Analysis

  • max time kernel
    149s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    08/08/2026, 02:52

General

  • Target
    2026-08-08_b63f29e7768bef83e2a6b33da764b385_akira.exe
  • Size 601KB
  • Sample260808-dcymfabc93
  • SHA256 0c9d3755f7157ee428cccc43c2497daae05b9fc3d9667ede6806356596319740
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Detects ransomware indicator 2 IoCs
  • Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell and hide display window.

  • Deletes backup catalog 3 TTPs 2 IoCs

    Uses wbadmin.exe to inhibit system recovery.

  • Drops file in Drivers directory 2 IoCs
  • Reads user/profile data of web browsers 3 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 4 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Executes a command shell one-liner 1 TTPs 2 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 2 IoCs
  • Interacts with shadow copies 3 TTPs 2 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies Control Panel 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: LoadsDriver 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 20 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 service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-08_b63f29e7768bef83e2a6b33da764b385_akira.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-08_b63f29e7768bef83e2a6b33da764b385_akira.exe"
    1⤵
    • Drops file in Drivers directory
    • Adds Run key to start application
    • Sets desktop wallpaper using registry
    • Modifies Control Panel
    • Suspicious use of WriteProcessMemory
    PID:3412
    • C:\Windows\system32\vssadmin.exe
      "vssadmin" delete shadows /all /quiet
      2⤵
      • Interacts with shadow copies
      PID:3548
    • C:\Windows\System32\Wbem\wmic.exe
      "wmic" shadowcopy delete
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2020
    • C:\Windows\system32\bcdedit.exe
      "bcdedit" /set {default} recoveryenabled No
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:4476
    • C:\Windows\system32\bcdedit.exe
      "bcdedit" /set {default} bootstatuspolicy ignoreallfailures
      2⤵
      • Modifies boot configuration data using bcdedit
      PID:4572
    • C:\Windows\system32\wbadmin.exe
      "wbadmin" delete catalog -quiet
      2⤵
      • Deletes backup catalog
      PID:4300
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\wupd_init.ps1
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Sets desktop wallpaper using registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:6840
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\jiqijsgr\jiqijsgr.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:552
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESB800.tmp" "c:\Users\Admin\AppData\Local\Temp\jiqijsgr\CSCAB32250C9B884452A16BF1B16398D9C2.TMP"
          4⤵
            PID:5712
      • C:\Windows\system32\cmd.exe
        "cmd" /c C:\Users\Admin\AppData\Local\Temp\wupd_gc.bat
        2⤵
        • Executes a command shell one-liner
        • Suspicious use of WriteProcessMemory
        PID:6932
        • C:\Windows\system32\timeout.exe
          timeout /t 3 /nobreak
          3⤵
          • Delays execution with timeout.exe
          PID:2832
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1368
    • C:\Windows\system32\wbengine.exe
      "C:\Windows\system32\wbengine.exe"
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4792
    • C:\Windows\System32\vdsldr.exe
      C:\Windows\System32\vdsldr.exe -Embedding
      1⤵
        PID:3436
      • C:\Windows\System32\vds.exe
        C:\Windows\System32\vds.exe
        1⤵
        • Checks SCSI registry key(s)
        PID:1980
      • C:\Users\Admin\AppData\Local\Temp\2026-08-08_b63f29e7768bef83e2a6b33da764b385_akira.exe
        C:\Users\Admin\AppData\Local\Temp\2026-08-08_b63f29e7768bef83e2a6b33da764b385_akira.exe
        1⤵
        • Drops file in Drivers directory
        • Adds Run key to start application
        • Sets desktop wallpaper using registry
        • Modifies Control Panel
        • Suspicious behavior: RenamesItself
        • Suspicious use of WriteProcessMemory
        PID:384
        • C:\Windows\system32\vssadmin.exe
          "vssadmin" delete shadows /all /quiet
          2⤵
          • Interacts with shadow copies
          PID:6080
        • C:\Windows\System32\Wbem\wmic.exe
          "wmic" shadowcopy delete
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          PID:6088
        • C:\Windows\system32\bcdedit.exe
          "bcdedit" /set {default} recoveryenabled No
          2⤵
          • Modifies boot configuration data using bcdedit
          PID:6104
        • C:\Windows\system32\bcdedit.exe
          "bcdedit" /set {default} bootstatuspolicy ignoreallfailures
          2⤵
          • Modifies boot configuration data using bcdedit
          PID:6116
        • C:\Windows\system32\wbadmin.exe
          "wbadmin" delete catalog -quiet
          2⤵
          • Deletes backup catalog
          PID:6132
        • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
          "powershell.exe" -NoProfile -WindowStyle Hidden -ExecutionPolicy Bypass -File C:\Users\Admin\AppData\Local\Temp\wupd_init.ps1
          2⤵
          • Command and Scripting Interpreter: PowerShell
          • Sets desktop wallpaper using registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:6800
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\1naig1vb\1naig1vb.cmdline"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:5016
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESB7F1.tmp" "c:\Users\Admin\AppData\Local\Temp\1naig1vb\CSC70FE690E973C4EE1B0C6FF169B4BD65.TMP"
              4⤵
                PID:5700
          • C:\Windows\system32\cmd.exe
            "cmd" /c C:\Users\Admin\AppData\Local\Temp\wupd_gc.bat
            2⤵
            • Executes a command shell one-liner
            • Suspicious use of WriteProcessMemory
            PID:6864
            • C:\Windows\system32\timeout.exe
              timeout /t 3 /nobreak
              3⤵
              • Delays execution with timeout.exe
              PID:6180

