Analysis
- max time kernel
149s - max time network
140s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
17/08/2026, 04:07
Static task
static1
Behavioral task
behavioral1
Sample
NYMPH_THETIS_MAIN_VSL_PARTICULARSpdf.js
Resource
win10v2004-20260513-en
18 signatures
150 seconds
Behavioral task
behavioral2
Sample
NYMPH_THETIS_MAIN_VSL_PARTICULARSpdf.js
Resource
win11ltsc2024-20260709-en
17 signatures
150 seconds
General
- Target NYMPH_THETIS_MAIN_VSL_PARTICULARSpdf.js
- Size 3.0MB
- Sample260817-epwt2sshmf
- SHA256 9e3076097c99e0fef6b7bc23763e8af3e8f2e605340d760dc48323cbe1b35e54
- MD5 7a17009a4280e3c5637b36ef751a6eae
- SHA1 8673281fb546c14b533f2bc9da39bafd2007429b
- SHA512 6a066a50f77c209ebe8d544625b4de723d93ea4ac81641ca63cc2a74022387fa184b864361877b06f8824737a5dcd2cc05e09127620f3ca5660f9517def13749
- SSDEEP 24576:R4Ae9ni70VEFONuZxQbf8er4JaAXvrYvNrj5uQyw09MwPTxxkDnew1zoPrC9X9YJ:R4AG0XakmzEgfy3P6nkDXQEes
- TLSH T197E5F9E222DE578F9A2A379ADA8C4A4C0767C2149EC372E174DF07448F0F48D6994D6F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Formbook payload 4 IoCs
resource yara_rule behavioral2/memory/1696-25-0x0000000000E80000-0x0000000000EC6000-memory.dmp family_formbook behavioral2/memory/1696-27-0x0000000000E80000-0x0000000000EC6000-memory.dmp family_formbook behavioral2/memory/1696-36-0x0000000000E80000-0x0000000000EC6000-memory.dmp family_formbook behavioral2/memory/2232-37-0x0000000000D80000-0x0000000000DC3000-memory.dmp family_formbook - Badlisted process makes network request 5 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 8 3720 wscript.exe 9 3720 wscript.exe 10 3720 wscript.exe 11 3720 wscript.exe 11 3720 wscript.exe - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 5500 powershell.exe - Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key enumerated \REGISTRY\USER\S-1-5-21-189034102-168398478-1159367937-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook SearchProtocolHost.exe - ConfuserEx .NET packer 2 IoCs
Detects ConfuserEx .NET packer.
resource yara_rule behavioral2/memory/5500-21-0x0000020E65EC0000-0x0000020E65ED4000-memory.dmp ConfuserEx behavioral2/memory/5500-23-0x0000020E65EE0000-0x0000020E65EF4000-memory.dmp ConfuserEx - Suspicious use of SetThreadContext 21 IoCs
description pid Process procid_target PID 5500 set thread context of 1696 5500 powershell.exe 96 PID 1696 set thread context of 3720 1696 aspnet_compiler.exe 87 PID 1696 set thread context of 2232 1696 aspnet_compiler.exe 97 PID 5500 set thread context of 5852 5500 powershell.exe 98 PID 2232 set thread context of 3720 2232 SearchProtocolHost.exe 87 PID 5500 set thread context of 1204 5500 powershell.exe 100 PID 5500 set thread context of 3244 5500 powershell.exe 103 PID 5500 set thread context of 1076 5500 powershell.exe 104 PID 5500 set thread context of 5720 5500 powershell.exe 106 PID 2232 set thread context of 2848 2232 SearchProtocolHost.exe 105 PID 5500 set thread context of 3624 5500 powershell.exe 107 PID 5500 set thread context of 5676 5500 powershell.exe 108 PID 5500 set thread context of 5684 5500 powershell.exe 109 PID 5500 set thread context of 1408 5500 powershell.exe 111 PID 5500 set thread context of 5712 5500 powershell.exe 114 PID 5500 set thread context of 3432 5500 powershell.exe 116 PID 5500 set thread context of 1792 5500 powershell.exe 117 PID 5500 set thread context of 696 5500 powershell.exe 118 PID 5500 set thread context of 708 5500 powershell.exe 120 PID 5500 set thread context of 2772 5500 powershell.exe 124 PID 5500 set thread context of 4540 5500 powershell.exe 125 - Command and Scripting Interpreter: JavaScript 1 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 SearchProtocolHost.exe - Kills process with taskkill 1 IoCs
pid Process 4792 taskkill.exe -
