Analysis
- max time kernel
298s - max time network
206s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
03/08/2026, 09:15
Static task
static1
Behavioral task
behavioral1
Sample
LOA-AD-142026944-7K.Rivera.js
Resource
win10v2004-20260513-en
17 signatures
300 seconds
Behavioral task
behavioral2
Sample
LOA-AD-142026944-7K.Rivera.js
Resource
win11ltsc2024-20260709-en
16 signatures
300 seconds
Behavioral task
behavioral3
Sample
LOA-AD-142026944-7K.Rivera.pdf
Resource
win10v2004-20260513-en
7 signatures
300 seconds
General
- Target LOA-AD-142026944-7K.Rivera.js
- Size 3.0MB
- Sample260803-k8antashma
- SHA256 cac449d38cc5ec5d21742d5551b6714379d577d15b71b9cb5f40b32c71d61506
- MD5 35cf56b0de2ac4066d2b923a8e6bcb05
- SHA1 c97b9c55d733c98f024c2fc06370670c0e2f053f
- SHA512 954ccb299607578d6a6f25a7f64ff2336d9ad9dc632fd4aa39811763aff8c85b71ae423550d0012bb43af3ba9bcc58c41677b40e3da9a586c9369ed6ec74785f
- SSDEEP 49152:80ThinSJaUQPlVeuVuftq9DYwSxZNbvXNyCMzSY7R04GnenqYAcfo+kbrRRyO9eV:S
- TLSH T104E5F6E327DEBC9748513745A80C55984F1E90604B5362AEB0CF93C4073A4AFABE5E6F
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Formbook payload 6 IoCs
resource yara_rule behavioral2/memory/2576-26-0x0000000001330000-0x0000000001376000-memory.dmp family_formbook behavioral2/memory/2576-28-0x0000000001330000-0x0000000001376000-memory.dmp family_formbook behavioral2/memory/2576-29-0x0000000001330000-0x0000000001376000-memory.dmp family_formbook behavioral2/memory/2576-34-0x0000000001330000-0x0000000001376000-memory.dmp family_formbook behavioral2/memory/1484-35-0x0000000000980000-0x00000000009C3000-memory.dmp family_formbook behavioral2/memory/1484-39-0x0000000000980000-0x00000000009C3000-memory.dmp family_formbook - Badlisted process makes network request 4 IoCs
Network request originating from process or tool commonly abused by malware.
flow pid Process 8 2624 wscript.exe 9 2624 wscript.exe 10 2624 wscript.exe 10 2624 wscript.exe - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell and hide display window.
pid Process 5000 powershell.exe - Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs
description ioc Process Key enumerated \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook wusa.exe - Suspicious use of SetThreadContext 19 IoCs
description pid Process procid_target PID 5000 set thread context of 2576 5000 powershell.exe 96 PID 2576 set thread context of 2624 2576 aspnet_compiler.exe 87 PID 2576 set thread context of 1484 2576 aspnet_compiler.exe 97 PID 5000 set thread context of 1452 5000 powershell.exe 99 PID 1484 set thread context of 2624 1484 wusa.exe 87 PID 5000 set thread context of 5492 5000 powershell.exe 101 PID 5000 set thread context of 2980 5000 powershell.exe 103 PID 5000 set thread context of 4188 5000 powershell.exe 104 PID 5000 set thread context of 3036 5000 powershell.exe 107 PID 1484 set thread context of 2616 1484 wusa.exe 105 PID 5000 set thread context of 5508 5000 powershell.exe 108 PID 5000 set thread context of 4708 5000 powershell.exe 109 PID 5000 set thread context of 572 5000 powershell.exe 110 PID 5000 set thread context of 1480 5000 powershell.exe 111 PID 5000 set thread context of 2296 5000 powershell.exe 112 PID 5000 set thread context of 5920 5000 powershell.exe 115 PID 5000 set thread context of 2692 5000 powershell.exe 116 PID 5000 set thread context of 2920 5000 powershell.exe 117 PID 5000 set thread context of 4896 5000 powershell.exe 118 - 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 wusa.exe - Kills process with taskkill 1 IoCs
pid Process 2580 taskkill.exe -
description ioc Process Key created \Registry\User\S-1-5-21-1738198120-2966725515-3980530802-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2 wusa.exe - Suspicious behavior: EnumeratesProcesses 61 IoCs
