Analysis

  • max time kernel
    150s
  • max time network
    133s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250210-en
  • resource tags

    arch:x64arch:x86image:win11-20250210-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    10-02-2025 20:43

General

  • Target

    Hetairas/Vivacity.ove

  • Size

    128KB

  • MD5

    1b911424ddeb8feb6d284ab17d8444ad

  • SHA1

    8a2ecb5b78d23855e86f7d78e232482c2497c850

  • SHA256

    526786cac3bc3160f1bcce8f396e95f9a698a7cfa5f05c3319965fa9250347b0

  • SHA512

    d7935245ea41e6308e52ba38143be7d6b342642186d2c9d550f95e8af81e2322d8d90a82f07c942aa1905ef0a672fe08d4b1fb7d2c51ebd49a96f295345eb3c2

  • SSDEEP

    1536:D2FNb5L/ODKN1zKagjK23JWm73jpDmxCQcYZimTu3e1GK3jEn4vG:qFhu88vO23Jn7TpDQcYZgwl3jRvG

Malware Config

Signatures

  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 7 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Downloads MZ/PE file 1 IoCs
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

  • Executes dropped EXE 10 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 33 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Modifies Internet Explorer settings 1 TTPs 24 IoCs
  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • System policy modification 1 TTPs 4 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\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\Hetairas\Vivacity.ove
    1⤵
    • Modifies registry class
    PID:4916
  • C:\Windows\system32\OpenWith.exe
    C:\Windows\system32\OpenWith.exe -Embedding
    1⤵
    • Suspicious use of SetWindowsHookEx
    PID:4636
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-PG9lbSBwcm9kdWN0X21hbnVmYWN0dXJlcj0iIiBwcm9kdWN0X25hbWU9IiIvPjxleHAgZXRhZz0iJnF1b3Q7RSt4YkF6Nlk2c1UxMjg5YlM2cWw0VlJMYmtqZkJVR1RNSnNqckhyNDRpST0mcXVvdDsiLz48YXBwIGFwcGlkPSJ7OEE2OUQzNDUtRDU2NC00NjNjLUFGRjEtQTY5RDlFNTMwRjk2fSIgdmVyc2lvbj0iMTIzLjAuNjMxMi4xMjMiIG5leHR2ZXJzaW9uPSIiIGxhbmc9ImVuIiBicmFuZD0iR0dMUyIgY2xpZW50PSIiIGluc3RhbGxhZ2U9IjAiIGluc3RhbGxkYXRldGltZT0iMTczOTE4NDAzMyIgb29iZV9pbnN0YWxsX3RpbWU9IjEzMzgzNjU1NjU2MjA2MDAwMCI-PGV2ZW50IGV2ZW50dHlwZT0iMzEiIGV2ZW50cmVzdWx0PSIxIiBlcnJvcmNvZGU9IjAiIGV4dHJhY29kZTE9IjIxNzk4NjIiIHN5c3RlbV91cHRpbWVfdGlja3M9IjUwMTkxMTM0MTUiLz48L2FwcD48L3JlcXVlc3Q-
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1632
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\MicrosoftEdge_X64_132.0.2957.140.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\MicrosoftEdge_X64_132.0.2957.140.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:3304
    • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe
      "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe" --install-archive="C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\MicrosoftEdge_X64_132.0.2957.140.exe" --msedge --verbose-logging --do-not-launch-msedge --system-level --channel=stable
      2⤵
      • Boot or Logon Autostart Execution: Active Setup
      • Executes dropped EXE
      • Installs/modifies Browser Helper Object
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3884
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff79abfa818,0x7ff79abfa824,0x7ff79abfa830
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:4440
      • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe
        "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe" --msedge --channel=stable --system-level --verbose-logging --create-shortcuts=2 --install-level=1
        3⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Drops file in Windows directory
        • Modifies data under HKEY_USERS
        • Suspicious use of WriteProcessMemory
        PID:1596
        • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe
          "C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff79abfa818,0x7ff79abfa824,0x7ff79abfa830
          4⤵
          • Executes dropped EXE
          PID:5040
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --register-package-identity --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2152
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff60b63a818,0x7ff60b63a824,0x7ff60b63a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:4328
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --remove-deprecated-packages --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:3748
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff60b63a818,0x7ff60b63a824,0x7ff60b63a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:1932
      • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --msedge --channel=stable --update-game-assist-package --verbose-logging --system-level
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:4124
        • C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --type=crashpad-handler /prefetch:4 --monitor-self-annotation=ptype=crashpad-handler --database=C:\Windows\SystemTemp\MsEdgeCrashpad --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=132.0.6834.160 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\132.0.2957.140\Installer\setup.exe" --annotation=plat=Win64 --annotation=prod=Edge --annotation=ver=132.0.2957.140 --initial-client-data=0x23c,0x240,0x244,0x218,0x248,0x7ff60b63a818,0x7ff60b63a824,0x7ff60b63a830
          4⤵
          • Executes dropped EXE
          • Drops file in Windows directory
          PID:4800