description ioc Process Key created \Registry\User\S-1-5-21-189034102-168398478-1159367937-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 SearchProtocolHost.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 1696 aspnet_compiler.exe 1696 aspnet_compiler.exe 1696 aspnet_compiler.exe 1696 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe 2232 SearchProtocolHost.exe 2232 SearchProtocolHost.exe 2232 SearchProtocolHost.exe 2232 SearchProtocolHost.exe 5500 powershell.exe 5852 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 1204 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 3244 aspnet_compiler.exe 5500 powershell.exe 1076 aspnet_compiler.exe 5500 powershell.exe 5720 aspnet_compiler.exe 5500 powershell.exe 3624 aspnet_compiler.exe 5500 powershell.exe 5676 aspnet_compiler.exe 5500 powershell.exe 5684 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 1408 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 5712 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe 5500 powershell.exe 3432 aspnet_compiler.exe 5500 powershell.exe 1792 aspnet_compiler.exe 5500 powershell.exe 696 aspnet_compiler.exe 5500 powershell.exe 5500 powershell.exe - Suspicious behavior: MapViewOfSection 7 IoCs
pid Process 1696 aspnet_compiler.exe 3720 wscript.exe 3720 wscript.exe 2232 SearchProtocolHost.exe 2232 SearchProtocolHost.exe 2232 SearchProtocolHost.exe 2232 SearchProtocolHost.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5500 powershell.exe Token: SeDebugPrivilege 4792 taskkill.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 3720 wrote to memory of 5500 3720 wscript.exe 89 PID 5500 wrote to memory of 5788 5500 powershell.exe 91 PID 5500 wrote to memory of 4824 5500 powershell.exe 92 PID 5500 wrote to memory of 3416 5500 powershell.exe 93 PID 5500 wrote to memory of 5412 5500 powershell.exe 94 PID 5500 wrote to memory of 5964 5500 powershell.exe 95 PID 5500 wrote to memory of 1696 5500 powershell.exe 96 PID 5500 wrote to memory of 1696 5500 powershell.exe 96 PID 5500 wrote to memory of 1696 5500 powershell.exe 96 PID 3720 wrote to memory of 2232 3720 wscript.exe 97 PID 5500 wrote to memory of 5852 5500 powershell.exe 98 PID 5500 wrote to memory of 5852 5500 powershell.exe 98 PID 5500 wrote to memory of 5852 5500 powershell.exe 98 PID 5500 wrote to memory of 4960 5500 powershell.exe 99 PID 5500 wrote to memory of 1204 5500 powershell.exe 100 PID 5500 wrote to memory of 1204 5500 powershell.exe 100 PID 5500 wrote to memory of 1204 5500 powershell.exe 100 PID 5500 wrote to memory of 5416 5500 powershell.exe 102 PID 5500 wrote to memory of 3244 5500 powershell.exe 103 PID 5500 wrote to memory of 3244 5500 powershell.exe 103 PID 5500 wrote to memory of 3244 5500 powershell.exe 103 PID 5500 wrote to memory of 1076 5500 powershell.exe 104 PID 5500 wrote to memory of 1076 5500 powershell.exe 104 PID 5500 wrote to memory of 1076 5500 powershell.exe 104 PID 2232 wrote to memory of 2848 2232 SearchProtocolHost.exe 105 PID 5500 wrote to memory of 5720 5500 powershell.exe 106 PID 5500 wrote to memory of 5720 5500 powershell.exe 106 PID 5500 wrote to memory of 5720 5500 powershell.exe 106 PID 5500 wrote to memory of 3624 5500 powershell.exe 107 PID 5500 wrote to memory of 3624 5500 powershell.exe 107 PID 5500 wrote to memory of 3624 5500 powershell.exe 107 PID 5500 wrote to memory of 5676 5500 powershell.exe 108 PID 5500 wrote to memory of 5676 5500 powershell.exe 108 PID 5500 wrote to memory of 5676 5500 powershell.exe 108 PID 5500 wrote to memory of 5684 5500 powershell.exe 109 PID 5500 wrote to memory of 5684 5500 powershell.exe 109 PID 5500 wrote to memory of 5684 5500 powershell.exe 109 PID 5500 wrote to memory of 2268 5500 powershell.exe 110 PID 5500 wrote to memory of 1408 5500 powershell.exe 111 PID 5500 wrote to memory of 1408 5500 powershell.exe 111 PID 5500 wrote to memory of 1408 5500 powershell.exe 111 PID 5500 wrote to memory of 5984 5500 powershell.exe 112 PID 5500 wrote to memory of 5976 5500 powershell.exe 113 PID 5500 wrote to memory of 5712 5500 powershell.exe 114 PID 5500 wrote to memory of 5712 5500 powershell.exe 114 PID 5500 wrote to memory of 5712 5500 powershell.exe 114 PID 5500 wrote to memory of 5044 5500 powershell.exe 115 PID 5500 wrote to memory of 3432 5500 powershell.exe 116 PID 5500 wrote to memory of 3432 5500 powershell.exe 116 PID 5500 wrote to memory of 3432 5500 powershell.exe 116 PID 5500 wrote to memory of 1792 5500 powershell.exe 117 PID 5500 wrote to memory of 1792 5500 powershell.exe 117 PID 5500 wrote to