Overview

overview

10

Static

static

load.msi

windows7_x64

10

load.msi

windows10_x64

10

Analysis

  • max time kernel
    151s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    13-10-2021 13:10

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General

  • Target

    load.msi

  • Size

    548KB

  • MD5

    dffb3d323708f624dc3469e99c3adcb3

  • SHA1

    043620bdea4fd9d48673db8081ffbd9f25d1d8ac

  • SHA256

    eceb164a69e8f79bb08099fcdf2b75071c527b0107daebc0e7a88e246b4c7f13

  • SHA512

    a30b70e5bb259410606d5e123e17b8502423912ecedf6d6ebad6b180a372c58f36231f0c85b610ad89e5328b1e63e257be932d4d3fea8971853516e31f531f84

Score
10/10
mirrorblastloaderpersistencesuricata

Malware Config

Signatures

  • MirrorBlast

    MirrorBlast is a script acting as loader for FlawedGrace RAT.

    loadermirrorblast
  • suricata: ET MALWARE MirrorBlast CnC Activity M2

    suricata: ET MALWARE MirrorBlast CnC Activity M2

    suricata
  • suricata: ET MALWARE MirrorBlast CnC Activity M3

    suricata: ET MALWARE MirrorBlast CnC Activity M3

    suricata
  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 3 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in Windows directory 7 IoCs
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies data under HKEY_USERS 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 55 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\load.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:804
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:60
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1948
    • C:\ProgramData\Local\Google\rebol-view-278-3-1.exe
      "C:\ProgramData\Local\Google\rebol-view-278-3-1.exe" -w -i -s C:\ProgramData\Local\Google\exemple.rb
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1676
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c echo %USERDOMAIN%\%USERNAME% > name && for /f "tokens=4-5 delims=. " %i in ('ver') do echo %i.%j > os && echo %PROCESSOR_ARCHITECTURE% > arch
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2120
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c ver
          4⤵
            PID:3820
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:64
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s DsmSvc
      1⤵
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:2072

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/60-117-0x00000204E1C00000-0x00000204E1C02000-memory.dmp

      Filesize

      8KB

      Download

    • memory/60-116-0x00000204E1C00000-0x00000204E1C02000-memory.dmp

      Filesize

      8KB

      Download

    • memory/804-115-0x00000223A0FE0000-0x00000223A0FE2000-memory.dmp

      Filesize

      8KB

      Download

    • memory/804-114-0x00000223A0FE0000-0x00000223A0FE2000-memory.dmp

      Filesize

      8KB

      Download