Analysis

  • max time kernel
    117s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 02:53

General

  • Target

    aa283d1f02c6d3c83dcc1665e9944ed54705e6c46132276c3db208d043e6ca34.msi

  • Size

    1.9MB

  • MD5

    8b77331198791037f336022ef7e269d2

  • SHA1

    c48ddd7547eec8417b295bcd00cbac3c34bd175b

  • SHA256

    aa283d1f02c6d3c83dcc1665e9944ed54705e6c46132276c3db208d043e6ca34

  • SHA512

    d841c91694094cbb1ea9b6f282748ec994c6bd0af3d037831481b9713c28dd8ae79149b93b7a30d2bcdde7875b42ad102ea81de6f99e6c4dd5f25ae7b5d947e5

  • SSDEEP

    24576:ht9cpVDhXukQS9k2+y4csX3+4OkoorlvRaLicTOUKX:WpRhX5VxP4XO4OKrPaLNazX

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\aa283d1f02c6d3c83dcc1665e9944ed54705e6c46132276c3db208d043e6ca34.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2668
  • 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:2820
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding DBAD0EC71CCFF515F471B6DC8CA43203
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2832
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-b1e6201d-2a5a-42cd-88ed-0d22fe4fca75\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1056
      • 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:712
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start msedge https://www.docusign.com/sites/default/files/Signature_Appliance_Client_Guide_8.0.pdf
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1672
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-b1e6201d-2a5a-42cd-88ed-0d22fe4fca75\files"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2300
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-b1e6201d-2a5a-42cd-88ed-0d22fe4fca75\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1136
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2728
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000002F8" "00000000000005A8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-b1e6201d-2a5a-42cd-88ed-0d22fe4fca75\files.cab

    Filesize

    1.6MB

    MD5

    809337e8fba896e6c6be38773398afd5

    SHA1

    f1cf29e8175ba87b9b28a02dca9e5fb09f175027

    SHA256

    6b956a5c80beb1085c7bb11f6386b31b718bbf59c59ee8bd83de2c0febe90aa3

    SHA512

    4edf0a07ecb49a0af6b06621c06221e2fe5d48808cc305b59d4142c990474543bce0c6fb99677257a3dede9c6edcbaa8e613af31c3ad0cf0c21576a783ee19f2

  • C:\Users\Admin\AppData\Local\Temp\MW-b1e6201d-2a5a-42cd-88ed-0d22fe4fca75\msiwrapper.ini

    Filesize

    1KB

    MD5

    1661afbf9ebfc83dc187aeb68eb8358d

    SHA1

    00690500560fc4a6b0f4c5a60022ddf5db23a9a4

    SHA256

    7e5992e58319e390d9b70e52cca6b7053bbddccc4a6a9177bffabd8d508826e7

    SHA512

    686f1b307e9153b4ea66e15ad4d02d767bdcd895100314455d8a515b1f8c7f719bce1473efea2969b1a5df7ab0896c4bdad241445fde5665a9a1c81bcbd2545d

  • C:\Users\Admin\AppData\Local\Temp\MW-b1e6201d-2a5a-42cd-88ed-0d22fe4fca75\msiwrapper.ini

    Filesize

    1KB

    MD5

    b94c533d55fb6236ff5e44b8f7b5bbe0

    SHA1

    62b99c48c8d87572829d4e2b92f00449a98ba992

    SHA256

    209aa9131b3cfd0f388837b81ae516c6f54bd6df5386990b619c0440d24f5f9d

    SHA512

    a5199bd3a06cd382f648ec946c271926e2b6bd19bd06112ca888e3bc2238154a858674805d9a16f0c88194b3d0015cec892b773e43d4e3899542f336cef2b386

  • C:\Windows\Installer\MSIA3E.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108