Analysis
- max time kernel
149s - max time network
115s - platform
windows11-21h2_x64 - resource
win11-20260130-en - resource tags
arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows - submitted
23/04/2026, 18:34
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
rRFQ2026-BE.exe
Resource
win10v2004-20260130-en
11 signatures
150 seconds
General
- Target rRFQ2026-BE.exe
- Size 956KB
- Sample260423-w71dmafs8t
- SHA256 042f6d8fff507d22bc7a6c7568cfdb9fb48cd9fe1c0eca4c6982f58e22b63dd8
- MD5 0dd0daec1e4709645aa5d82b32c4e539
- SHA1 13f77564c98e3abc46e0c87d0c0cbf04251bb55e
- SHA512 ad49bea2d182c1351e7db123c5f7519d9f6a7f4fb79324dfbb6459014982e14dd9bc9be9cc56f068a0b5449f91e48d8b22c86303f5b76fc8c3d1cf3a4900ae42
- SSDEEP 24576:dO/96nOGyrubkxk7w+5IEmmAMDVf4fGho0e7o:kEErLYwtShOGh4E
- TLSH T1A12523A99A21D993CCD15BF219B1E7B007564E4EF400C31BDEEDACEF7D6829624346E0
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Signatures
- Formbook payload 2 IoCs
resource yara_rule behavioral2/memory/4292-13-0x0000000001650000-0x0000000001696000-memory.dmp family_formbook behavioral2/memory/4292-59-0x0000000001650000-0x0000000001696000-memory.dmp family_formbook - Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 3448 powershell.exe - SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
resource yara_rule behavioral2/memory/3088-6-0x0000000005C80000-0x0000000005C92000-memory.dmp SmartAssembly - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3088 set thread context of 4292 3088 rRFQ2026-BE.exe 82 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 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 rRFQ2026-BE.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 4292 rRFQ2026-BE.exe 3448 powershell.exe 4292 rRFQ2026-BE.exe 3448 powershell.exe 4292 rRFQ2026-BE.exe 4292 rRFQ2026-BE.exe 4292 rRFQ2026-BE.exe 4292 rRFQ2026-BE.exe 4292 rRFQ2026-BE.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3448 powershell.exe - Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 3088 wrote to memory of 3448 3088 rRFQ2026-BE.exe 80 PID 3088 wrote to memory of 4292 3088 rRFQ2026-BE.exe 82 PID 3088 wrote to memory of 4292 3088 rRFQ2026-BE.exe 82 PID 3088 wrote to memory of 4292 3088 rRFQ2026-BE.exe 82
Processes
-
C:\Users\Admin\AppData\Local\Temp\rRFQ2026-BE.exe"C:\Users\Admin\AppData\Local\Temp\rRFQ2026-BE.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3088 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\rRFQ2026-BE.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3448
-
-
C:\Users\Admin\AppData\Local\Temp\rRFQ2026-BE.exe"C:\Users\Admin\AppData\Local\Temp\rRFQ2026-BE.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
PID:4292
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lfonllkd.eiq.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- TLSH T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
- MD5 SHA1 SHA512 TLSH