Analysis

  • max time kernel
    120s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    13/01/2024, 01:20

General

  • Target

    Zenith.msi

  • Size

    4.8MB

  • MD5

    db46881cd32a09fa8c8c4a39d647f3d0

  • SHA1

    56354ab0953ab57ab6c681d0bb4c1078cbfea4ad

  • SHA256

    0e3039b46cb8212e4787ca372d313cfc70a830cacbd54c80444574daeb26c77c

  • SHA512

    bbe6a41f4e507e2137227fb7ff91c3c3791a1436ea1d6498d81310037536fc4716f58cf3db43d7443eeed6b212cff9140773893eb1d31afe9195530484b7ca38

  • SSDEEP

    98304:IZ6HW4qRS1LAib59iUPhYCFZCJLyDcbt0hpkvmZOQL07rjA:IZ6xkeLJiUPhdZCccbMOX

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 7 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 11 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Modifies registry class 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Zenith.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1856
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2264
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 71AAA429C0DFAD741734B2CE394327C2 C
      2⤵
      • Loads dropped DLL
      PID:2820
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -NoProfile -windowstyle hidden try { [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12 } catch {}; Invoke-WebRequest -Uri "https://go.microsoft.com/fwlink/p/?LinkId=2124703" -OutFile "$env:TEMP\MicrosoftEdgeWebview2Setup.exe" ; Start-Process -FilePath "$env:TEMP\MicrosoftEdgeWebview2Setup.exe" -ArgumentList ('/silent', '/install') -Wait
      2⤵
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      PID:1356
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
      PID:2908
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005A8" "00000000000005C8"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:2988

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files\Zenith\Zenith.exe

            Filesize

            325KB

            MD5

            481a52ee2baa90d6335e7c64a4017d2f

            SHA1

            298f8934dc6437452839a1adaff2a5c222526210

            SHA256

            9808dcf9e0eeeb70e44f893a7e36334b04ed359d3d87be20f9bbfb8b095d145b

            SHA512

            a1c8614cc8ddcc0e5251b4298d25a793eee57a684b00b3c821d5a05ba78e75936238cec1679c695a213b70ec31c151d842623767c5c992947b63414822166ae5

          • C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Zenith\Zenith.lnk

            Filesize

            1KB

            MD5

            c1af8709bc3d5782b26d622a2dd2b80f

            SHA1

            8bacc63b9d8e6bf9e2c0e521f168eeb1edb61acc

            SHA256

            44b88376bf1f96ebf0171d6b1d409d863ed6a76c7f92aa1d21fe18f1c40ffd4d

            SHA512

            8b6cdeca9856a718443bc060b29e136b5ea7cc639f72a652de466e69c3ea7612735904a92b63486c85ca14119062ec6be21966e80c9424ee3c832427bb42753e

          • C:\Users\Admin\AppData\Local\Temp\MSI5457.tmp

            Filesize

            113KB

            MD5

            4fdd16752561cf585fed1506914d73e0

            SHA1

            f00023b9ae3c8ce5b7bb92f25011eaebe6f9d424

            SHA256

            aecd2d2fe766f6d439acc2bbf1346930ecc535012cf5ad7b3273d2875237b7e7

            SHA512

            3695e7eb1e35ec959243a91ab5b4454eb59aeef0f2699aa5de8e03de8fbb89f756a89130526da5c08815408cb700284a17936522ad2cad594c3e6e9d18a3f600

          • \Program Files\Zenith\Zenith.exe

            Filesize

            878KB

            MD5

            602d2d46c5fbe82d316a2629a48274a4

            SHA1

            e637c785dfc5f921f9fab5d897b0f190d42a4a42

            SHA256

            8d050cdcdb117c327c8c12741ea2554cb57a096e5edd80ec22b4b5ab15a65df4

            SHA512

            c56f9e1113a0ecf44f099489acfbc2c9742ac688599227842fb19e13a6449e8321c68d3e9dc69527711e060823cc1d0fca7467486348b28f11adffd708ee3729