        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 3KB
              • SHA256 f3fa20f5a00731d1a6fddcd1918489c882369a7ff85c5de936c70ab34fac2688
              • MD5 SHA1 SHA512 TLSH

              StartupProfileData-NonInteractive

              • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
              • Size 1KB
              • SHA256 7cbe843dda39466c617dd4a3ac6b0d616ded2f7d69593da7be4c007c9cdae6a2
              • MD5 SHA1 SHA512 TLSH

              1naig1vb.dll

              • Path C:\Users\Admin\AppData\Local\Temp\1naig1vb\1naig1vb.dll
              • Size 3KB
              • SHA256 aacfe312b109507b4042507e3aa3a5eb088e625897e5e77b5e7b04090cd5145e
              • MD5 SHA1 SHA512 TLSH

              RESB7F1.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESB7F1.tmp
              • Size 1KB
              • SHA256 0b3e509fb669b561dbd7f5a0ee84b17980eb3d9634b65e348e24fa51ddd095fb
              • MD5 SHA1 SHA512 TLSH

              RESB800.tmp

              • Path C:\Users\Admin\AppData\Local\Temp\RESB800.tmp
              • Size 1KB
              • SHA256 c8e975b1ad4372781c0fa861b9fbd26aa5f29a620be91d30ac84166a520640c1
              • MD5 SHA1 SHA512 TLSH

              __PSScriptPolicyTest_dzqx5x00.fzk.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_dzqx5x00.fzk.ps1
              • Size 60B
              • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
              • MD5 SHA1 SHA512 TLSH

              jiqijsgr.dll

              • Path C:\Users\Admin\AppData\Local\Temp\jiqijsgr\jiqijsgr.dll
              • Size 3KB
              • SHA256 8dd51249b92134975b6701123059455a71bdaa245a1df485672ac5c529e20d25
              • MD5 SHA1 SHA512 TLSH

              wupd_bg.bmp

              • Path C:\Users\Admin\AppData\Local\Temp\wupd_bg.bmp
              • Size 7.9MB
              • SHA256 71b78d85eb5dd4ce9e33ed7d9d8da78f911d730f38443c69c48b2079751c9455
              • MD5 SHA1 SHA512 SSDEEP TLSH

              wupd_gc.bat

              • Path C:\Users\Admin\AppData\Local\Temp\wupd_gc.bat
              • Size 186B
              • SHA256 07ec1a5789a5372d9d192918024279443d972fb2f6b0bf9797103f4094f15028
              • MD5 SHA1 SHA512 TLSH

              wupd_init.ps1

              • Path C:\Users\Admin\AppData\Local\Temp\wupd_init.ps1
              • Size 1KB
              • SHA256 753bf1a6df9283e72a56a516f4082b0ccbae260ca1a68406642c7f9c5601bcdb
              • MD5 SHA1 SHA512 TLSH

              README_DECRYPT.txt

              • Path C:\Users\Admin\Desktop\README_DECRYPT.txt
              • Size 64B
              • SHA256 7bd23106ac7ead2c3e2783c5976ed41da0a02d86bb2e6dedcdd6c69cf5fd7372
              • MD5 SHA1 SHA512 TLSH

              1naig1vb.0.cs

              • Path \??\c:\Users\Admin\AppData\Local\Temp\1naig1vb\1naig1vb.0.cs
              • Size 196B
              • SHA256 70dfabfd1615832390e496ccb312d1f826cbf4eb57a36a6c2e337130e6449192
              • MD5 SHA1 SHA512 TLSH

              1naig1vb.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\1naig1vb\1naig1vb.cmdline
              • Size 369B
              • SHA256 145c30222eecfbe4138469f3ad1282e22c15e7e0db85e79ec3aabf874406b0cf
              • MD5 SHA1 SHA512 TLSH

              CSC70FE690E973C4EE1B0C6FF169B4BD65.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\1naig1vb\CSC70FE690E973C4EE1B0C6FF169B4BD65.TMP
              • Size 652B
              • SHA256 8b215be77d15aa09de16d412439032e838878e5b9ca72fa29fc4141835343032
              • MD5 SHA1 SHA512 TLSH

              CSCAB32250C9B884452A16BF1B16398D9C2.TMP

              • Path \??\c:\Users\Admin\AppData\Local\Temp\jiqijsgr\CSCAB32250C9B884452A16BF1B16398D9C2.TMP
              • Size 652B
              • SHA256 0e776d860ca82defa0784041e85e2c0036e026f4e95d2e2de980f19933697624
              • MD5 SHA1 SHA512 TLSH

              jiqijsgr.cmdline

              • Path \??\c:\Users\Admin\AppData\Local\Temp\jiqijsgr\jiqijsgr.cmdline
              • Size 369B
              • SHA256 e04c2cfda2e15da683bca8a36434ad7aa7b39af3c1ccc38ff59ad9eb6953e00d
              • MD5 SHA1 SHA512 TLSH

              memory/384-1467-0x00007FF6EEF50000-0x00007FF6EEFEC000-memory.dmp

              memory/3412-1470-0x00007FF6EEF50000-0x00007FF6EEFEC000-memory.dmp

              memory/6800-1515-0x000001DA649A0000-0x000001DA649A8000-memory.dmp

              memory/6800-1520-0x000001DA66A50000-0x000001DA66C6C000-memory.dmp

              memory/6840-1517-0x0000023037DE0000-0x0000023037DE8000-memory.dmp

              memory/6840-1478-0x0000023037990000-0x00000230379B2000-memory.dmp

              memory/6840-1524-0x00000230379C0000-0x0000023037BDC000-memory.dmp