Analysis

  • max time kernel
    118s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2025, 20:23

General

  • Target

    SecuriteInfo.com.FileRepMalware.4983.32651.msi

  • Size

    1.9MB

  • MD5

    8f3d48e04ed35dd4c367f28ba5534035

  • SHA1

    fe0a4fe18351a6008b6b3f4d106fdbea2fe3f83c

  • SHA256

    1c043deab7eb16e8221cb52312ff5322b83a6cb49fabbf26c294d57ae3246623

  • SHA512

    54a717fa94d8b48dcf67d1d907c3ea7e81c11fe6893da2c7fd93223a776bd661c95aba8857dbcb670034b11e56e21308e98cdb95f8e3fe29ee3e56500ed4d1a0

  • SSDEEP

    24576:vt9cpVDhqmzZnqWmYzNPu2l5GMLEk0ri7Vo7D:4pRhq8ZNzNm2lLEk0oi

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 1 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 Windows directory 10 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 22 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\SecuriteInfo.com.FileRepMalware.4983.32651.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:3052
  • 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:2748
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DCA58EBADF1B91DCF415F8BB9963F303
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1276
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-85c66a9a-4b70-4ba2-99be-7b62feec63f2\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1708
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:2576
      • C:\Users\Admin\AppData\Local\Temp\MW-85c66a9a-4b70-4ba2-99be-7b62feec63f2\files\setup5917.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-85c66a9a-4b70-4ba2-99be-7b62feec63f2\files\setup5917.exe" /VERYSILENT /VERYSILENT
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2156
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2876
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003CC" "0000000000000060"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2612

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-85c66a9a-4b70-4ba2-99be-7b62feec63f2\files.cab

    Filesize

    1.6MB

    MD5

    76ac63f753468e2929373de7214326e7

    SHA1

    7beb1ab0a4e8cee4b85c31452b97697d9ee62c9e

    SHA256

    4b37299c9fba34ec4e439e8e174cf9787540df36bf7f95f23a2bd0f6a25ed9cb

    SHA512

    bc06b82cc2efd39a46b2a6d347b3afb89152835b77ed602a5b4dea2357add8867ba623533fe5752ec76a1e6ff05150eb460437fe32f9a4ed05679c0fc75a0b9e

  • C:\Users\Admin\AppData\Local\Temp\MW-85c66a9a-4b70-4ba2-99be-7b62feec63f2\msiwrapper.ini

    Filesize

    1KB

    MD5

    8535a3d52e594f632fde188bac23a463

    SHA1

    ba6521f38dd5eb06d71c6bc1ebbb805f81ae6928

    SHA256

    b6d37640bf2ba3f298e034e86a99d4680b1a21e0092db2993879e6e70176bdb2

    SHA512

    9bc0ffc1158ab3f8064013a9319664148ffc314a4e545b73cf56a25758869317876f1e0a6b06b3fd2f1067b7f555833fe40ebae35ae6f93144c334883a095190

  • C:\Users\Admin\AppData\Local\Temp\MW-85c66a9a-4b70-4ba2-99be-7b62feec63f2\msiwrapper.ini

    Filesize

    1KB

    MD5

    09eebd705bea367c03ec2cb852c0b3e4

    SHA1

    5320324407d01d16aba25fb6109622322ad371b3

    SHA256

    6153db079b9d12921c6a16bbe5e7fa2399637413dea8e471e71e9a23b76069e5

    SHA512

    411a5496bb6d747a2bc8079c21c360f7789eca2021f6e7367e537d6826ec056d5ac6d82f42db417993ce7e65113e2b2295c552553a6555442df6940f93055d12

  • C:\Windows\Installer\MSI420F.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108