395633b90006bd9c4a09f8435a625b4e7215a016f5320d
- SSDEEP 49152:NxbZkNARkhxqH7VDE+46IAGHPx23n4V+bNLrwXx+sE:J2ARkhUILU34V+bNLB
- TLSH T1A3C53807D3F681D8E1FBE730CAB262735D72BC199538A65D1685CA251E30F709F29B22
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\2w8bYqsN\gsEs088VEBSt.exe
- Size 581KB
- SHA256 b4990aa8dd771a09af9b559f334d680d2cfce5ba8da4e5319b36720c9159897b
- MD5 38f9db3db238cc16b2ad2058d53e8500
- SHA1 340a3f6f9e1be33d5072b1ca1c38bd2d48a5198d
- SHA512 451abc292917ca237b6e0ee2fe54cb19d5994eb8f14acc5409ee1ac3ab036bb6d1eb4ad6826068123f0f1824f81a00f2a0ac5aa15283fba301d0500ecaf27c35
- SSDEEP 12288:eB+1aSSRLhQ4xPEltMibm988p3R4j4/F7hwSSSESSNHrC8:YBSM+4xPEpb2v7N1wSSSESSNLC8
- TLSH T1E0C4BE2BE7A244FDC12B40719B97A2B1A532F8250234BA6F07D9DF322E59C740FDE654
- MD5 SHA1 SHA512 SSDEEP TLSH
- Path C:\Users\Admin\AppData\Roaming\bLXA0ep\CsvkjT8rm2z.exe
- Size 16KB
- SHA256 69fe2d9f48833d84fc001182e34d1e004a1019208f261c19654598dbc390bc3c
- MD5 eb61c25720cef7e40116b7d7c7a565a8
- SHA1 a7446cb76b8023bf7c2903427aa8fa0563990f9c
- SHA512 4cb403e2dd27eab25b07ea7bd7599556e99d355e056c5b24f5140c9e2f529e58a12841b779857eeb462d8f8320e60d440779f00f8630f94d2c6c9f284a7c7a0f
- SSDEEP 192:sEn3gSr0JFH8CyuMYj+THdI+J0HKVFDqBH+2sY02F0Csza:LQSrUxMYj+Tj0HcFkH+2sJO0CW
- TLSH T1E772A399B75390E9D68ED0B0D8D38FB1E571FDA20674663B2384E2391E31D878A3D117
- MD5 SHA1 SHA512 SSDEEP TLSH