Analysis

  • max time kernel
    60s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 15:20

General

  • Target

    install.msi

  • Size

    1.9MB

  • MD5

    adf228ff4de5e49ddd9ce6612da9f54b

  • SHA1

    1c9710dd7a63fc0887409da1956cdfd5d0d7aa08

  • SHA256

    3c41f52f95e7064c9fb86253181534a827a755d82c6b9597d4d067c9596f1994

  • SHA512

    e9344528e64aa7b5668f258dbef0e5a0f5f5faaa372ab35dcf0f4b639ed05bb2c8d234b33950e761f02a26f10f8f5c5d3f731c98c438308c3819ca1621e4af14

  • SSDEEP

    24576:Yt9cpVDhyji6D67In+B8aGLFm2H38d0NvWKD3pUvi8H5:XpRhyO6DKOytKl31KK8H5

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 2 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 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 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 2 IoCs
  • Suspicious use of WriteProcessMemory 27 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\install.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1040
  • 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:3012
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 5CDDC133D9D78E17E10BC991D0BBD0B1
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:440
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-d91e95eb-f723-4d07-907d-8a660facfe3c\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2832
      • 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:1168
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start msedge https://www.ups.com/media/en/UPS_dev_kit_user_guide.pdf
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1908
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-d91e95eb-f723-4d07-907d-8a660facfe3c\files"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2240
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-d91e95eb-f723-4d07-907d-8a660facfe3c\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:296
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2596
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000560" "00000000000005A0"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2740

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-d91e95eb-f723-4d07-907d-8a660facfe3c\files.cab

    Filesize

    1.6MB

    MD5

    dfa43908a41275a6618a6f81d2c75ea6

    SHA1

    898a706b05e1798f7f28dc44d2494ee8bf4c65ef

    SHA256

    87f42ace101802b193d2826df334dddfac13797a07a1fa03ed05c627bae8db58

    SHA512

    1155864725642501388d9ddd7b0dbdc1eb15b0198462e89c8574fcee8d93deca864fd2958150b9970ef49debd384152f336fae2c08ec9f164cac5d5ce40952b8

  • C:\Users\Admin\AppData\Local\Temp\MW-d91e95eb-f723-4d07-907d-8a660facfe3c\msiwrapper.ini

    Filesize

    380B

    MD5

    9aabb524c6af7e979c995d8f8da98707

    SHA1

    29c6bb11f33de46b20fb6d58eae9b4cb5bd97b49

    SHA256

    7c85258c2fed66d1defd839c99447cf09da2006aed3dc8959177a69a65deaed1

    SHA512

    5a176933aa06f80500e436d483b6eb4479f96349fa6f9a698c1e153fe93ef44741b6029938c22fd10f04edadd5a4434c36eadcad6d7968e5358c43ac2d3c4b86

  • C:\Users\Admin\AppData\Local\Temp\MW-d91e95eb-f723-4d07-907d-8a660facfe3c\msiwrapper.ini

    Filesize

    1KB

    MD5

    f24c1fe95f5b4d7e372ca3272e39dc1b

    SHA1

    7a91fc418d1eaff9ff4bae0cb5855e7fabbdc93a

    SHA256

    1ac7ba70020a42b1f1ba2f48961162c82e6c9b640f95d1e77d619e28b79b877e

    SHA512

    46289e92cf52874af02762f9d493524d58f0976ae56fcca77715a5529259ea88d1fc8a9c12d5cf72bd5f3397fa46051d015523d5dbd15c93cac37dbe6b0a6f5c

  • C:\Windows\Installer\MSI9260.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108