Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    29-07-2024 12:13

General

  • Target

    41ef278a866d57e3c81882e4ad7f6d04ae6b066cfd5632120d9ac4332d66753e.msi

  • Size

    96KB

  • MD5

    42ad49ed99c0d41a820316309bc2c3b3

  • SHA1

    f447a72b3cbea72e1b56fda8f44fd9f304b4474a

  • SHA256

    41ef278a866d57e3c81882e4ad7f6d04ae6b066cfd5632120d9ac4332d66753e

  • SHA512

    4e0af295dc656ad70361363c77646fb899a1ff4a816790959e090125bdba2089eb058dfa2b18bdcede34b45d9420b6f57c0db6aefa32f9799eccec3f163bdf75

  • SSDEEP

    1536:kiqCWq/Gf2CJ7ZrhzZr98n+lW0D80D+7fxun:xqCWqu+q8nLLxun

Malware Config

Signatures

  • 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 Windows directory 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 5 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\41ef278a866d57e3c81882e4ad7f6d04ae6b066cfd5632120d9ac4332d66753e.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:332
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Windows\system32\MsiExec.exe
      C:\Windows\system32\MsiExec.exe -Embedding 99B60E0331532463D059CF52C0C4DF2E
      2⤵
      • Loads dropped DLL
      PID:2288
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1696
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003BC" "00000000000005D8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f7718ff.rbs

    Filesize

    7KB

    MD5

    2700210874d6482cf5b77c5f7d1f0da9

    SHA1

    82df5815294aa8dd8c5bb895d80929b0d9737e6f

    SHA256

    a14957c065b7d1722ba0120692ccc8dd34370dc7e5d8c8ee2c2619ba44b0a7b3

    SHA512

    c141d1ea3dac5f421c3c2399807e7c206bd983338dca3c45f6a62a6c638a75d27bfc2940e41ad283c033f1c21425bbdcf9117e753c39a513ae84b92f205bd5d6

  • C:\Windows\Installer\MSI1A35.tmp

    Filesize

    56KB

    MD5

    91de8a79098ac3d20726e1acb50cd05d

    SHA1

    9cb04003c75f0cb63fe0c6dcd22a0c64d63154be

    SHA256

    54f8d71fb3117854743d594aa28427b943e5b2fb46f6003dbf4a9b562ebbfcea

    SHA512

    70cf1fe2c4d9b68c12b30df9013c4a1fd5b5a9fef1de704a42535259d1196b35eca6191270b19dedc4d3699b8211868b6b31a5ae3cccdc24711fb335fc32edc3

  • C:\Windows\Installer\f7718fd.msi

    Filesize

    96KB

    MD5

    42ad49ed99c0d41a820316309bc2c3b3

    SHA1

    f447a72b3cbea72e1b56fda8f44fd9f304b4474a

    SHA256

    41ef278a866d57e3c81882e4ad7f6d04ae6b066cfd5632120d9ac4332d66753e

    SHA512

    4e0af295dc656ad70361363c77646fb899a1ff4a816790959e090125bdba2089eb058dfa2b18bdcede34b45d9420b6f57c0db6aefa32f9799eccec3f163bdf75