Analysis

  • max time kernel
    127s
  • 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
    24-11-2022 22:28

General

  • Target

    8cc06b9c6216a14c6cc2410e755f865598ce90b0c0e674d850e1c25d39430e69.exe

  • Size

    3.8MB

  • MD5

    b26577485ebc461b7967b447a3fb2cd0

  • SHA1

    004dd6a10ad81eb59c29e00daf24b3c87850f7ca

  • SHA256

    8cc06b9c6216a14c6cc2410e755f865598ce90b0c0e674d850e1c25d39430e69

  • SHA512

    b777651d6cd29b36a25337954e180c90f7cd418ce42069525ecbab18854e0aa05095daf2bbd557e5fff14ea71f4fd6d9cef8aa01d573937f6677d2cff15ee790

  • SSDEEP

    49152:P3YwWSKin8J2vzfQaKiHKNc8T8A+5MSBfLL0fM0iD9AsCfY:QwzKin0wzfvKMK68ToKSBfv0kbW

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 20 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8cc06b9c6216a14c6cc2410e755f865598ce90b0c0e674d850e1c25d39430e69.exe
    "C:\Users\Admin\AppData\Local\Temp\8cc06b9c6216a14c6cc2410e755f865598ce90b0c0e674d850e1c25d39430e69.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 AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2044
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2176
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:2424
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:1428
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:1388

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.dat
        Filesize

        3KB

        MD5

        a9ca0e755594d3e8431ce373d07ff4ae

        SHA1

        9920d9e6042fdee61892f650eb390c67b7962f61

        SHA256

        6a79c67f96dbb0c38869b28417d518b55788401e9dd1a02483db71795838d043

        SHA512

        6ad9f9f957c2e08d3c41682a96e1f2085061b233b815cff4e1b465acb75b04e0ce5e06fd7bce055f7b025eb7769193dde1a2d61c42ec78fc350f1cab46cbb831

      • C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.dll
        Filesize

        753KB

        MD5

        12616f209056f6862945cec7d54be14e

        SHA1

        fc0e12882ceb1d0d8e1b98de09d98a8670f8e729

        SHA256

        d76f3a653ff95f8af915083ab8bcebdeecb605cf7842cf04b0f627cfdb72fc56

        SHA512

        67849d35017a6481847bcba348cdfdb60eb0361262d3c22717f2bbc634d6d076fcc03420764aa66ccd0062e2d13a95a70e1b271fb1c4245ab18427eb10615f08

      • C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.tlb
        Filesize

        3KB

        MD5

        0152dae58a1c6dfd44a95f6e69b7b963

        SHA1

        895438957356d0757810c9a65205a884faec2106

        SHA256

        76794dc7bc140457b22160a2f056c2c51632c3f7f1240c1715b92ff5da13ad7e

        SHA512

        24e23727571fdc54d4f6986df3ae18942bade4bba3706b93107ffb2df3a9c76ebd3ed1a3e013fd481709c86b26f45eac33b86d602690b4cfcf6544c8a358c2aa

      • C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.x64.dll
        Filesize

        890KB

        MD5

        dbdd5a981bb803210188cc5f47853374

        SHA1

        3ee3427556bf240a4e381c59c221157474f6332e

        SHA256

        82dd9d5cc8dffbdbbcbb846f9de1719467f957faec0e469cf03f661c6db34e95

        SHA512

        8952131b23a1536f76e85d61f971827f17f3faba4e376e3ec2a57a98c57906ba36ba0d630f87eb684760fadd1d268ccf7e099c3731c09e755698726c01b91515

      • C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.x64.dll
        Filesize

        890KB

        MD5

        dbdd5a981bb803210188cc5f47853374

        SHA1

        3ee3427556bf240a4e381c59c221157474f6332e

        SHA256

        82dd9d5cc8dffbdbbcbb846f9de1719467f957faec0e469cf03f661c6db34e95

        SHA512

        8952131b23a1536f76e85d61f971827f17f3faba4e376e3ec2a57a98c57906ba36ba0d630f87eb684760fadd1d268ccf7e099c3731c09e755698726c01b91515

      • C:\Program Files (x86)\TinyWallet\BD0fNWCNIfHHJA.x64.dll
        Filesize

        890KB

        MD5

        dbdd5a981bb803210188cc5f47853374

        SHA1

        3ee3427556bf240a4e381c59c221157474f6332e

        SHA256

        82dd9d5cc8dffbdbbcbb846f9de1719467f957faec0e469cf03f661c6db34e95

        SHA512

        8952131b23a1536f76e85d61f971827f17f3faba4e376e3ec2a57a98c57906ba36ba0d630f87eb684760fadd1d268ccf7e099c3731c09e755698726c01b91515

      • memory/2044-132-0x0000000003A00000-0x0000000003AC9000-memory.dmp
        Filesize

        804KB

      • memory/2176-138-0x0000000000000000-mapping.dmp
      • memory/2424-141-0x0000000000000000-mapping.dmp