Analysis

  • max time kernel
    149s
  • max time network
    93s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    17/04/2026, 04:46

General

  • Target
    2026-04-17_769733028a49bbe95164c42dd52f8aea_akira_cobalt-strike_hijackloader_rusty-stealer.exe
  • Size 7.8MB
  • Sample260417-fd23csfw2j
  • SHA256 37b27031a0e0002656a9c8d78046e0f32a157f1e4059cfbcb519f16c74fdd846
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Detects Windows exceutables bypassing UAC using CMSTP COM interfaces. MITRE (T1218.003) 3 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 3 IoCs
  • Drops file in Program Files directory 56 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 26 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.

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3116
    • C:\Users\Admin\AppData\Local\Temp\2026-04-17_769733028a49bbe95164c42dd52f8aea_akira_cobalt-strike_hijackloader_rusty-stealer.exe
      "C:\Users\Admin\AppData\Local\Temp\2026-04-17_769733028a49bbe95164c42dd52f8aea_akira_cobalt-strike_hijackloader_rusty-stealer.exe"
      2⤵
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Users\Admin\Videos\Symbiote.exe
        C:\Users\Admin\Videos\Symbiote.exe
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4296
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          powershell.exe -c Add-MpPreference -ExclusionProcess "C:\Users\Admin\Videos\Symbiote.exe"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4872
        • C:\Users\Admin\Videos\Symbiote.exe
          "C:\Users\Admin\Videos\Symbiote.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1172
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            powershell.exe -c Add-MpPreference -ExclusionProcess "C:\Users\Admin\Videos\Symbiote.exe"
            5⤵
            • Command and Scripting Interpreter: PowerShell
            • Drops file in System32 directory
            • Modifies data under HKEY_USERS
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5068
  • C:\Users\Admin\Videos\Symbiote.exe
    C:\Users\Admin\Videos\Symbiote.exe
    1⤵
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1748
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -c Add-MpPreference -ExclusionProcess "C:\Users\Admin\Videos\Symbiote.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:576
    • C:\Users\Admin\Videos\Symbiote.exe
      "C:\Users\Admin\Videos\Symbiote.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:3708
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -c Add-MpPreference -ExclusionProcess "C:\Users\Admin\Videos\Symbiote.exe"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Drops file in System32 directory
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1688

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        powershell.exe.log

        • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
        • Size 4KB
        • SHA256 e27390d57580e3dfba07bec3d8e430203bbc91e90f6937079b3fd52abc721bd4
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 c8d4bf0af7143157dd6346ebce738cec90d00493cc5edcb63c0ce4c780511eab
        • MD5 SHA1 SHA512 TLSH

        __PSScriptPolicyTest_jgkglhv2.doe.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_jgkglhv2.doe.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512 TLSH

        PEStub.dll

        • Path C:\Users\Admin\Videos\PEStub.dll
        • Size 59KB
        • SHA256 5aab76737f2d9f6e6d4d225b12e1123918306d86f1ba5e0f629f97fd3f9710d1
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Phosphoric.dll

        • Path C:\Users\Admin\Videos\Phosphoric.dll
        • Size 868KB
        • SHA256 bbbf9287cbac6a35d66cd0ac5744298a62b1934cbc8cf2292e3f1efd43ab22fa
        • MD5 SHA1 SHA512 SSDEEP TLSH

        PsPInjector.dll

        • Path C:\Users\Admin\Videos\PsPInjector.dll
        • Size 21KB
        • SHA256 dd93e8ae016728ffcfd0dde17e67768357f909d9b09e73919838b394960f1a8f
        • MD5 SHA1 SHA512 SSDEEP TLSH

        Symbiote.exe

        • Path C:\Users\Admin\Videos\Symbiote.exe
        • Size 781KB
        • SHA256 dd822836313f979e21c86489d4b2a95a68c258baccb3abdce736d298a2c7ad14
        • MD5 SHA1 SHA512 SSDEEP TLSH

        StartupProfileData-NonInteractive

        • Path C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
        • Size 1KB
        • SHA256 c82f2726f8ce51fc0d84eb392397b748700470a79032acae4a60c63d1067edcb
        • MD5 SHA1 SHA512 TLSH

        memory/576-271-0x000001ECF4A10000-0x000001ECF4A22000-memory.dmp

        memory/576-270-0x000001ECDC750000-0x000001ECDC75C000-memory.dmp

        memory/1688-276-0x000001A30DBD0000-0x000001A30DBE2000-memory.dmp

        memory/1688-275-0x000001A30C280000-0x000001A30C28C000-memory.dmp

        memory/2620-278-0x00007FF6705B0000-0x00007FF670D8D000-memory.dmp

        memory/2620-252-0x0000000140000000-0x000000014037C000-memory.dmp

        memory/2620-0-0x0000000180000000-0x00000001800DD000-memory.dmp

        memory/2620-14-0x00007FF6705B0000-0x00007FF670D8D000-memory.dmp

        memory/3116-34-0x00000000014A0000-0x00000000014A1000-memory.dmp

        memory/3116-26-0x00000000014B0000-0x00000000014B1000-memory.dmp

        memory/4872-161-0x000002343EBC0000-0x000002343EBCA000-memory.dmp

        memory/4872-52-0x000002343EBB0000-0x000002343EBBA000-memory.dmp

        memory/4872-169-0x000002343EC10000-0x000002343EC1A000-memory.dmp

        memory/4872-165-0x000002343EBD0000-0x000002343EBD8000-memory.dmp

        memory/4872-164-0x000002343EC20000-0x000002343EC3A000-memory.dmp

        memory/4872-59-0x000002343EBE0000-0x000002343EBFC000-memory.dmp

        memory/4872-16-0x000002343E930000-0x000002343E940000-memory.dmp

        memory/4872-166-0x000002343EC00000-0x000002343EC06000-memory.dmp

        memory/4872-17-0x000002343E930000-0x000002343E940000-memory.dmp

        memory/4872-43-0x000002343EAF0000-0x000002343EBA3000-memory.dmp

        memory/4872-269-0x00000234266D0000-0x00000234266E2000-memory.dmp

        memory/4872-268-0x0000023424B00000-0x0000023424B0C000-memory.dmp

        memory/4872-42-0x000002343EAD0000-0x000002343EAEC000-memory.dmp

        memory/4872-25-0x000002343EA40000-0x000002343EA62000-memory.dmp

        memory/5068-267-0x000001E6E2380000-0x000001E6E2392000-memory.dmp

        memory/5068-266-0x000001E6E22C0000-0x000001E6E22CC000-memory.dmp