Analysis

  • max time kernel
    59s
  • max time network
    182s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    12-05-2022 15:48

General

  • Target

    f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782.exe

  • Size

    579KB

  • MD5

    f9061b35c7ed637323aac46c5d15d002

  • SHA1

    797b13720bbc9ae30134fb421941e02ba73d7bd4

  • SHA256

    f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782

  • SHA512

    da07e25ae000328dce3ae94e1e8ef7737813767975d400bfceabcc0fb63c75582b274cc07724295e1ff675d9f69c69885946dc276ebd4c8554b4819ce54f2408

Malware Config

Extracted

Family

matiex

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.porkbun.com
  • Port:
    587
  • Username:
    info@wholesalesltd.xyz
  • Password:
    godisable147

Signatures

  • Matiex

    Matiex is a keylogger and infostealer first seen in July 2020.

  • Matiex Main Payload 11 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs
  • Looks up external IP address via web service 5 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • NTFS ADS 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 29 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782.exe
    "C:\Users\Admin\AppData\Local\Temp\f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:988
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      PID:1272
    • C:\Users\Admin\AppData\Local\Temp\svhost.exe
      "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1160
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c copy "C:/Users/Admin/AppData/Local/Temp/f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782.exe" "%temp%\FolderN\name.exe" /Y
      2⤵
        PID:1936
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "%temp%\FolderN\name.exe.lnk" /f
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:360
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe.lnk" /f
          3⤵
            PID:824
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c echo [zoneTransfer]ZoneID = 2 > %temp%\FolderN\name.exe:Zone.Identifier
          2⤵
          • NTFS ADS
          PID:1520

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Credential Access

      Credentials in Files

      2
      T1081

      Discovery

      System Information Discovery

      1
      T1082

      Collection

      Data from Local System

      2
      T1005

      Email Collection

      1
      T1114

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\FolderN\name.exe
        Filesize

        579KB

        MD5

        f9061b35c7ed637323aac46c5d15d002

        SHA1

        797b13720bbc9ae30134fb421941e02ba73d7bd4

        SHA256

        f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782

        SHA512

        da07e25ae000328dce3ae94e1e8ef7737813767975d400bfceabcc0fb63c75582b274cc07724295e1ff675d9f69c69885946dc276ebd4c8554b4819ce54f2408

      • C:\Users\Admin\AppData\Local\Temp\svhost.exe
        Filesize

        255KB

        MD5

        9af17c8393f0970ee5136bd3ffa27001

        SHA1

        4b285b72c1a11285a25f31f2597e090da6bbc049

        SHA256

        71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019

        SHA512

        b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3

      • C:\Users\Admin\AppData\Local\Temp\svhost.exe
        Filesize

        255KB

        MD5

        9af17c8393f0970ee5136bd3ffa27001

        SHA1

        4b285b72c1a11285a25f31f2597e090da6bbc049

        SHA256

        71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019

        SHA512

        b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3

      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        Filesize

        425KB

        MD5

        34e884a790a7ef67f7c61108e2b9a177

        SHA1

        6ad5021f86a6d361a9771001a506ff8b8bf1930a

        SHA256

        5f1ce1d8e909e4fc999dd5a1fea71103cff35e075750117c8d9e3ec5045f09f0

        SHA512

        79e5fcd411321f1b09b67cc36a2dbeaf88731bd1ebf41cf53d21ed4d7f476b7193c40c33dcc652d707240ec45818b730732465c2a4a329c8ea7dd4d020aea2e8

      • C:\Users\Admin\AppData\Local\Temp\tmp.exe
        Filesize

        425KB

        MD5

        34e884a790a7ef67f7c61108e2b9a177

        SHA1

        6ad5021f86a6d361a9771001a506ff8b8bf1930a

        SHA256

        5f1ce1d8e909e4fc999dd5a1fea71103cff35e075750117c8d9e3ec5045f09f0

        SHA512

        79e5fcd411321f1b09b67cc36a2dbeaf88731bd1ebf41cf53d21ed4d7f476b7193c40c33dcc652d707240ec45818b730732465c2a4a329c8ea7dd4d020aea2e8

      • \Users\Admin\AppData\Local\Temp\FolderN\name.exe
        Filesize

        579KB

        MD5

        f9061b35c7ed637323aac46c5d15d002

        SHA1

        797b13720bbc9ae30134fb421941e02ba73d7bd4

        SHA256

        f9bf4cfd9b01450f92f9b0e1e329fdf4b31b234f60607b626a258aa6cbf40782

        SHA512

        da07e25ae000328dce3ae94e1e8ef7737813767975d400bfceabcc0fb63c75582b274cc07724295e1ff675d9f69c69885946dc276ebd4c8554b4819ce54f2408

      • \Users\Admin\AppData\Local\Temp\svhost.exe
        Filesize

        255KB

        MD5

        9af17c8393f0970ee5136bd3ffa27001

        SHA1

        4b285b72c1a11285a25f31f2597e090da6bbc049

        SHA256

        71d6a7a3fe5f8dc878cd5bdeca0e09177efb85c01e9a8a10a95262cabefaa019

        SHA512

        b90f7de7d5ce72dccb264c7ba609e173c529b9d99ed9a63f88632bc58b1a994bbb727365f519c73b979f8918bd6de3c39a9f0347eb3a4bccdce4b2772a6516a3

      • \Users\Admin\AppData\Local\Temp\tmp.exe
        Filesize

        425KB

        MD5

        34e884a790a7ef67f7c61108e2b9a177

        SHA1

        6ad5021f86a6d361a9771001a506ff8b8bf1930a

        SHA256

        5f1ce1d8e909e4fc999dd5a1fea71103cff35e075750117c8d9e3ec5045f09f0

        SHA512

        79e5fcd411321f1b09b67cc36a2dbeaf88731bd1ebf41cf53d21ed4d7f476b7193c40c33dcc652d707240ec45818b730732465c2a4a329c8ea7dd4d020aea2e8

      • memory/360-83-0x0000000000000000-mapping.dmp
      • memory/824-84-0x0000000000000000-mapping.dmp
      • memory/988-54-0x0000000000C40000-0x0000000000CD6000-memory.dmp
        Filesize

        600KB

      • memory/988-55-0x0000000076571000-0x0000000076573000-memory.dmp
        Filesize

        8KB

      • memory/1160-68-0x000000000046BADE-mapping.dmp
      • memory/1160-66-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-71-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-75-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-78-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-70-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-65-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-63-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1160-62-0x0000000000080000-0x00000000000F0000-memory.dmp
        Filesize

        448KB

      • memory/1272-60-0x0000000000D30000-0x0000000000DA0000-memory.dmp
        Filesize

        448KB

      • memory/1272-57-0x0000000000000000-mapping.dmp
      • memory/1520-87-0x0000000000000000-mapping.dmp
      • memory/1936-82-0x0000000000000000-mapping.dmp