Analysis
- max time kernel
75s - max time network
487s - platform
windows10-2004_x64 - resource
win10v2004-20260911-en - resource tags
- submitted
20/10/2026, 05:43
General
- Target winhttp.dll
- Size 208KB
- Sample261020-getcaavy9l
- SHA256 14e261553c4dba16c53a50b6f1409858f7a897d1c2314e94d222273527452e34
Malware Config
Extracted
-
valleyrat_s2
-
1.0
-
47.243.109.132:5252
-
campaign_date
20261019
Signatures
- Family: ValleyRat
ValleyRat stage2 is a backdoor written in C++.
- Command and Scripting Interpreter: PowerShell 1 TTPs 5 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
- Executes dropped EXE 1 IoCs
- Loads dropped DLL 1 IoCs
- Enumerates connected drives 3 TTPs 22 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
- Browser Information Discovery 1 TTPs
Enumerate browser information.
- Direct Volume Access: Opens a physical disk for reading 1 TTPs 1 IoCs
Opens a raw handle to a physical disk, which bypasses file system access controls and is used for disk inspection, anti-VM checks and privilege checks.
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 TTPs 2 IoCs
- Suspicious use of AdjustPrivilegeToken 13 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
- Uses Volume Shadow Copy WMI provider
The Volume Shadow Copy service is used to manage backups/snapshots.
- Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
-
C:\Windows\system32\rundll32.exerundll32.exe C:\Users\Admin\AppData\Local\Temp\winhttp.dll,#11⤵
- Direct Volume Access: Opens a physical disk for reading
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -Command "Add-MpPreference -ExclusionPath 'C:\ProgramData\EdgeUpdate' -Force -ErrorAction SilentlyContinue"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
-
C:\ProgramData\EdgeUpdate\macru5u5\sxwm2qwh.exeC:\ProgramData\EdgeUpdate\macru5u5\sxwm2qwh.exe1⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: MapViewOfSection
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'explorer.exe' -Force -ErrorAction SilentlyContinue"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'Thunder.exe' -Force -ErrorAction SilentlyContinue"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'RuntimeBroker.exe' -Force -ErrorAction SilentlyContinue"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell.exe -NoProfile -Command "Add-MpPreference -ExclusionProcess 'VSPMsg.dll' -Force -ErrorAction SilentlyContinue"1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\explorer.exeexplorer.exe1⤵
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C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe"C:\Windows\SystemApps\Microsoft.Windows.StartMenuExperienceHost_cw5n1h2txyewy\StartMenuExperienceHost.exe" -ServerName:App.AppXywbrabmsek0gm3tkwpr5kwzbs55tkqay.mca1⤵
-
C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca1⤵
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
config.log
sxwm2qwh.exe
powershell.exe.log
DiscoverCacheData.dat
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
AppCache134369487921343529.txt.~tmp
__PSScriptPolicyTest_r4rvkxdl.vf3.ps1
memory/540-133-0x000001BCB0200000-0x000001BCB041C000-memory.dmp
memory/1512-91-0x00000243ED500000-0x00000243ED510000-memory.dmp
memory/1512-103-0x00000243EE100000-0x00000243EE31C000-memory.dmp
memory/1512-90-0x00000243ED500000-0x00000243ED510000-memory.dmp
memory/3292-155-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-249-0x000000000DA80000-0x000000000DAD0000-memory.dmp
memory/3292-26-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-42-0x000000000A110000-0x000000000A1E4000-memory.dmp
memory/3292-60-0x00000000016A0000-0x00000000016A1000-memory.dmp
memory/3292-79-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-80-0x0000000009830000-0x000000000985E000-memory.dmp
memory/3292-81-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-2-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-0-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-1478-0x0000000012970000-0x00000000129C0000-memory.dmp
memory/3292-1460-0x0000000011100000-0x0000000011150000-memory.dmp
memory/3292-22-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-20-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-14-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-9-0x0000000180000000-0x0000000180050000-memory.dmp
memory/3292-7-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-1345-0x0000000010D30000-0x0000000010D80000-memory.dmp
memory/3292-5-0x0000000008F70000-0x0000000008FBA000-memory.dmp
memory/3292-126-0x000000000A0C0000-0x000000000A110000-memory.dmp
memory/3292-4-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-3-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-143-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-142-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-1318-0x0000000010CE0000-0x0000000010D30000-memory.dmp
memory/3292-1214-0x0000000010F90000-0x0000000010FE0000-memory.dmp
memory/3292-162-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-157-0x000000000A190000-0x000000000A1E0000-memory.dmp
memory/3292-1-0x0000000003390000-0x00000000033BE000-memory.dmp
memory/3292-170-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-171-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-180-0x000000000A1E0000-0x000000000A230000-memory.dmp
memory/3292-197-0x000000000BDF0000-0x000000000BE40000-memory.dmp
memory/3292-195-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-228-0x000000000C770000-0x000000000C7C0000-memory.dmp
memory/3292-28-0x00000000093D0000-0x0000000009420000-memory.dmp
memory/3292-288-0x000000000D600000-0x000000000D650000-memory.dmp
memory/3292-309-0x000000000DB50000-0x000000000DBA0000-memory.dmp
memory/3292-352-0x000000000DDF0000-0x000000000DE40000-memory.dmp
memory/3292-382-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-377-0x000000000A790000-0x000000000A7E0000-memory.dmp
memory/3292-375-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-406-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-407-0x00000000099D0000-0x0000000009A06000-memory.dmp
memory/3292-433-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-428-0x0000000009B40000-0x0000000009B90000-memory.dmp
memory/3292-426-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-453-0x000000000C9E0000-0x000000000CA30000-memory.dmp
memory/3292-470-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-469-0x0000000003520000-0x0000000003556000-memory.dmp
memory/3292-512-0x000000000CA30000-0x000000000CA80000-memory.dmp
memory/3292-539-0x000000000D580000-0x000000000D5D0000-memory.dmp
memory/3292-600-0x000000000E420000-0x000000000E470000-memory.dmp
memory/3292-635-0x000000000D980000-0x000000000D9D0000-memory.dmp
memory/3292-703-0x000000000FBD0000-0x000000000FC20000-memory.dmp
memory/3292-738-0x000000000F950000-0x000000000F9A0000-memory.dmp
memory/3292-810-0x000000000FDA0000-0x000000000FDF0000-memory.dmp
memory/3292-845-0x000000000E2A0000-0x000000000E2F0000-memory.dmp
memory/3292-918-0x000000000FEA0000-0x000000000FEF0000-memory.dmp
memory/3292-960-0x0000000010150000-0x00000000101A0000-memory.dmp
memory/3292-1045-0x0000000010550000-0x00000000105A0000-memory.dmp
memory/3292-1085-0x00000000105D0000-0x0000000010620000-memory.dmp
memory/3292-1176-0x0000000010C10000-0x0000000010C60000-memory.dmp
memory/3500-113-0x000002D8F9A10000-0x000002D8F9C2C000-memory.dmp
memory/3768-88-0x0000019934800000-0x0000019934A1C000-memory.dmp
memory/3768-85-0x0000019933B30000-0x0000019933B40000-memory.dmp
memory/3768-69-0x00000199347A0000-0x00000199347C2000-memory.dmp
memory/3768-68-0x0000019933B30000-0x0000019933B40000-memory.dmp
memory/3768-67-0x0000019933B30000-0x0000019933B40000-memory.dmp
memory/3860-148-0x000001FFE2B70000-0x000001FFE2D8C000-memory.dmp