Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 07:49

General

  • Target

    5e8e046ec47d9fa95a3d94fe465ed7e1e07ff8dcd77d3cc57d647559ae6400f6.exe

  • Size

    207KB

  • MD5

    06a3c6eef03c24505b9c2152ec78380a

  • SHA1

    3dbe9afc76c4099e57df6402b199c650b1d98681

  • SHA256

    5e8e046ec47d9fa95a3d94fe465ed7e1e07ff8dcd77d3cc57d647559ae6400f6

  • SHA512

    9d3759f934ef6bf57246c49c8121f0fa5b69d9393902a5a15c7ef1e400e4682a373142a471a8100886776602ac0c3f722b2aea86d1ca57dbc0e7157237ebf58a

  • SSDEEP

    3072:EDQkrZoosbIfXJ6S6W6DW6czlhFgChaK8nqyRvd2DT3LNBvv0ArGAK0ZlljM8+7k:EDpoeLRvJD+q8lEbLfhKsVM4Cm

Score
8/10

Malware Config

Signatures

  • Sets file execution options in registry 2 TTPs 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks for any installed AV software in registry 1 TTPs 2 IoCs
  • Drops desktop.ini file(s) 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 4 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies registry class 7 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5e8e046ec47d9fa95a3d94fe465ed7e1e07ff8dcd77d3cc57d647559ae6400f6.exe
    "C:\Users\Admin\AppData\Local\Temp\5e8e046ec47d9fa95a3d94fe465ed7e1e07ff8dcd77d3cc57d647559ae6400f6.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Users\Admin\AppData\Local\Temp\5e8e046ec47d9fa95a3d94fe465ed7e1e07ff8dcd77d3cc57d647559ae6400f6.exe
      "C:\Users\Admin\AppData\Local\Temp\5e8e046ec47d9fa95a3d94fe465ed7e1e07ff8dcd77d3cc57d647559ae6400f6.exe"
      2⤵
      • Sets file execution options in registry
      • Checks for any installed AV software in registry
      • Drops desktop.ini file(s)
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious behavior: MapViewOfSection
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:912
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /CREATE /SC ONLOGON /TN "Windows Update Check - 0x16510401" /TR "C:\ProgramData\Win Audio\jtkyyvgiu.exe" /RL HIGHEST
        3⤵
        • Creates scheduled task(s)
        PID:1736
      • C:\Windows\SysWOW64\WerFault.exe
        "C:\Windows\SysWOW64\WerFault.exe"
        3⤵
          PID:1696

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\nso47EC.tmp\mozambican.dll

      Filesize

      60KB

      MD5

      b44d5800a97bbf5a60bc9c2bd41fec1d

      SHA1

      e6d359df173ec66d624c510e5ba50682556a7f61

      SHA256

      c0df69587197b0eb513582a951c2f833f0a1b80a5e2ea715722c48b1b5ea9b8f

      SHA512

      db69d9fa3ae1fd545e485a0af3ab3645692ae646701b4150e2dc1f902a4174e0bb6d615ad00d8df62f02a46f059f5c0219439e35123af511b57940d970b8e737

    • memory/900-54-0x0000000076071000-0x0000000076073000-memory.dmp

      Filesize

      8KB

    • memory/900-56-0x0000000001E50000-0x0000000001E68000-memory.dmp

      Filesize

      96KB

    • memory/912-66-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-70-0x00000000001D0000-0x000000000021B000-memory.dmp

      Filesize

      300KB

    • memory/912-60-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-57-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-62-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-63-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-64-0x000000000040120A-mapping.dmp

    • memory/912-58-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-69-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-59-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/912-71-0x00000000001D0000-0x000000000021B000-memory.dmp

      Filesize

      300KB

    • memory/912-72-0x0000000000440000-0x000000000044B000-memory.dmp

      Filesize

      44KB

    • memory/912-75-0x00000000001D0000-0x000000000021B000-memory.dmp

      Filesize

      300KB

    • memory/1696-74-0x0000000000000000-mapping.dmp

    • memory/1696-76-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/1696-77-0x00000000775D0000-0x0000000077751000-memory.dmp

      Filesize

      1.5MB

    • memory/1696-78-0x00000000000D0000-0x0000000000152000-memory.dmp

      Filesize

      520KB

    • memory/1696-79-0x00000000775D0000-0x0000000077751000-memory.dmp

      Filesize

      1.5MB

    • memory/1736-73-0x0000000000000000-mapping.dmp