Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    24-01-2024 23:16

General

  • Target

    8GMgV5a1fsLKxv.msi

  • Size

    4.3MB

  • MD5

    643541e25802b30249ba4fd2f549e244

  • SHA1

    df45dbb9c09775be5567cf8dd92b8bf8e77dcc43

  • SHA256

    e5e94056346367f7a8cf31fd7a2a47b4004623f1c8b74cb8f5d6ae110bef134a

  • SHA512

    8c8aa5e51f22fc9f3edf3c292b535963745599833b2041746141467a3a490ba92274dfafa27b2d896639a3ca25740261779c129c20e004daa0ea56e6937c66d8

  • SSDEEP

    49152:ipUPP9qhCxzT+WKjSXsE6wsGjXZq5+iLirfmiiiiiiiiiQg7Xgnct6NymxAiOYUI:ipUCQHsWPieI5tjT

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • 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
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • 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 31 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\8GMgV5a1fsLKxv.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2916
  • 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:2292
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding B1BA5F1527A570175732B651F8E9D9F3
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:2016
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:1672
      • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files\vlc.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files\vlc.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1760
        • \??\c:\temp\Autoit3.exe
          "c:\temp\Autoit3.exe" c:\temp\script.au3
          4⤵
          • Executes dropped EXE
          • Checks processor information in registry
          PID:2316
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files"
        3⤵
          PID:2340
        • C:\Windows\SysWOW64\ICACLS.EXE
          "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\." /SETINTEGRITYLEVEL (CI)(OI)LOW
          3⤵
          • Modifies file permissions
          PID:2332
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2768
    • C:\Windows\system32\DrvInst.exe
      DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000004A0" "00000000000004AC"
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:2676

    Network

    MITRE ATT&CK Enterprise v15

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files.cab

      Filesize

      4.0MB

      MD5

      c2271e53a3a03b0d87483d4ac6699d59

      SHA1

      e9a6ab1c3fa3ab19c70508c03677a8caef65c5b4

      SHA256

      29d7e4bf488c2f8951002648a6233b63df30e771cf03481195fca4580ebd8927

      SHA512

      c5e66108183f0c5f863e6b1c12d7d0db58113e6416907bbf3d5a897325789f16ac40e6885f5e4e11a58f9ef5fa75062dbad4f17f62dc8acb3f097c0b5bfe5063

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files\libvlc.dll

      Filesize

      1.5MB

      MD5

      40ae15c468001502dac0f06eb58fb302

      SHA1

      3b2599137a27fbc010aacde56b30e6f029bb12ae

      SHA256

      f7524f192f897d6166284ee8bc1caa16335b4d097bcb686f1247c10bef208762

      SHA512

      ae8bc69f806cbf40a24b11a3845bda17bff06ad1dd2fd639280da44474c849e06f4ba0ce17a586aebeb9b1ec04597ba16177a9380ebab720312c71a7758a0530

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files\sqlite3.dll

      Filesize

      1.4MB

      MD5

      3d5db49880c651f61d664aafd7489691

      SHA1

      47e1cbf4ceec8b1651a59536851f34a42569e5d3

      SHA256

      660f2ae4d2441ddafec267ed8d6a9e01d8d30ae81b36b52c62bccfe778059ba7

      SHA512

      57f55ee986e344cfe7e62ffd7667b8d9e292aeb01d93bb3643067c131cb6d4a828d6712d75178aaf142eda7a62e716dab7592793f13e26cb962d3bf5894a40ca

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files\vlc.exe

      Filesize

      966KB

      MD5

      035860e139ba6db1b38d5346cb6ff5b6

      SHA1

      d515303cbca3a8ae7a0463fecd418d81b314e650

      SHA256

      16197a321fc7b0a2a311e689621fe4a7cd50fdcb2d163973a31e4fd6352232d7

      SHA512

      14dab9108d85af72001631130923b94483dd1440f24a8eedad41756db3030c5e11e80ec894922c389e09c86e8b721bcbd8594bd3646f484560f89963a7e18cc7

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\msiwrapper.ini

      Filesize

      430B

      MD5

      84d51433d336df4cefae78fad9965c49

      SHA1

      463d259e2e70219df7bb015572153013fb016021

      SHA256

      33e9ddc18c4c15813e58462edcfb610b8196704207b370948d1558e4ed278607

      SHA512

      e15a386d0b5556b1a9aad9c2c586abcb78b26e04ac5ff12058553949aad9dda452078ae36e03969812c21375f0c6bd0a17ea8745172641cdf087aa23618653a6

