Analysis

  • max time kernel
    126s
  • max time network
    156s
  • 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 08:02

General

  • Target

    39df1f0c0110b40458e55b38480051681bf7997f1c67decce978fee4a115e950.exe

  • Size

    3.8MB

  • MD5

    d389e9bdb0437082ddeb0ee7c8684952

  • SHA1

    434cabeed27d4d1a9bf24f18fd4a247eeeb26621

  • SHA256

    39df1f0c0110b40458e55b38480051681bf7997f1c67decce978fee4a115e950

  • SHA512

    0ddbce3e92e2b1fb720fe88df2acbcabd7195bef8b8705c3783aa888a1bb14affe7afea1637ef17da5f82c77e09e5c5062c60e1e0be7471226c04d3353a44132

  • SSDEEP

    98304:mc5Nt3jPkS5AyfVojiD53dtfBaskSxho:hASh53dtwK

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 16 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\39df1f0c0110b40458e55b38480051681bf7997f1c67decce978fee4a115e950.exe
    "C:\Users\Admin\AppData\Local\Temp\39df1f0c0110b40458e55b38480051681bf7997f1c67decce978fee4a115e950.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:5080
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4884
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:3308
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:2420
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:376

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.dat
        Filesize

        4KB

        MD5

        303283515c826a34ec5608b33166ab34

        SHA1

        24bb8b3e89c1645bb739364ef2cbed95bff824ba

        SHA256

        9bdc8eaf04e71166983ff76a7590794c72ebd535de06294a5ef17ee254d4a446

        SHA512

        aaac3ad07a4f9febc5f72d1386020813bae03e4a4f5a04398f22bea95685c2068f2ba9174e97429a318ac3c0a331a31047a2f70bdfe2b0d0f09bb0685ab830af

      • C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.dll
        Filesize

        622KB

        MD5

        18302eec6f8f71f505986c43101e2742

        SHA1

        c370c11f8722a7e31175862f532fa49dbf5ec7dc

        SHA256

        9a6a2bcf52012cbb3497838a8db024da0d6a07a30c0f71bd22748b24bbf631d5

        SHA512

        bb1a3b446ee2b4145c186b53e99ae4297e2e33159f6ae8d64b2d57d326a8f546f82d49f8a772b7dc2016722c7c0f0c00feccab4ca9005865772d9591da0b2227

      • C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.tlb
        Filesize

        3KB

        MD5

        a6a73f1a452ca95398b6dc3fd5e17164

        SHA1

        c9ac5a4c9f748a7d9511e354b0a7e70756150e16

        SHA256

        9ee94cc3fe8448ee7f2758a8a4834e220744544954cc4eac820a2392eb8a0692

        SHA512

        3ad4f49cb336cd559d57003be0b651996069dc1b585501f534f50ba33e2eaa456f0d876e20b77c91d03c17aa5151510535b6aa75e3591dc9188f3910d3de40a5

      • C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.x64.dll
        Filesize

        701KB

        MD5

        e871358a5ec05daf462f0207ac39f057

        SHA1

        329a89f3f034faef6de160b50661854a851671fa

        SHA256

        dfcb071f1af3cdef73955a74b91a4c71893d1e251a3c40b53397db6013d5581d

        SHA512

        9b8da63c4204c8f1846b413ee2b1040270e626bb96a0eac763bdfba5997811c38a608f033e1bdfc1a09fd124c1998c5214e572e74c3580d8f4134b705b8dfc9e

      • C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.x64.dll
        Filesize

        701KB

        MD5

        e871358a5ec05daf462f0207ac39f057

        SHA1

        329a89f3f034faef6de160b50661854a851671fa

        SHA256

        dfcb071f1af3cdef73955a74b91a4c71893d1e251a3c40b53397db6013d5581d

        SHA512

        9b8da63c4204c8f1846b413ee2b1040270e626bb96a0eac763bdfba5997811c38a608f033e1bdfc1a09fd124c1998c5214e572e74c3580d8f4134b705b8dfc9e

      • C:\Program Files (x86)\PricieLeess\VcxxdclcMiih4r.x64.dll
        Filesize

        701KB

        MD5

        e871358a5ec05daf462f0207ac39f057

        SHA1

        329a89f3f034faef6de160b50661854a851671fa

        SHA256

        dfcb071f1af3cdef73955a74b91a4c71893d1e251a3c40b53397db6013d5581d

        SHA512

        9b8da63c4204c8f1846b413ee2b1040270e626bb96a0eac763bdfba5997811c38a608f033e1bdfc1a09fd124c1998c5214e572e74c3580d8f4134b705b8dfc9e

      • memory/3308-141-0x0000000000000000-mapping.dmp
      • memory/4884-138-0x0000000000000000-mapping.dmp
      • memory/5080-132-0x0000000003250000-0x00000000032F3000-memory.dmp
        Filesize

        652KB