Overview

overview

10

Static

static

10

2023-05-11...bi.exe

windows7-x64

1

2023-05-11...bi.exe

windows10-2004-x64

6

Analysis

  • max time kernel
    164s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/05/2023, 02:52

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General

  • Target
    2023-05-11_be059dd5f3442f498bde97f69265ccbd_revil_sodinokibi.exe
  • Size 4.5MB
  • Sample230512-dc3w6abe69
  • SHA256 93ce973daa9687f185966b3133f7003006655ec9d5bf3edb881efaf0e4fbafc7
  • MD5 SHA1 SHA512 SSDEEP
Score
6/10

Malware Config

Signatures

  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Uses Volume Shadow Copy service COM API

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

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\2023-05-11_be059dd5f3442f498bde97f69265ccbd_revil_sodinokibi.exe
    "C:\Users\Admin\AppData\Local\Temp\2023-05-11_be059dd5f3442f498bde97f69265ccbd_revil_sodinokibi.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4464
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -e RwBlAHQALQBXAG0AaQBPAGIAagBlAGMAdAAgAFcAaQBuADMAMgBfAFMAaABhAGQAbwB3AGMAbwBwAHkAIAB8ACAARgBvAHIARQBhAGMAaAAtAE8AYgBqAGUAYwB0ACAAewAkAF8ALgBEAGUAbABlAHQAZQAoACkAOwB9AA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4124
  • C:\Windows\system32\wbem\unsecapp.exe
    C:\Windows\system32\wbem\unsecapp.exe -Embedding
    1⤵
      PID:4664
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:4004

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          __PSScriptPolicyTest_ho0j3cub.pfh.ps1
          • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ho0j3cub.pfh.ps1
          • Size 60B
          • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
          • MD5 SHA1 SHA512
          Submit Download

          memory/4124-142-0x00000145FF9C0000-0x00000145FF9E2000-memory.dmp
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          memory/4124-143-0x0000014599AE0000-0x0000014599AF0000-memory.dmp
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          memory/4124-144-0x0000014599AE0000-0x0000014599AF0000-memory.dmp
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          memory/4124-145-0x0000014599AE0000-0x0000014599AF0000-memory.dmp
          Download

          memory/4124-147-0x0000014599AE0000-0x0000014599AF0000-memory.dmp
          Download

          memory/4124-146-0x0000014599AE0000-0x0000014599AF0000-memory.dmp
          Download

          memory/4124-148-0x0000014599AE0000-0x0000014599AF0000-memory.dmp
          Download