Analysis

  • max time kernel
    46s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 07:43

General

  • Target

    afef2f9f5c5e3ac4a946cea031ef20e6.msi

  • Size

    5.7MB

  • MD5

    afef2f9f5c5e3ac4a946cea031ef20e6

  • SHA1

    9cc6eb3707a9f58e6d5c024b1d0d53c4724c87ad

  • SHA256

    03fcd10e0a552222e3d0ab3308af694af5536e8980e50c98ecfe48d32b267c59

  • SHA512

    41e17bb4ad708c705830364d10d2617b5e098597fc630e0251c72da37158388626c926810ffa78f9a4d2da52529d8fd595e7e0cd4c22bc716f41609d9b0b4267

  • SSDEEP

    49152:XpUPdFdYxt2SENs02k7OxHA32D9K1O5k0a5MLXrzL6yq5/Hdrbz5jLcwE/7z3V49:XpgKxPDM6+OLGThGWn126

Malware Config

Signatures

  • Luca Stealer

    Info stealer written in Rust first seen in July 2022.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Modifies file permissions 1 TTPs 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Windows directory 13 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 59 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\afef2f9f5c5e3ac4a946cea031ef20e6.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:852
  • 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:1708
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 8CA44EC1BB15B1C43285FCDBC0B6E927
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        PID:1392
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        PID:1760
      • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\UIServices.exe
        "C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\UIServices.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:616
        • C:\Windows\system32\cmd.exe
          "cmd.exe" /c "schtasks /Create /TR C:\Users\Admin\AppData\Local\Temp\\Google Chrome /SC ONLOGON /TN Google Chrome /IT"
          4⤵
          • Drops file in Windows directory
          • Modifies data under HKEY_USERS
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:1088
          • C:\Windows\system32\schtasks.exe
            schtasks /Create /TR C:\Users\Admin\AppData\Local\Temp\\Google Chrome /SC ONLOGON /TN Google Chrome /IT
            5⤵
            • Creates scheduled task(s)
            PID:1548
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        PID:2028
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1168
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003B8" "000000000000032C"
    1⤵
      PID:1088

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files.cab

      Filesize

      5.4MB

      MD5

      375e23274e9a65752052c4cc9fdef886

      SHA1

      7bd1c2e20fc78e7b45eb7aab97e8503667445d36

      SHA256

      670209bf83f6ad3e5a526e816c757524a38ce3a11522cd0693b4bbe3a837e581

      SHA512

      869040a610139de440b8c9f370d3d7b2f4882a883745d43bbab4756a030e22c6dee4b39bbe9490254f9d5c130578e84497bc821660006c38306bcfe61ac6218d

    • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\UIServices.exe

      Filesize

      5.3MB

      MD5

      9edef0f9db07974c3ce9cba957327e78

      SHA1

      474f53d12af223f4c3da84f5832668fbb6611311

      SHA256

      90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

      SHA512

      e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

    • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\UIServices.exe

      Filesize

      5.3MB

      MD5

      9edef0f9db07974c3ce9cba957327e78

      SHA1

      474f53d12af223f4c3da84f5832668fbb6611311

      SHA256

      90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

      SHA512

      e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

    • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\VCRUNTIME140.dll

      Filesize

      99KB

      MD5

      7a2b8cfcd543f6e4ebca43162b67d610

      SHA1

      c1c45a326249bf0ccd2be2fbd412f1a62fb67024

      SHA256

      7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

      SHA512

      e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

    • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\msiwrapper.ini

      Filesize

      1KB

      MD5

      5cb04b565b14d48edf1b89271b6e1af9

      SHA1

      72809b65be113a19f72740982112a02c4b59f321

      SHA256

      6f7ed1b1a6cbe83cc031422a20388c90a7466d3cef663ca658250d64d136a641

      SHA512

      f5a1d514b6c7dcc81f7fa32085ad4558dc1b3f0735080b83d9d560ac7042961832d01f622f6d8021dc22c300da68d0eed77ec6c90e74206605ebd7a764ff4717