          • \Program Files\Zenith\Zenith.exe

            Filesize

            701KB

            MD5

            9afe8964d29981f942fc5c29d36ebf34

            SHA1

            92f6ed58caa9040462226aa1aff71e136aaa1e1a

            SHA256

            c02ab469a0955c1807d3837c52305139c37dc024040fe36c25ba351877606d05

            SHA512

            ef23c8f5cf2bc4b236955bec3d374389985037a55bbb9f9f3429efb26893b8d7cc690162641aa41d2958f450dba55daf50314d9f370d92ef1a7f446c7ff624b5

          • \Program Files\Zenith\Zenith.exe

            Filesize

            287KB

            MD5

            e60bc94e85b47c6bfcf72f332b65286f

            SHA1

            c360e889d732ca4a9be214c932cecae2607c3e1b

            SHA256

            3e9f78963b5a521529c33ec91494329ebcd377ab3e5b2a5f4ccb9f88554d90bb

            SHA512

            5988cc510ba7bcc53e295f579c6be26cf6e201bde61bdd935a6eeeb7b24bd302a05341e0822e9ac33622cf5a0c3a829e65d7b0c23c3dae53bb8bf259db80bdd2

          • \Program Files\Zenith\Zenith.exe

            Filesize

            374KB

            MD5

            ac6bf9089be3f24bacfac8cc8708b3fa

            SHA1

            13f6e3610bbc88cab3b6c8ee5fa0518265f04946

            SHA256

            c61016f691f08fb0e155dd1b58b77ca1758e5c74093b06daa91c0ab8e0c07168

            SHA512

            df8711b83496de7cb498fd31e948c9906783ae5e9a56bd5962eee6a48d057d8b2031a2cc1a535fd1659dd1299fbd19acb300741e1eebab80325bf0c9b340016c

          • \Program Files\Zenith\Zenith.exe

            Filesize

            289KB

            MD5

            63aae5b30467464ffb4039d3a2dcd21e

            SHA1

            887332f7da014f91fd42ce2c8b09cae150623af7

            SHA256

            25936159683b0c114093a8df40b08618c3132ecc8baaab0e2451819d809e2c1e

            SHA512

            0b630bb53cca5625d8cf98febbcb24fd30c609428319319453801881a93b7a14ecdad24f9587bdcccf5332ea3bfa7b5d9b2a4572ef0bfc5d4ce10288d168412e

          • \Program Files\Zenith\Zenith.exe

            Filesize

            169KB

            MD5

            94718da1f81a3ba47a7646e9d9801f45

            SHA1

            a6785986e8e674a0dee1a32a626cb5614f90be86

            SHA256

            91a1d9086b071f19bfb274ed7412946f9ae61377062941ac403380ea7f2dd13e

            SHA512

            70881122b3d7b04b3a5f47f333e6594696710fdd9a0a0af6b425c30cf5146c37aaa250b8e5f07dff89b50af56eb25ed5e0fbca25b1cb628486401de2c328296d

          • memory/1356-44-0x000007FEF4FB0000-0x000007FEF594D000-memory.dmp

            Filesize

            9.6MB

          • memory/1356-45-0x00000000028C0000-0x0000000002940000-memory.dmp

            Filesize

            512KB

          • memory/1356-46-0x00000000028C0000-0x0000000002940000-memory.dmp

            Filesize

            512KB

          • memory/1356-41-0x0000000002360000-0x0000000002368000-memory.dmp

            Filesize

            32KB

          • memory/1356-51-0x00000000028C0000-0x0000000002940000-memory.dmp

            Filesize

            512KB

          • memory/1356-43-0x00000000028C0000-0x0000000002940000-memory.dmp

            Filesize

            512KB

          • memory/1356-42-0x000007FEF4FB0000-0x000007FEF594D000-memory.dmp

            Filesize

            9.6MB

          • memory/1356-40-0x000000001B250000-0x000000001B532000-memory.dmp

            Filesize

            2.9MB

          • memory/1356-52-0x000007FEF4FB0000-0x000007FEF594D000-memory.dmp

            Filesize

            9.6MB