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Microsoft\EdgeUpdate\Install\{02708D39-7423-42AD-8680-E843F47F5C17}\EDGEMITMP_667A4.tmp\setup.exe

    Filesize

    6.6MB

    MD5

    b4c8ad75087b8634d4f04dc6f92da9aa

    SHA1

    7efaa2472521c79d58c4ef18a258cc573704fb5d

    SHA256

    522a25568bb503cf8b44807661f31f0921dee91d37691bf399868733205690bf

    SHA512

    5094505b33a848badcffd6b3b93aad9ad73f391e201dee052376c4f8573ba351f0b8c102131216088ffb38d0ed7b5fe70ba95c3ac2c33a50c993584fe7c435e3

  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

    Filesize

    3.7MB

    MD5

    3646786aea064c0845f5bb1b8e976985

    SHA1

    a31ba2d2192898d4c0a01511395bdf87b0e53873

    SHA256

    a129a6de7b90500483226192b260eaca1ee116a007771d421aa3eee38af48d6f

    SHA512

    145f8abf2ecffd8ecc3745dbd9ab2e360826fa46d6f21dbebece7802b9b5980f4ab19e2dfd180ce0cfb84366f3ac5c87cd1b74a085e1a0dd620b6c097900e0f4

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    73KB

    MD5

    684b6a935d7fc84356ea0533a9d114b9

    SHA1

    9ec31046838048453d7b10a8ffa6a89385c56089

    SHA256

    2bd871315f7297c0e11fd6cd3070e4677ca14633768696580e514858d2ed9844

    SHA512

    20f6ac2909b6d27c75c586c54ebeb9bc6bd6a57f4edf4bb0af9b20de59c62b0549eed250223c3761dc5c5e07741e4b8de21d861ed4f89feedfd29b909eedec4f

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    103KB

    MD5

    ce4603d76c3021db26419e1ff7e0e1d5

    SHA1

    a20d818016db9867d69343dad7cdc409c37e8ff3

    SHA256

    4bf19fd305c6f39e19b8cae317173f8c2018ba981341dd922d54e2ba5542e03b

    SHA512

    7f218e6cf165362eecf9140902a29b2e42d26372066e6aeee6eef497f7efe388862706186167ff1cb65da08c63c6ffacdf4d3208186de62b6de310270b9aa2f6

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    105KB

    MD5

    f7e974b779163f8c4e5612223580186a

    SHA1

    0000ecd6dc8d2fddb3d159bb0cfac2254e61b11b

    SHA256

    737ad0b4ee1de8d6f48407e117f3d9ffae905c278474c3422664632c45c16849

    SHA512

    231fed5420015e146848792431084a91a5ce5f2baf2d42857daa9bd2f3a8b3e3da39d74ae687d492ffff10e9bba425e7301afd3936cb005bb93eef5063f31b4d

  • C:\Windows\SystemTemp\msedge_installer.log

    Filesize

    106KB

    MD5

    356d6d793a588337a59c4fbedc305d4e

    SHA1

    8f5d43c249be5b0fa41ca6cb2994d234c7744d8d

    SHA256

    3ee1548dc3b108e3605942b4a335a42526568f522d4e79b3b56896f07be7e0b5

    SHA512

    fd9d59d5a199553e2e0a0aa539075c9707358dc4195e92d191774f16d0410ac9c3b0147a8e6911c34a0fb7683d954e8515f6e97920ff1b41c99b8b9f2ebda28c