pid Process 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 2576 aspnet_compiler.exe 2576 aspnet_compiler.exe 2576 aspnet_compiler.exe 2576 aspnet_compiler.exe 5000 powershell.exe 1484 wusa.exe 1484 wusa.exe 1484 wusa.exe 1484 wusa.exe 5000 powershell.exe 1452 aspnet_compiler.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5492 aspnet_compiler.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 2980 aspnet_compiler.exe 5000 powershell.exe 4188 aspnet_compiler.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 3036 aspnet_compiler.exe 5000 powershell.exe 5508 aspnet_compiler.exe 5000 powershell.exe 4708 aspnet_compiler.exe 5000 powershell.exe 572 aspnet_compiler.exe 5000 powershell.exe 1480 aspnet_compiler.exe 5000 powershell.exe 2296 aspnet_compiler.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5000 powershell.exe 5920 aspnet_compiler.exe 5000 powershell.exe 2692 aspnet_compiler.exe 5000 powershell.exe 2920 aspnet_compiler.exe 5000 powershell.exe 4896 aspnet_compiler.exe - Suspicious behavior: MapViewOfSection 7 IoCs
pid Process 2576 aspnet_compiler.exe 2624 wscript.exe 2624 wscript.exe 1484 wusa.exe 1484 wusa.exe 1484 wusa.exe 1484 wusa.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5000 powershell.exe Token: SeDebugPrivilege 2580 taskkill.exe - Suspicious use of WriteProcessMemory 59 IoCs
description pid Process procid_target PID 2624 wrote to memory of 5000 2624 wscript.exe 89 PID 5000 wrote to memory of 4380 5000 powershell.exe 91 PID 5000 wrote to memory of 1132 5000 powershell.exe 92 PID 5000 wrote to memory of 2928 5000 powershell.exe 93 PID 5000 wrote to memory of 4304 5000 powershell.exe 94 PID 5000 wrote to memory of 2584 5000 powershell.exe 95 PID 5000 wrote to memory of 2576 5000 powershell.exe 96 PID 5000 wrote to memory of 2576 5000 powershell.exe 96 PID 5000 wrote to memory of 2576 5000 powershell.exe 96 PID 2624 wrote to memory of 1484 2624 wscript.exe 97 PID 5000 wrote to memory of 1452 5000 powershell.exe 99 PID 5000 wrote to memory of 1452 5000 powershell.exe 99 PID 5000 wrote to memory of 1452 5000 powershell.exe 99 PID 5000 wrote to memory of 4396 5000 powershell.exe 100 PID 5000 wrote to memory of 5492 5000 powershell.exe 101 PID 5000 wrote to memory of 5492 5000 powershell.exe 101 PID 5000 wrote to memory of 5492 5000 powershell.exe 101 PID 5000 wrote to memory of 2872 5000 powershell.exe 102 PID 5000 wrote to memory of 2980 5000 powershell.exe 103 PID 5000 wrote to memory of 2980 5000 powershell.exe 103 PID 5000 wrote to memory of 2980 5000 powershell.exe 103 PID 5000 wrote to memory of 4188 5000 powershell.exe 104 PID 5000 wrote to memory of 4188 5000 powershell.exe 104 PID 5000 wrote to memory of 4188 5000 powershell.exe 104 PID 1484 wrote to memory of 2616 1484 wusa.exe 105 PID 5000 wrote to memory of 3044 5000 powershell.exe 106 PID 5000 wrote to memory of 3036 5000 powershell.exe 107 PID 5000 wrote to memory of 3036 5000 powershell.exe 107 PID 5000 wrote to memory of 3036 5000 powershell.exe 107 PID 5000 wrote to memory of 5508 5000 powershell.exe 108 PID 5000 wrote to memory of 5508 5000 powershell.exe 108 PID 5000 wrote to memory of 5508 5000 powershell.exe 108 PID 5000 wrote to memory of 4708 5000 powershell.exe 109 PID 5000 wrote to memory of 4708 5000 powershell.exe 109 PID 5000 wrote to memory of 4708 5000 powershell.exe 109 PID 5000 wrote to memory of 572 5000 powershell.exe 110 PID 5000 wrote to memory of 572 5000 powershell.exe 110 PID 5000 wrote to memory of 572 5000 powershell.exe 110 PID 5000 wrote to memory of 1480 5000 powershell.exe 111 PID 5000 wrote to memory of 1480 5000 powershell.exe 111 PID 5000 wrote to memory of 1480 5000 powershell.exe 111 PID 5000 wrote to memory of 2296 5000 powershell.exe 112 PID 5000 wrote to memory of 2296 5000 powershell.exe 112 PID 5000 wrote to memory of 2296 5000 powershell.exe 112 PID 5000 wrote to memory of 4220 5000 powershell.exe 113 PID 5000 wrote to memory of 616 5000 powershell.exe 114 PID 5000 wrote to memory of 5920 5000 powershell.exe 115 PID 5000 wrote to memory of 5920 5000 powershell.exe 115 PID 5000 wrote to memory of 5920 5000 powershell.exe 115 PID 5000 wrote to memory of 2692 5000 powershell.exe 116 PID 5000 wrote to memory of 2692 5000 powershell.exe 116 PID 5000 wrote to memory of 2692 5000 powershell.exe 116 PID 5000 wrote to memory of 2920 5000 powershell.exe 117 PID 5000 wrote to memory of 2920 5000 powershell.exe 117 PID 5000 wrote to memory of 2920 5000 powershell.exe 117 PID 5000 wrote to memory of 4896 5000 powershell.exe 118 PID 5000 wrote to memory of 4896 5000 powershell.exe 118 PID 5000 wrote to memory of 4896 5000 powershell.exe 118 PID 2624 wrote to memory of 2580 2624 wscript.exe 120 - outlook_office_path 1 IoCs
