Analysis

  • max time kernel
    153s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 17:10

General

  • Target

    56ab40d65b4f1298a713a0cb643567f19748dc551b4d3496c29be1ba647d288f.exe

  • Size

    3.8MB

  • MD5

    be4e66323f2ec33927a9b79700f2d72c

  • SHA1

    6d424aa461cea9eac97ea5e99790e06bd6e56781

  • SHA256

    56ab40d65b4f1298a713a0cb643567f19748dc551b4d3496c29be1ba647d288f

  • SHA512

    c7756b8edc0317366bd42276844f7cf7fbe4fdd17fd6f27b9ebc7d13f1bd3dd97b56b0f29057f5bd24c426a23f1eb4a7c88b9c158ff9ff811056cf750d5057a0

  • SSDEEP

    98304:8dkFv+TNq5bJm3wcbzxUULZJLqL7kAEpEGT0AJ7t9LVvrY5eA7iWFUsR48p+pqH:8di+T0RJm3t9c

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\56ab40d65b4f1298a713a0cb643567f19748dc551b4d3496c29be1ba647d288f.exe
    "C:\Users\Admin\AppData\Local\Temp\56ab40d65b4f1298a713a0cb643567f19748dc551b4d3496c29be1ba647d288f.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:4320
    • C:\Windows\SysWOW64\regsvr32.exe
      regsvr32.exe /s "C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.x64.dll"
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:4940
      • C:\Windows\system32\regsvr32.exe
        /s "C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.x64.dll"
        3⤵
        • Registers COM server for autorun
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies Internet Explorer settings
        • Modifies registry class
        PID:4492
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s fhsvc
    1⤵
      PID:3144
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -s WPDBusEnum
      1⤵
        PID:860

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.dat

        Filesize

        4KB

        MD5

        30d522367a6ff77a7a8485361ba87b2e

        SHA1

        d11e4604fce07c1deca652345e9f7a8fe73bd25a

        SHA256

        24c983476f2f5c94e877ba8f2df7932040c385a8a470a803179955980425b448

        SHA512

        8e701ffeea6d94a6e3ae14621737e98184aaab17141edc1251a865be2846ef99f45bb12a04cc86369d9d11daf6e53cc172a1c23481f2893d4f9d4dbce4434311

      • C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.dll

        Filesize

        615KB

        MD5

        7bcbc1267b58f0b7147373180de1f7f0

        SHA1

        683da53d33a2889f3cbab02e1678528490f10916

        SHA256

        c8ea6a0b4bddd26d19c10d32ee92cacfa87ec68d4412ae2d15ee4e7038f1b666

        SHA512

        1594cec496a4068eb3a417f4643837412cbd9fbc4349517d8705449dace091db2d89b8496ffe20651fcc6b0d77e94211924ebddc764d910ef0cb86e72a715a67

      • C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.tlb

        Filesize

        3KB

        MD5

        9118531242e7d086042b37efdce9b101

        SHA1

        ecc5947911756c031900a0f75ae15a8d627321dc

        SHA256

        a9510cbaa4561de318f727888576e387537db2848a95477a3940556752dfb306

        SHA512

        e4bf0104ba69741baf752535f92d5e763f7df099a7da8be7eb8e9307a0bd08eb8625ae991d8cfa21a6ac9e10e4f55b00d70b8220b4fad94761e79e4c69ac2f6c

      • C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.x64.dll

        Filesize

        693KB

        MD5

        5998913e8943a7b684210fe19bad1e0e

        SHA1

        5c745d6faf13ffbc271fd661e5f18365fb6bac46

        SHA256

        11ef4753bd4abdf9ec650a637fecd8a549b5c08b6742554f228e222a76a1a1f6

        SHA512

        a0dc8441fe7c6aee3b43529ca5b0a7f77aad95dd58c6a7ebd47f3e9233e106ae321e5f77ae2675483e3f86f61e8ac2dc8750e2618265ae19575bc17cbd61aeef

      • C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.x64.dll

        Filesize

        693KB

        MD5

        5998913e8943a7b684210fe19bad1e0e

        SHA1

        5c745d6faf13ffbc271fd661e5f18365fb6bac46

        SHA256

        11ef4753bd4abdf9ec650a637fecd8a549b5c08b6742554f228e222a76a1a1f6

        SHA512

        a0dc8441fe7c6aee3b43529ca5b0a7f77aad95dd58c6a7ebd47f3e9233e106ae321e5f77ae2675483e3f86f61e8ac2dc8750e2618265ae19575bc17cbd61aeef

      • C:\Program Files (x86)\TTinyWallet\MvWsBqev4KKSvj.x64.dll

        Filesize

        693KB

        MD5

        5998913e8943a7b684210fe19bad1e0e

        SHA1

        5c745d6faf13ffbc271fd661e5f18365fb6bac46

        SHA256

        11ef4753bd4abdf9ec650a637fecd8a549b5c08b6742554f228e222a76a1a1f6

        SHA512

        a0dc8441fe7c6aee3b43529ca5b0a7f77aad95dd58c6a7ebd47f3e9233e106ae321e5f77ae2675483e3f86f61e8ac2dc8750e2618265ae19575bc17cbd61aeef

      • memory/4320-132-0x0000000002DD0000-0x0000000002E74000-memory.dmp

        Filesize

        656KB

      • memory/4492-141-0x0000000000000000-mapping.dmp

      • memory/4940-138-0x0000000000000000-mapping.dmp