Analysis

  • max time kernel
    5s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 12:40

General

  • Target

    f6deb8f78b19749f1fea6127ee42c97e8b03042291c11c88591c4e9d1c6e36cd.exe

  • Size

    2.9MB

  • MD5

    5cc691125c155ea2e66d0df85f8849d1

  • SHA1

    7a2f3f90c6ed9e33f2b85c34654a701f17342aa4

  • SHA256

    f6deb8f78b19749f1fea6127ee42c97e8b03042291c11c88591c4e9d1c6e36cd

  • SHA512

    995fafe7d592ed49e5c6436261b00a62050779e29f6de468bec439e75c3754484a7968332d846aeccda46144ceaeb05a324ad98656fac08fe0c3782858196883

  • SSDEEP

    49152:av1Nd3qcNKSo65lhv+KQiqCW+Rv4J0w+7xRO11WLGctlUZNpyWfB:a7NRo65/Gn+Z401RO1lqGB

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\f6deb8f78b19749f1fea6127ee42c97e8b03042291c11c88591c4e9d1c6e36cd.exe
    "C:\Users\Admin\AppData\Local\Temp\f6deb8f78b19749f1fea6127ee42c97e8b03042291c11c88591c4e9d1c6e36cd.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:2004
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoSaave\M29sWKyjxTMbor.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoSaave\M29sWKyjxTMbor.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:952

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Program Files (x86)\GoSaave\M29sWKyjxTMbor.dat

    Filesize

    4KB

    MD5

    890e0c0770c4bbfc73e69e964a3739ba

    SHA1

    e626c5de9ea7e7d80f970da6078dbe114e0a5a8a

    SHA256

    cce96fdeeaea7f3ec8d26a660b5e0d126e55643f5fe23df6035a325c71e11c0d

    SHA512

    3e238d5e35bcde2dfdc87d69a9544871301a3ca4dc4382f401a880e1654aa673dead7a056f116e2621534e874c8cf1cea22b75249439d58abc3699a05f3b21ca

  • C:\Program Files (x86)\GoSaave\M29sWKyjxTMbor.tlb

    Filesize

    3KB

    MD5

    ea16e050c57b164fa84e8b82443a3439

    SHA1

    2b01b56bdb8a5986cd02cb510cac1a3918d11db9

    SHA256

    295f4a7b9258487bd55889369a50d086e861b5889dc3cf8be0302ad000d12eff

    SHA512

    29227cb3678e31072770d85910bc63584a3b291a6733cbb7d71e9ed86b8b2dff8bb4c74b126477af622a63dde3e7b30ee84ade54eff583711f1166e5c3ae568a

  • C:\Program Files (x86)\GoSaave\M29sWKyjxTMbor.x64.dll

    Filesize

    688KB

    MD5

    77bc36cf62b98793a117eb936dc55624

    SHA1

    9e4163cd0ad341f2e0bc3c8c3ddd6c16b8172be2

    SHA256

    cc3a5b6b87d7838938b1e348b9025928cfc813727a39738f9681828b66a7dde7

    SHA512

    472cc986e07d9bc226117c7bf1ea18c4c5a30e161e861c11e74e59bddbd3ae5c89dc21f5a29a0e23613fad345d7e51a961079a3a57bb84928d87cada8befc089

  • \Program Files (x86)\GoSaave\M29sWKyjxTMbor.dll

    Filesize

    608KB

    MD5

    0355269639d03f0c96b5c995a7fba557

    SHA1

    cf31506688e2c1f6bde3ea2046b39fb3cd45b1d6

    SHA256

    0e85dc783dd8d135e42e416497a6d85064af196fc4bdd208412c7d64ee5b5db6

    SHA512

    1121d570556897ed2585ad21101077cf52c4a9fad69abae2842ef28d12ca8ddbebce9978cff083b891bcc0ea36042ea87939b0d2632530cb4973186157741038

  • \Program Files (x86)\GoSaave\M29sWKyjxTMbor.x64.dll

    Filesize

    688KB

    MD5

    77bc36cf62b98793a117eb936dc55624

    SHA1

    9e4163cd0ad341f2e0bc3c8c3ddd6c16b8172be2

    SHA256

    cc3a5b6b87d7838938b1e348b9025928cfc813727a39738f9681828b66a7dde7

    SHA512

    472cc986e07d9bc226117c7bf1ea18c4c5a30e161e861c11e74e59bddbd3ae5c89dc21f5a29a0e23613fad345d7e51a961079a3a57bb84928d87cada8befc089

  • \Program Files (x86)\GoSaave\M29sWKyjxTMbor.x64.dll

    Filesize

    688KB

    MD5

    77bc36cf62b98793a117eb936dc55624

    SHA1

    9e4163cd0ad341f2e0bc3c8c3ddd6c16b8172be2

    SHA256

    cc3a5b6b87d7838938b1e348b9025928cfc813727a39738f9681828b66a7dde7

    SHA512

    472cc986e07d9bc226117c7bf1ea18c4c5a30e161e861c11e74e59bddbd3ae5c89dc21f5a29a0e23613fad345d7e51a961079a3a57bb84928d87cada8befc089

  • memory/952-85-0x000007FEFC471000-0x000007FEFC473000-memory.dmp

    Filesize

    8KB

  • memory/952-84-0x0000000000000000-mapping.dmp

  • memory/1392-80-0x0000000000000000-mapping.dmp

  • memory/2004-65-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-78-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-69-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-70-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-71-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-72-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-73-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-74-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-75-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-76-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-77-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-68-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-67-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-66-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-54-0x00000000761E1000-0x00000000761E3000-memory.dmp

    Filesize

    8KB

  • memory/2004-64-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-63-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-60-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-61-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-62-0x0000000000702000-0x0000000000706000-memory.dmp

    Filesize

    16KB

  • memory/2004-55-0x0000000000570000-0x0000000000617000-memory.dmp

    Filesize

    668KB