description ioc Process Key enumerated \REGISTRY\USER\S-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook wusa.exe
Processes
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C:\Windows\system32\wscript.exewscript.exe C:\Users\Admin\AppData\Local\Temp\LOA-AD-142026944-7K.Rivera.js1⤵
- Badlisted process makes network request
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:2624 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_ea6LNhI6A3Mp_1785748552748.ps1"2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"3⤵PID:4380
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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:1132
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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:2928
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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:4304
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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:2584
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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:2576
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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:1452
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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:4396
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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:5492
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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:2872
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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:2980
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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:4188
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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:3044
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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:3036
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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:5508
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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:4708
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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:572
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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:1480
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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:2296
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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:4220
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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:616
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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:5920
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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:2692
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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:2920
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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:4896
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C:\Windows\SysWOW64\wusa.exe"C:\Windows\SysWOW64\wusa.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:1484 -
C:\Program Files\Mozilla Firefox\Firefox.exe"C:\Program Files\Mozilla Firefox\Firefox.exe"3⤵PID:2616
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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:2580
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Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Temp\ps_ea6LNhI6A3Mp_1785748552748.ps1
- Size 2.2MB
- SHA256 969f6a111eeb35e47185ca3c0e1ec35c0c419d228126cafb6cce72ab9dd3362d
- MD5 bcfa57b78b279db0244a29e62d6ccb8c
- SHA1 8914970958fc37b5f0aeeb9f8ee87f4b564ae9d9
- SHA512 f4f76e1753ef8fca0c1daf041c91d932f39fd0329f2dc8a45d9b82ef06e92070556a5ed5bcbf208a9d243751b7cb42b0aa25b9a6e6994ffcfbf98755eb20e493
- SSDEEP 24576:ikZjwwB0iydJNBkiE85DK3LCDLpHNAOXbrYSXajdWpJPwQKCurWWa9iFctyuSIHs:d
- TLSH T149B5A669A900BC9F223A55EFFECD4EDADA83C3A5E147FCADC612A7E2010D39C551B501
- MD5 SHA1 SHA512 SSDEEP TLSH