    • C:\Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\msiwrapper.ini

      Filesize

      1KB

      MD5

      1211a185c459d49c493caab96bf44b60

      SHA1

      9c0825afabd54a770a27b2a1c106c84d092867fa

      SHA256

      d08920e768dd26490d481cb85b63762bbac199eb82e13d1ee90d60f86f426e77

      SHA512

      7b6a2640e7724eb761849a3e0e1a90a73a9a8202a4926f34c5fb128caac663f94ac84dfb4e269ddbb6d347d25a7d91299c80f5384fcf83e99715ee4ee3cbc3b9

    • C:\Windows\Installer\MSIB1A4.tmp

      Filesize

      208KB

      MD5

      d82b3fb861129c5d71f0cd2874f97216

      SHA1

      f3fe341d79224126e950d2691d574d147102b18d

      SHA256

      107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

      SHA512

      244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

    • C:\Windows\Installer\MSID7EB.tmp

      Filesize

      208KB

      MD5

      d82b3fb861129c5d71f0cd2874f97216

      SHA1

      f3fe341d79224126e950d2691d574d147102b18d

      SHA256

      107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

      SHA512

      244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

    • \Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\UIServices.exe

      Filesize

      5.3MB

      MD5

      9edef0f9db07974c3ce9cba957327e78

      SHA1

      474f53d12af223f4c3da84f5832668fbb6611311

      SHA256

      90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

      SHA512

      e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

    • \Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\UIServices.exe

      Filesize

      5.3MB

      MD5

      9edef0f9db07974c3ce9cba957327e78

      SHA1

      474f53d12af223f4c3da84f5832668fbb6611311

      SHA256

      90056c97ab02271509b04c192ae375ed775b5c2e642e4b85bec8d27742036e72

      SHA512

      e15a46dc659bf6ea591a69a7c40b0bd30626d5c533d21e48c3f4306f66a69ba822238461ad539b8d00bd9dd4c294ae43c1c54a1f2455eee2ade1670f93fcae09

    • \Users\Admin\AppData\Local\Temp\MW-ed144e16-446d-4960-948c-4390d28c0f50\files\vcruntime140.dll

      Filesize

      99KB

      MD5

      7a2b8cfcd543f6e4ebca43162b67d610

      SHA1

      c1c45a326249bf0ccd2be2fbd412f1a62fb67024

      SHA256

      7d7ca28235fba5603a7f40514a552ac7efaa67a5d5792bb06273916aa8565c5f

      SHA512

      e38304fb9c5af855c1134f542adf72cde159fab64385533eafa5bb6e374f19b5a29c0cb5516fc5da5c0b5ac47c2f6420792e0ac8ddff11e749832a7b7f3eb5c8

    • \Windows\Installer\MSIB1A4.tmp

      Filesize

      208KB

      MD5

      d82b3fb861129c5d71f0cd2874f97216

      SHA1

      f3fe341d79224126e950d2691d574d147102b18d

      SHA256

      107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

      SHA512

      244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

    • \Windows\Installer\MSID7EB.tmp

      Filesize

      208KB

      MD5

      d82b3fb861129c5d71f0cd2874f97216

      SHA1

      f3fe341d79224126e950d2691d574d147102b18d

      SHA256

      107b32c5b789be9893f24d5bfe22633d25b7a3cae80082ef37b30e056869cc5c

      SHA512

      244b7675e70ab12aa5776f26e30577268573b725d0f145bfc6b848d2bd8f014c9c6eab0fc0e4f0a574ed9ca1d230b2094dd88a2146ef0a6db70dbd815f9a5f5b

    • memory/616-67-0x0000000000000000-mapping.dmp

    • memory/852-54-0x000007FEFB641000-0x000007FEFB643000-memory.dmp

      Filesize

      8KB

    • memory/1088-71-0x0000000000000000-mapping.dmp

    • memory/1392-60-0x0000000000000000-mapping.dmp

    • memory/1548-73-0x0000000000000000-mapping.dmp

    • memory/1760-63-0x0000000000000000-mapping.dmp

    • memory/1884-57-0x0000000074E41000-0x0000000074E43000-memory.dmp

      Filesize

      8KB

    • memory/1884-56-0x0000000000000000-mapping.dmp

    • memory/2028-72-0x0000000000000000-mapping.dmp