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\msiwrapper.ini

      Filesize

      1KB

      MD5

      fdfd6a313adef1a368e536f721ed8bfe

      SHA1

      eb8ee7c971d9ddccf0a1669b04fd926612120bbf

      SHA256

      86aee41e6abd28e5514555ebc9f77bf7a1b122fc4bb7ceb3e35bd6ae4a2aa76e

      SHA512

      baded1cd8a0e96cc5a02f3ccb83836772e14cc27523d8953817262650d7c60f5542686037eb87e495c31d98c7e126e6104821fdc79961f0b9bfe82a8286bbc40

    • C:\Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\msiwrapper.ini

      Filesize

      1KB

      MD5

      910a47894b2d13c30e44e593f5f4752c

      SHA1

      72c14992ebef049ff157bf0454139ffd5d9fb6b3

      SHA256

      bb60aa927547f3b40fb147bc40e284c4a4697e6cb0ea5a4d819cc65541a3fb65

      SHA512

      2433f35064e88de5f946e6d08206b3fe012efe5c0b205b42556166e2651bba4fde7db98c87cfb7062e852f78b2f3a3b597cb8385b5e914806857a09863763ad8

    • C:\Windows\Installer\MSIA709.tmp

      Filesize

      208KB

      MD5

      d82b3fb861129c5d71f0cd2874f97216

      SHA1

      f3fe341d79224126e950d2691d574d147102b18d

      SHA256

      107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

      SHA512

      244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

    • C:\temp\Autoit3.exe

      Filesize

      587KB

      MD5

      9bcdfd0c8bf7ffe1fa38377a1dafbd1d

      SHA1

      b9b918861042aaad985c9c3405cd5a997341067a

      SHA256

      fcda800304368f1c5dcd270a5270f83fccd2f47d6157ef56de3de77dc468cdca

      SHA512

      a763530811500e05613faad4226ca88ba5bb24aeba86157e20a1a5046250caf5dcd62586aaa63127fbb720afb4684445e71f820716508b183766ec51ff70f2bb

    • \??\c:\temp\script.au3

      Filesize

      377KB

      MD5

      1c93800db8d0f45459bc0a53f081f7e6

      SHA1

      8d24db8cc33421e50a24897c107185af0c83d8a5

      SHA256

      12355c2b883740dc391c69690c3bd9855304c38b2cd612eafb404ff2a7d68985

      SHA512

      66dd906ca6d7bd8d41f427847eb477ec7921dd97c47ff452b688b5746a53f386e13a384b12621d3a04dedf6018c06cef51371b51a54a7bab23576182c17c5c29

    • \??\c:\temp\test.txt

      Filesize

      76B

      MD5

      5e21c8ec8315c76c2e60eb1ff99040ca

      SHA1

      5b691e8bcf0967cc2b46aeb6dd7af91d8992ea25

      SHA256

      9e6861ac7aa15474d2d00afd67b2fdec473cf67a13116fddecf1495088e853ba

      SHA512

      ab10cda631047028e9321952430a9f7b1cd9a78cb59c8c192aaa72cc5a95cdeee96ef432f422e11bcddeb72170d97ba0093e29cc0ad07bb78e1c61c571f2553b

    • \Users\Admin\AppData\Local\Temp\MW-e9ed2d7a-e5b0-4e10-92ac-9bb1fb0b6072\files\libvlc.dll

      Filesize

      1.2MB

      MD5

      6e92e20813eb0aa1903bfa9db03e0c0a

      SHA1

      aa943d06efd7631130a5ef0de507b5666f2e2c68

      SHA256

      2bee72d9534b045cae89ecc03c32d019a0ee35e0aa8d1d3de294f73bb18ced7c

      SHA512

      3dcafe6bf5903b1d362aa7d8bc2f6413a88c45d3771bc7c60e562bd58fd9b184fe5802a3308182f1e88e50c8e584efa06e141e83f3b9c12fb1e701d9ec5927be

    • memory/1760-77-0x00000000020E0000-0x000000000227E000-memory.dmp

      Filesize

      1.6MB

    • memory/1760-87-0x00000000020E0000-0x000000000227E000-memory.dmp

      Filesize

      1.6MB

    • memory/1760-85-0x00000000742E0000-0x000000007446D000-memory.dmp

      Filesize

      1.6MB

    • memory/1760-84-0x000000013F9A0000-0x000000013FA98000-memory.dmp

      Filesize

      992KB

    • memory/2316-94-0x0000000004B80000-0x0000000004ECE000-memory.dmp

      Filesize

      3.3MB

    • memory/2316-93-0x0000000003700000-0x00000000046D0000-memory.dmp

      Filesize

      15.8MB