Analysis

  • max time kernel
    189s
  • max time network
    212s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-11-2022 17:08

General

  • Target

    f194d778990f7a1b30738285be883adde43631c7d94e08b522b4c9889189ccd1.exe

  • Size

    4.2MB

  • MD5

    b0521765159491bc4098b2c04fa392fe

  • SHA1

    444a8d44ebb1b6037d0892d92afb2c37c1c5f48a

  • SHA256

    f194d778990f7a1b30738285be883adde43631c7d94e08b522b4c9889189ccd1

  • SHA512

    fd90a00229754b7d02bd744e8bd5294765c8a2c45a88f8f64e9f2b0cb0f93b418cbed7dc0a1eff08be396cc64e0fb3b0c07cba4902b1d82a1710e7ad8f9f72c6

  • SSDEEP

    49152:fIGKW46/4dVemXfVCxdYgcsVrxR9VadbdEkoCfLeCyvJ+2ZyUReq7TLziv:A5W54dVem9C4ghXObdlqCyFZvR3z

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\f194d778990f7a1b30738285be883adde43631c7d94e08b522b4c9889189ccd1.exe
    "C:\Users\Admin\AppData\Local\Temp\f194d778990f7a1b30738285be883adde43631c7d94e08b522b4c9889189ccd1.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:5020
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:3816
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:3640
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:220
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:224

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Browser Extensions

      1
      T1176

      Defense Evasion

      Modify Registry

      3
      T1112

      Credential Access

      Credentials in Files

      1
      T1081

      Discovery

      Query Registry

      1
      T1012

      Collection

      Data from Local System

      1
      T1005

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.dat
        Filesize

        3KB

        MD5

        1e682f14c8ebfc6a78d7f4fde8fa6740

        SHA1

        9416e9905d4b9a18231b544cb9a01b09e81ad2f3

        SHA256

        48d423e453c3a8c50ee73ef449cfbe7b92b241bc26fbcfca5db5c6dbec42821f

        SHA512

        ab5817834a4c917ed62c67f567b9d0b2f8687ab6d86abcf0f5f32c69ffd4718e44efb57683149be9f6be5f5bda406de0a67d3bcb85c3938e8ecd96f6766f5cf9

      • C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.dll
        Filesize

        740KB

        MD5

        f37095c241e62cc8b66a00a187fd1155

        SHA1

        82a9120f26b4e76df5fe123a5176d28aa898b23c

        SHA256

        0810e4c7b6fb4ad3f7a3abee5bf321f720515e6c3e605c9348bc51e741906874

        SHA512

        eab1bdf2b0f79af777ce967d02789cf3fc39a09fafa43ff230a650bc42e871538e98953479a2849249d765037dc92175069335d8010da4fc1286f48a088b8b9b

      • C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.tlb
        Filesize

        3KB

        MD5

        dad7dc8242a2925ade239718a506374e

        SHA1

        08d7aba181e62216e2976c15a9107b760e0ef3ab

        SHA256

        7dd64eeefd4900b4ef39b47ef2cbe5cf6f7e184ca74dedb351c749c60d39981b

        SHA512

        71dd707836f3415c8b36cc485a879f82d3d5bd0cae95b891eb8cc3fcb3a3ada8f3fa53b68a06a866bca111b8c72d75bcefc118c9785fa20178cf13c4e57ac8ea

      • C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.x64.dll
        Filesize

        875KB

        MD5

        0c3a0b1a34377f22a3a16b868c74205c

        SHA1

        d24dd7c000de9f860b66a66539ea145feb8d94cc

        SHA256

        4744114a0e7734acac9ec0e7c91da4074811f5b71349d235491da22a3f6293fc

        SHA512

        0785ea18a70c03858026fe056c630a83231db8941407766cca99ab8414868943e6994964a15aa7ec8d13a72daafa016e0d2ca638b43e6e21cf077fc8f96bbc61

      • C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.x64.dll
        Filesize

        875KB

        MD5

        0c3a0b1a34377f22a3a16b868c74205c

        SHA1

        d24dd7c000de9f860b66a66539ea145feb8d94cc

        SHA256

        4744114a0e7734acac9ec0e7c91da4074811f5b71349d235491da22a3f6293fc

        SHA512

        0785ea18a70c03858026fe056c630a83231db8941407766cca99ab8414868943e6994964a15aa7ec8d13a72daafa016e0d2ca638b43e6e21cf077fc8f96bbc61

      • C:\Program Files (x86)\PriceLess\rxt2NsXCzNZi1k.x64.dll
        Filesize

        875KB

        MD5

        0c3a0b1a34377f22a3a16b868c74205c

        SHA1

        d24dd7c000de9f860b66a66539ea145feb8d94cc

        SHA256

        4744114a0e7734acac9ec0e7c91da4074811f5b71349d235491da22a3f6293fc

        SHA512

        0785ea18a70c03858026fe056c630a83231db8941407766cca99ab8414868943e6994964a15aa7ec8d13a72daafa016e0d2ca638b43e6e21cf077fc8f96bbc61

      • memory/3640-141-0x0000000000000000-mapping.dmp
      • memory/3816-138-0x0000000000000000-mapping.dmp
      • memory/5020-132-0x00000000037B0000-0x000000000387B000-memory.dmp
        Filesize

        812KB