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Analysis

  • max time kernel
    145s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/08/2024, 02:06

General

  • Target

    $TEMP/GoogleToolbarInstaller_zh-CN_signed.msi

  • Size

    1.1MB

  • MD5

    ec1629e2086cad6ccc4c995630896213

  • SHA1

    e0e1f7720072b85c04318d6d15b595d7e8f52670

  • SHA256

    101fc387cb284a27c943ea087b751aefb5c106a214253b7e29e7381da95beaee

  • SHA512

    3f7157a25a2d1f1fc345e9138ed5c1f17805256be985e8cfe54c60cb5a11d62e13472bdeee187c7b13e5746c8d9e08359d929410d3b5e5ab204cf4f91c02d9b1

  • SSDEEP

    24576:FBkI5/nyOeMDyWd8Dce5HrY5w6Rsa31L5Dh66NIXiQcAqHVIYzgD:jhyOeMPacWHruwOsa31L5Dh66N+iVh1O

Malware Config

Signatures

  • Blocklisted process makes network request 4 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 8 IoCs
  • Executes dropped EXE 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 5 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\$TEMP\GoogleToolbarInstaller_zh-CN_signed.msi
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1960
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Blocklisted process makes network request
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4580
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:512
    • C:\Windows\Installer\MSIE010.tmp
      "C:\Windows\Installer\MSIE010.tmp" /m /sid:S-1-5-21-2412658365-3084825385-3340777666-1000
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:5044
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:4660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C3948BE6E525B8A8CEE9FAC91C9E392_ED584AAC2FBD1CBE20B4485E3FEDDA73

    Filesize

    5B

    MD5

    5bfa51f3a417b98e7443eca90fc94703

    SHA1

    8c015d80b8a23f780bdd215dc842b0f5551f63bd

    SHA256

    bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

    SHA512

    4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\60E31627FDA0A46932B0E5948949F2A5

    Filesize

    1KB

    MD5

    1ba25895dc793e6826cbe8d61ddd8293

    SHA1

    6387cc55cbe9f71ae41b2425192b900a1eb3a54f

    SHA256

    cc4c5c999ca59e5a62bc3ffe172a61f8cf13cc18c89fe48f628ff2a75bdc508a

    SHA512

    1ff9b34fdbeae98fa8b534ba12501eb6df983cc67ce4f8ffc4c1ff12631aa8ed36ff349c39a2186e0ac8d9809437106578a746eec3854b54fef38a3cc0adb957

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\3C3948BE6E525B8A8CEE9FAC91C9E392_ED584AAC2FBD1CBE20B4485E3FEDDA73

    Filesize

    416B

    MD5

    bb369e2c4b0cd998cc63b951c88aba31

    SHA1

    d2409133f52a35f73a40fec975f699f6c1064339

    SHA256

    278cc63430d14ee8d96ed6c4b94f0ffe39fb9e75bed0742e6a50542379c99e95

    SHA512

    2a8a727c37f7f8a70913f6dbbfefbd26f06b234debc239c295d43b9907aafa8afda18b7dd5074d3188f3d06759f541fd85ffea3849a2bfc9ea73c928428cf7ed

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\60E31627FDA0A46932B0E5948949F2A5

    Filesize

    182B

    MD5

    13f97502a23f6e7a970b13e6eb3c006e

    SHA1

    c301a7f56462313b764fe5f32fdd01b157f3d4d9

    SHA256

    d5b2f1545d55b45388c6edcc709253624162eaba71b9c4940b8cc3c22cf1366e

    SHA512

    26ca743a48e41d4e1e3976fa0bd8bdc6e11d13fb72d4d38dae2f08a26913faf040ca7c7d8bbaa51cce5b61d4d11e264c8c925ce933815a2ab17fcc07918ac600

  • C:\Windows\Installer\MSIE010.tmp

    Filesize

    975KB

    MD5

    4e98bab8bd44b65009308965d7a290bd

    SHA1

    fd18b75202981c5d5746ff784f603918f7fe7308

    SHA256

    5ef44aa6c9d1dfd031a1f8c1d0d9e83f08b3e05658b67c3f9504f9c88f2e76ca

    SHA512

    b363c0ba6b0cf702347de7fb002bd3c1af3315e53d69e005e94703c00c8e5b66e34b5c89ab3f11048a3c8c6fd622e3d9617ef91e9c621936acb43c6c48569c6d

  • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

    Filesize

    23.7MB

    MD5

    0be9e7459fa7cc7714a01f4d3d4514d9

    SHA1

    f8fc3bbcbf2be8bf97904eb09c09523de455d38f

    SHA256

    63fe0e737d35c2a1891b93325056445d9f552645acd75024e120e7431ed79bfb

    SHA512

    54174f93db18aa4072f6094f5d58b741f6e9064f16a79b8ec7e7d7dad3ec05d4d79ac03bb80e9ee27e7fcf5e9c5d45d9c6843d2267b050712a7575520ba7edf2

  • \??\Volume{851c08bf-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{f949aec7-a8d0-4aee-ae37-fe80773b1177}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    93c7734a84f0201efd7637ce8bf77e26

    SHA1

    9a72ab0a35b9f1cd24e78210f9ac82210fea5d20

    SHA256

    3ddbed21b214713d8cecd9aebfc54cdd9d0c00a2be9b0d97246a441928b06135

    SHA512

    77869a3e297f409e55d3057865c7b53b6d82dfa1d2084a9c7995b36f441cfb17db0d4bd66544d9b10096d608dde4fe8df67c30d8b892cc34d524e1d57160859f

  • memory/5044-34-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/5044-42-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB