Analysis

  • max time kernel
    43s
  • max time network
    88s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 08:05

General

  • Target

    326743d580d12b72e14bbd9265ff18322a646ed076e855ccc4c50d5a08bae88a.exe

  • Size

    3.9MB

  • MD5

    640bc75e9f1c4b02946ce31a5e303374

  • SHA1

    0c6bb118760a10244d38cae129559c9d38e9cf01

  • SHA256

    326743d580d12b72e14bbd9265ff18322a646ed076e855ccc4c50d5a08bae88a

  • SHA512

    61ad426845378743e94c5bf310df18d2506195206488ca0266748f81a85b7e0daa02cc165a790690807b80d0ce067fc8baa67e3bffc2067d3854c32b50709b48

  • SSDEEP

    49152:qckv4xU82hq5SGQR3RKGCARgGruOtabbGZ/H7MDXYLS13f/kV9R7gUYAa:wAJO3RXqGrRWuHQD2y0Vb

Malware Config

Signatures

  • Registers COM server for autorun 1 TTPs 4 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops Chrome extension 3 IoCs
  • Installs/modifies Browser Helper Object 2 TTPs 8 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 8 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • System policy modification 1 TTPs 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\326743d580d12b72e14bbd9265ff18322a646ed076e855ccc4c50d5a08bae88a.exe
    "C:\Users\Admin\AppData\Local\Temp\326743d580d12b72e14bbd9265ff18322a646ed076e855ccc4c50d5a08bae88a.exe"
    1⤵
    • Loads dropped DLL
    • Drops Chrome extension
    • Installs/modifies Browser Helper Object
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1416
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GooSave\7JnFPKVjzTaKbm.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:836
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GooSave\7JnFPKVjzTaKbm.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:632

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GooSave\7JnFPKVjzTaKbm.dat
    Filesize

    5KB

    MD5

    40e3d82764766d5286968f5bd177c7b5

    SHA1

    31c8f0c514013a727f59adb6a2c8c0dffd5ae3fc

    SHA256

    4bdbaaac6e57eafb7c11de21d61606b5efd8ab6f2ba99a8b9c4e281725c7e2a4

    SHA512

    38f3cb75d28e3dd78ccad2d5eaaa8e171657b48548f8d37abfc80d2e06ae4dcc812e342a22279cb1db28ca40252c8ebaf296d808627efed588091a800c7c6a07

  • C:\Program Files (x86)\GooSave\7JnFPKVjzTaKbm.tlb
    Filesize

    3KB

    MD5

    f63e45b75ed3562f6c50814744974217

    SHA1

    b28e268b0d187638768b26677a4e8d169f1a2534

    SHA256

    1270f4ef72d9acd732bcd1fcb557b4b7cc8d7096aa41bd15dc3842a6c7c88299

    SHA512

    550870876ab15911cc27bcbd4418296057f3a406e709ab7cd920a2cd0c0cc0a3876d85665a3d3be937a6f0ffb052b90cafcdabcac96ec90f0e0c4c90846dc687

  • C:\Program Files (x86)\GooSave\7JnFPKVjzTaKbm.x64.dll
    Filesize

    695KB

    MD5

    e36b4bca5cf4357a407a67e8f06a0a6a

    SHA1

    20241811c3f501e3dae9f42aeb1fc42e7225944e

    SHA256

    c496fc61570914401adfe0250668ef0b884f2e06eaca10edf8993773f58b5bcd

    SHA512

    d9b005a2b02fc45283b5f1ffe9ce373ef3249562402a6893e6888f10beb3dc62f16f25db9640de636af438fa290b1e7065dc127e86b46e6efd5484717e9e74b1

  • \Program Files (x86)\GooSave\7JnFPKVjzTaKbm.dll
    Filesize

    616KB

    MD5

    70cef77fc8c44081de97f5194ac56278

    SHA1

    fcf04dc14f17b655d5201cc7da5af9a17281dea5

    SHA256

    10cabc84f17c476cf41a1281421b28be0c6784e25445988fdb536acf999c3ec2

    SHA512

    0883aa731f245d484d4ece4e9dcb3067e4451c5e967a5d34c860137bc572142f2666d83c5f9806918d7fe371bd8a7c58ac39b23110c7cb7331c3e97dc3c8cda3

  • \Program Files (x86)\GooSave\7JnFPKVjzTaKbm.x64.dll
    Filesize

    695KB

    MD5

    e36b4bca5cf4357a407a67e8f06a0a6a

    SHA1

    20241811c3f501e3dae9f42aeb1fc42e7225944e

    SHA256

    c496fc61570914401adfe0250668ef0b884f2e06eaca10edf8993773f58b5bcd

    SHA512

    d9b005a2b02fc45283b5f1ffe9ce373ef3249562402a6893e6888f10beb3dc62f16f25db9640de636af438fa290b1e7065dc127e86b46e6efd5484717e9e74b1

  • \Program Files (x86)\GooSave\7JnFPKVjzTaKbm.x64.dll
    Filesize

    695KB

    MD5

    e36b4bca5cf4357a407a67e8f06a0a6a

    SHA1

    20241811c3f501e3dae9f42aeb1fc42e7225944e

    SHA256

    c496fc61570914401adfe0250668ef0b884f2e06eaca10edf8993773f58b5bcd

    SHA512

    d9b005a2b02fc45283b5f1ffe9ce373ef3249562402a6893e6888f10beb3dc62f16f25db9640de636af438fa290b1e7065dc127e86b46e6efd5484717e9e74b1

  • memory/632-65-0x0000000000000000-mapping.dmp
  • memory/632-66-0x000007FEFBE41000-0x000007FEFBE43000-memory.dmp
    Filesize

    8KB

  • memory/836-61-0x0000000000000000-mapping.dmp
  • memory/1416-54-0x0000000075F01000-0x0000000075F03000-memory.dmp
    Filesize

    8KB

  • memory/1416-55-0x00000000027D0000-0x0000000002876000-memory.dmp
    Filesize

    664KB