Analysis

  • max time kernel
    143s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-11-2022 07:41

General

  • Target

    7124a23fd18b84c454a5d02a4ad639fa93f98b2bd63473bef4752b3ad81d0a2c.exe

  • Size

    3.8MB

  • MD5

    900b1648230f6efb573468919a3bb2db

  • SHA1

    27ddc3294b941647457ead2816232f4eda0300d0

  • SHA256

    7124a23fd18b84c454a5d02a4ad639fa93f98b2bd63473bef4752b3ad81d0a2c

  • SHA512

    9fa7f923fb7f95ffdc1764c38d329d62da5ffb291e01843ce081e3186068e244257c0cddcc3d6015f5e76626c1b03b2ac83e909fa961a57e9f5398c66fb40a4e

  • SSDEEP

    49152:d45TNFeIvS24viG6y1JqcEiT/mDj85+jjuwGwdHQLzFEt:krVStv76Omk+jjuwdHQLz

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 5 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 4 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7124a23fd18b84c454a5d02a4ad639fa93f98b2bd63473bef4752b3ad81d0a2c.exe
    "C:\Users\Admin\AppData\Local\Temp\7124a23fd18b84c454a5d02a4ad639fa93f98b2bd63473bef4752b3ad81d0a2c.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:4960
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3660
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1960
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:2260
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:4784

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.dat
        Filesize

        5KB

        MD5

        f0ae43eaa3418a7bb2c45640f7dc32d6

        SHA1

        46ca0b67a647013df0bf1a7e989c542486832cc7

        SHA256

        ed3bdb6b3730563519eb7691ac3267652f17b5c5fbbef4a0c49310b377374282

        SHA512

        e1312cf35daf7833a08cdca24767c261cc37a64c657ad855cac7c251713236d69432fb5bbe8092952c7c952a40285309f5b96ee1b37d8cfdfbab222b247af366

      • C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.dll
        Filesize

        614KB

        MD5

        c6b13b59b5326dd95e352027a180e42f

        SHA1

        16e02b4d300896d0384f5deed58a301191be0b8a

        SHA256

        a732d4f500b4df6cec5852bc4e8c7f8c64857b7c089637aca46643ecdd9f9a9f

        SHA512

        c24466afe116ce22c14e0e80348eb2f7ec2498a188605afd34cf1e51ad7bb018920dda997c88063f38e12ff4a0e0e627fdc5140b66d890b0c6862f441421bf8e

      • C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.tlb
        Filesize

        3KB

        MD5

        04394c6fd86d2619f9ca279c405ce4fa

        SHA1

        75c975f51db8219dd89825408f9748ed557a271d

        SHA256

        c70e8100821466642b0df8f4e5c399ec9d9428f4b4716aef32eb96c1fd5d982b

        SHA512

        e7fb1ebd90d6570b81d3b3c4c903356bd3f619ed5197c67a10f5a1181f41eeb0f27ad5e2b02398f00da2c21055c29d5a1dc8b9e3a98003219eac8cfd2eaa7ca6

      • C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.x64.dll
        Filesize

        695KB

        MD5

        778129815857ac62bb0c123b8b428189

        SHA1

        df269d9de71cfde97a5f156492aaba450e671287

        SHA256

        c76feac6ef5e2da002411d7bf90a1bb2ae6ac1eeaa8ba26d83851d54879005eb

        SHA512

        204feaaa4e592e6d57f54a4bc99bcd8b5b6e214e6936230fbf5dd8608d2c7f1b2fc16495221b1e7f8c5f6a0f19a3e62900a33e7852f86b07479023fc8048d8d7

      • C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.x64.dll
        Filesize

        695KB

        MD5

        778129815857ac62bb0c123b8b428189

        SHA1

        df269d9de71cfde97a5f156492aaba450e671287

        SHA256

        c76feac6ef5e2da002411d7bf90a1bb2ae6ac1eeaa8ba26d83851d54879005eb

        SHA512

        204feaaa4e592e6d57f54a4bc99bcd8b5b6e214e6936230fbf5dd8608d2c7f1b2fc16495221b1e7f8c5f6a0f19a3e62900a33e7852f86b07479023fc8048d8d7

      • C:\Program Files (x86)\GoaSave\kOprlPgaC6cZFZ.x64.dll
        Filesize

        695KB

        MD5

        778129815857ac62bb0c123b8b428189

        SHA1

        df269d9de71cfde97a5f156492aaba450e671287

        SHA256

        c76feac6ef5e2da002411d7bf90a1bb2ae6ac1eeaa8ba26d83851d54879005eb

        SHA512

        204feaaa4e592e6d57f54a4bc99bcd8b5b6e214e6936230fbf5dd8608d2c7f1b2fc16495221b1e7f8c5f6a0f19a3e62900a33e7852f86b07479023fc8048d8d7

      • memory/1960-144-0x0000000000000000-mapping.dmp
      • memory/3660-141-0x0000000000000000-mapping.dmp
      • memory/4960-135-0x0000000003680000-0x0000000003721000-memory.dmp
        Filesize

        644KB