Analysis

  • max time kernel
    147s
  • max time network
    196s
  • 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 22:01

General

  • Target

    95a3d342699bfef7257d5ad1b13cf3cf3ae13fb5351891fa21660c6c1c9b06c5.exe

  • Size

    3.5MB

  • MD5

    3149b31c9372651ece844204d45c795c

  • SHA1

    4abf2378ba73eded7ee8c97e81780a007979b983

  • SHA256

    95a3d342699bfef7257d5ad1b13cf3cf3ae13fb5351891fa21660c6c1c9b06c5

  • SHA512

    e57729d0d42b9156bf0fd81a6b5234bae4369525d7710099c39e3d6077d5e1f521bee39d7994b75931d1f475fdd859f5fc84213217c96b5adffaec78b033c69a

  • SSDEEP

    98304:AMZDv7EqY3veK9Dn2vypAqJ5c2s9DQ4JM0:AAa2vypAqJ5WM

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 18 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\95a3d342699bfef7257d5ad1b13cf3cf3ae13fb5351891fa21660c6c1c9b06c5.exe
    "C:\Users\Admin\AppData\Local\Temp\95a3d342699bfef7257d5ad1b13cf3cf3ae13fb5351891fa21660c6c1c9b06c5.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:3816
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:1292
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
    1⤵
      PID:3196
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
      1⤵
        PID:3976

      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)\TinyWallet\T1p95LzSw50H1n.dat
        Filesize

        3KB

        MD5

        ec9ea4b418be197c57a9b2200b66ee0b

        SHA1

        524dd41ed5fe72cbffd68daf7cd107950b517150

        SHA256

        61883ae7fd121d60e70b59d11f04c9d1cc2736df69fa35a4d19d949ded196ed6

        SHA512

        49c7715f56ac85ca45e54a154a7f21dc6391d8380ee84e92c4cba951e14d3f06cb3bb917f705c7937bd87630efb4075bf0d009e893c9b44ea77d60b088dea29a

      • C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.dll
        Filesize

        611KB

        MD5

        123fde8f1a45be2f971b36a8ae5457ef

        SHA1

        78f77c976bec0b388407f986e7866818512eec97

        SHA256

        12869f73fb78fcbb8876e10772d081890b19fd1e228dd83ca012416cf26e931e

        SHA512

        4ae3708e45e15a49e7ba1d338a9186ed47f41abe57727d57833a33be887043dcb950d02bc52f79ee414df0df56c3e87f213995fa222a6f0e1c659393860231d9

      • C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.tlb
        Filesize

        3KB

        MD5

        d5c4233a6c3de331b459f5f6a35ae3dd

        SHA1

        b5f1bf145f4e0896d7ae500abecbfaca715c18ab

        SHA256

        f3fca93b2a2848af13dcd30cad6305d20319d0a96f622f96753c1aebb91c885c

        SHA512

        4af48daa80dcd76cf45018d7edef74f35c5917457dd598f5a2071bba8875d75280326e41f3f5885d5301a596c22a3833cb062e2f4c97e0d83a01ad2644056e76

      • C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.x64.dll
        Filesize

        693KB

        MD5

        c59945c3f5074d51077f2d598680aa11

        SHA1

        7d2ab4599f476d9da677283bdfcff5164a30b2e7

        SHA256

        10658a9b7ad99f84d73c77bde58761c89f37b1318f90197710d63824ae894b5b

        SHA512

        d3ccea87caba7d10776c0d4726b26cad81e85562270a1c873a59ab59a0d73336bae0af6cb6a242fb8f1b4cb4278636ed9995bd03f4f0b32d84a705e19a7b7e61

      • C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.x64.dll
        Filesize

        693KB

        MD5

        c59945c3f5074d51077f2d598680aa11

        SHA1

        7d2ab4599f476d9da677283bdfcff5164a30b2e7

        SHA256

        10658a9b7ad99f84d73c77bde58761c89f37b1318f90197710d63824ae894b5b

        SHA512

        d3ccea87caba7d10776c0d4726b26cad81e85562270a1c873a59ab59a0d73336bae0af6cb6a242fb8f1b4cb4278636ed9995bd03f4f0b32d84a705e19a7b7e61

      • C:\Program Files (x86)\TinyWallet\T1p95LzSw50H1n.x64.dll
        Filesize

        693KB

        MD5

        c59945c3f5074d51077f2d598680aa11

        SHA1

        7d2ab4599f476d9da677283bdfcff5164a30b2e7

        SHA256

        10658a9b7ad99f84d73c77bde58761c89f37b1318f90197710d63824ae894b5b

        SHA512

        d3ccea87caba7d10776c0d4726b26cad81e85562270a1c873a59ab59a0d73336bae0af6cb6a242fb8f1b4cb4278636ed9995bd03f4f0b32d84a705e19a7b7e61

      • memory/1292-141-0x0000000000000000-mapping.dmp
      • memory/3816-132-0x0000000003640000-0x00000000036E5000-memory.dmp
        Filesize

        660KB

      • memory/4092-138-0x0000000000000000-mapping.dmp