Analysis

  • max time kernel
    127s
  • max time network
    155s
  • 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 19:05

General

  • Target

    cd9be34a78d6796e1e221ca599f8eb7fc2ef079344af166d6993880d8cd80e6b.exe

  • Size

    4.2MB

  • MD5

    392eb4f6b1bdee5e29975f8acb94ce07

  • SHA1

    660b31b9f03b1cef3ce8ad6b5598a8b82e86d334

  • SHA256

    cd9be34a78d6796e1e221ca599f8eb7fc2ef079344af166d6993880d8cd80e6b

  • SHA512

    96f4a436e29636e25bf1964b0489c03887c98790acbb09670817263b5f2331507b3b646ed16e40b7bbaac678ef611ca21681b3c22cdcf50bfadb54b62402ee9f

  • SSDEEP

    49152:lo2ipIZ1YdVemQGdy+dYXt+nnxR9VarazzibdEkoCfdeCyvJ+ZyUReq7TLzWY:q9piYdVemZylXgXhzzibdlwCyEvR3z

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\cd9be34a78d6796e1e221ca599f8eb7fc2ef079344af166d6993880d8cd80e6b.exe
    "C:\Users\Admin\AppData\Local\Temp\cd9be34a78d6796e1e221ca599f8eb7fc2ef079344af166d6993880d8cd80e6b.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:2084
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:308
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:216
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:412
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:1348

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.dat

        Filesize

        3KB

        MD5

        548d5bd036c828af0038831c4f1464d9

        SHA1

        47130743e2ca2ad3741a8af531cdddc670bc4de9

        SHA256

        fa25b74b7d244a7eac8d12b94db5abbbe379376e68654956599ff5f87e6c903c

        SHA512

        3edc7a117ab32b562b9bbb9bdbf6c41306b288571aa5eaa5179ee928ad681bb8c3d3230904ff4cddd81824ef54038590681c6e0325419d391ef4fd46af70a5b7

      • C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.dll

        Filesize

        740KB

        MD5

        f37095c241e62cc8b66a00a187fd1155

        SHA1

        82a9120f26b4e76df5fe123a5176d28aa898b23c

        SHA256

        0810e4c7b6fb4ad3f7a3abee5bf321f720515e6c3e605c9348bc51e741906874

        SHA512

        eab1bdf2b0f79af777ce967d02789cf3fc39a09fafa43ff230a650bc42e871538e98953479a2849249d765037dc92175069335d8010da4fc1286f48a088b8b9b

      • C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.tlb

        Filesize

        3KB

        MD5

        dad7dc8242a2925ade239718a506374e

        SHA1

        08d7aba181e62216e2976c15a9107b760e0ef3ab

        SHA256

        7dd64eeefd4900b4ef39b47ef2cbe5cf6f7e184ca74dedb351c749c60d39981b

        SHA512

        71dd707836f3415c8b36cc485a879f82d3d5bd0cae95b891eb8cc3fcb3a3ada8f3fa53b68a06a866bca111b8c72d75bcefc118c9785fa20178cf13c4e57ac8ea

      • C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.x64.dll

        Filesize

        875KB

        MD5

        0c3a0b1a34377f22a3a16b868c74205c

        SHA1

        d24dd7c000de9f860b66a66539ea145feb8d94cc

        SHA256

        4744114a0e7734acac9ec0e7c91da4074811f5b71349d235491da22a3f6293fc

        SHA512

        0785ea18a70c03858026fe056c630a83231db8941407766cca99ab8414868943e6994964a15aa7ec8d13a72daafa016e0d2ca638b43e6e21cf077fc8f96bbc61

      • C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.x64.dll

        Filesize

        875KB

        MD5

        0c3a0b1a34377f22a3a16b868c74205c

        SHA1

        d24dd7c000de9f860b66a66539ea145feb8d94cc

        SHA256

        4744114a0e7734acac9ec0e7c91da4074811f5b71349d235491da22a3f6293fc

        SHA512

        0785ea18a70c03858026fe056c630a83231db8941407766cca99ab8414868943e6994964a15aa7ec8d13a72daafa016e0d2ca638b43e6e21cf077fc8f96bbc61

      • C:\Program Files (x86)\TinyWallet\HSxy2tteZTt0N9.x64.dll

        Filesize

        875KB

        MD5

        0c3a0b1a34377f22a3a16b868c74205c

        SHA1

        d24dd7c000de9f860b66a66539ea145feb8d94cc

        SHA256

        4744114a0e7734acac9ec0e7c91da4074811f5b71349d235491da22a3f6293fc

        SHA512

        0785ea18a70c03858026fe056c630a83231db8941407766cca99ab8414868943e6994964a15aa7ec8d13a72daafa016e0d2ca638b43e6e21cf077fc8f96bbc61

      • memory/216-141-0x0000000000000000-mapping.dmp

      • memory/308-138-0x0000000000000000-mapping.dmp

      • memory/2084-132-0x0000000002FC0000-0x000000000308B000-memory.dmp

        Filesize

        812KB