Analysis

  • max time kernel
    144s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/08/2024, 06:51

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:1948
  • 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:2708
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:1172
    • C:\Windows\Installer\MSIB18.tmp
      "C:\Windows\Installer\MSIB18.tmp" /m /sid:S-1-5-21-2718105630-359604950-2820636825-1000
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:3588
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious use of AdjustPrivilegeToken
    PID:1436

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

    8d56c595db416d810aac6b08dc839ac2

    SHA1

    3e89214607fa31224fba51e6e0d08245f9d5a8ea

    SHA256

    30b8bb4fe1d04ea722551fd358070bc7b9c90d60640bfad473850685dda9f706

    SHA512

    bcce815a48bd2bcf81160e9674c222ca97c481b539601f133bda65821112b0c558cf3e1faf225772e0d1157e334099a6791bb581c8945144cc08dad9ff1d1e49

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

    Filesize

    182B

    MD5

    e66f93169f7b3e28d60184c8d7cbf72b

    SHA1

    06d124c197444abc5ffe9afcd5b960ac0d25b5b4

    SHA256

    a84172a46e818a3e4e1874a0d6c82cf6e9f10bb4aeff44e3a7268d9700308e14

    SHA512

    b0d09976ea3b7154a5c35619f8f68efb59069a33bf6994d0b614e7b32c2eadc2f23eb41c166053670327707f8f6e495289fc3d23e0fa0998c53e78c04c2aa1a6

  • C:\Windows\Installer\MSIB18.tmp

    Filesize

    975KB

    MD5

    4e98bab8bd44b65009308965d7a290bd

    SHA1

    fd18b75202981c5d5746ff784f603918f7fe7308

    SHA256

    5ef44aa6c9d1dfd031a1f8c1d0d9e83f08b3e05658b67c3f9504f9c88f2e76ca

    SHA512

    b363c0ba6b0cf702347de7fb002bd3c1af3315e53d69e005e94703c00c8e5b66e34b5c89ab3f11048a3c8c6fd622e3d9617ef91e9c621936acb43c6c48569c6d

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

    Filesize

    23.7MB

    MD5

    b2b5216fde392c95e4e0a174418f653a

    SHA1

    9c2945a1a1fc22878a5c27cadb7b66b780006a09

    SHA256

    b0d76a40c273a5094fca27270440104d4dc39e5590eaf1441eca0905d1798017

    SHA512

    154df30a0109d202082d11e0f1a1a868a1aba77207b5bfad71f8c38773cd488d3b34c00366017a51cdf93988bf48c6f00308b8685f36edd5c39e381434998a44

  • \??\Volume{fa35ad82-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{d6ccba0c-63a4-44fc-97a0-67dfa97bc241}_OnDiskSnapshotProp

    Filesize

    6KB

    MD5

    ae29a6be273e513d46a46efa219409c7

    SHA1

    a2d3450d9f60e33d14468069781cc3a8620dcc6e

    SHA256

    966dfe3970030f32e086d355d6b5e7e2f868749fc59e843b3de8947753bc2973

    SHA512

    4ff22ca717eee4b4a69aa74d6b4c836a72476decfb0ca8847aaced58f5955b2afbb9577bf15324b101c0503aa141487f8297691503e45168257e16d7652f5eeb

  • memory/3588-36-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/3588-42-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB