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Analysis

  • max time kernel
    140s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240705-en
  • resource tags

    arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-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 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 9 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.

  • Modifies data under HKEY_USERS 51 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 57 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 7 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:1708
  • 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:2596
    • C:\Windows\Installer\MSI4676.tmp
      "C:\Windows\Installer\MSI4676.tmp" /m /sid:S-1-5-21-2172136094-3310281978-782691160-1000
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:2904
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2024
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003BC" "00000000000003A8"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2600

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\MetaData\3C3948BE6E525B8A8CEE9FAC91C9E392_ED584AAC2FBD1CBE20B4485E3FEDDA73

    Filesize

    416B

    MD5

    b982644eeb28405c0eb7a3c255dc7bb3

    SHA1

    f4d77a5589eb03a3bed2e4e424b9e1851964ae96

    SHA256

    741b6d92349a89ef9e5db0707f82da509a79df10e0959f799a5b467b9f4da69e

    SHA512

    b7403b948e9e903661714e245f800e865b8c01eb74f4447b149f135bc22b2f4a90c681ed754872f0b8a3f554e3b9198e8825d3ae9e95019717e4b124dc9c3e98

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    deac9203570053a7f318ec6d5117c15c

    SHA1

    453520061689a0903860a6b38f98113735572fe5

    SHA256

    fa8a389fdfef4d1e9c92714649378c3bb47cbad1ecf54d571ff457248d85ce55

    SHA512

    a0e2cba519b4ea5f5818f8e50b41bafc7f149c836a752f87a62f8fa3cedaacbe44d80dab47a0e107d0b59f13628af319b0de8379e4239c010f0319679943a1ea

  • C:\Users\Admin\AppData\Local\Temp\Cab4569.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Windows\Installer\MSI4676.tmp

    Filesize

    975KB

    MD5

    4e98bab8bd44b65009308965d7a290bd

    SHA1

    fd18b75202981c5d5746ff784f603918f7fe7308

    SHA256

    5ef44aa6c9d1dfd031a1f8c1d0d9e83f08b3e05658b67c3f9504f9c88f2e76ca

    SHA512

    b363c0ba6b0cf702347de7fb002bd3c1af3315e53d69e005e94703c00c8e5b66e34b5c89ab3f11048a3c8c6fd622e3d9617ef91e9c621936acb43c6c48569c6d

  • memory/2904-45-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB

  • memory/2904-68-0x0000000000400000-0x000000000066B000-memory.dmp

    Filesize

    2.4MB