memory of 1792 5500 powershell.exe 117 PID 5500 wrote to memory of 696 5500 powershell.exe 118 PID 5500 wrote to memory of 696 5500 powershell.exe 118 PID 5500 wrote to memory of 696 5500 powershell.exe 118 PID 5500 wrote to memory of 2888 5500 powershell.exe 119 PID 5500 wrote to memory of 708 5500 powershell.exe 120 PID 5500 wrote to memory of 708 5500 powershell.exe 120 PID 5500 wrote to memory of 708 5500 powershell.exe 120 PID 5500 wrote to memory of 3436 5500 powershell.exe 121 PID 5500 wrote to memory of 2084 5500 powershell.exe 122 PID 5500 wrote to memory of 5080 5500 powershell.exe 123 PID 5500 wrote to memory of 2772 5500 powershell.exe 124 - outlook_office_path 1 IoCs
description ioc Process Key enumerated \REGISTRY\USER\S-1-5-21-189034102-168398478-1159367937-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook SearchProtocolHost.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\NYMPH_THETIS_MAIN_VSL_PARTICULARSpdf.js1⤵
- Badlisted process makes network request
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3720 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_72Trtu5VOOFl_1786939654803.ps1"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5500 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5788
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:4824
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:3416
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5412
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5964
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
PID:1696
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:5852
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:4960
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1204
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5416
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:3244
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1076
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:5720
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:3624
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:5676
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:5684
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:2268
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1408
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5984
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5976
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:5712
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5044
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:3432
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:1792
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:696
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:2888
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:708
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:3436
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:2084
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:5080
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:2772
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:4540
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C:\Windows\SysWOW64\SearchProtocolHost.exe"C:\Windows\SysWOW64\SearchProtocolHost.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
- outlook_office_path
PID:2232 -
C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:2848
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C:\Windows\System32\taskkill.exe"C:\Windows\System32\taskkill.exe" /f /im wscript.exe2⤵
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:4792
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Temp\ps_72Trtu5VOOFl_1786939654803.ps1
- Size 2.2MB
- SHA256 3077b8f89ba1ac1bc0ddefac3d13cb501bbd4a9226b26a7a6dbd6205cf67e14e
- MD5 90e2eb99f291fd594485c792e075b8e1
- SHA1 b0f1eeaff45a648c633ee5eba12f453a9e5b6315
- SHA512 545b400c8bf6094145b819a54504d0ece1085632f5374f6ade788dc9ede21e3c868fe622ed68da3b1a3c414de3157fd2cabfa8d114bcd9e9892b7628937ab902
- SSDEEP 24576:BxRvCPefyLyOqnchaOR4H1ilG3nBBGPN6qFRtg7LSWlM4Q/S3/Ipo3d:V
- TLSH T15EA568225D103F9E029F2D5EEA4EFDB81E55E2C6546CF6D1A40888F18133698BD1ECE7
- MD5 SHA1 SHA512 SSDEEP TLSH