Analysis

  • max time kernel
    150s
  • max time network
    106s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    05-03-2021 16:02

General

  • Target

    Smash Installer for Windows/1.exe

  • Size

    877KB

  • MD5

    d86660dabe13d725cc14711d45d88182

  • SHA1

    0be41dddc0d60f9d005ad9bad661c02d60f79836

  • SHA256

    1fd155e7fc507bd4df5d7c8ee6f5bf97cff1c38c8d2980d5ab6724065f22e2dc

  • SHA512

    d014cb4dee7f58b12e9bc8d88c36bb0255832395da8b7365e529f9ae80ec0fd1658826d76a94b27a000aaa04820aa713f5022dbebfeddd007eb30b02cb043fa5

Malware Config

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 1 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies data under HKEY_USERS 24 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Smash Installer for Windows\1.exe
    "C:\Users\Admin\AppData\Local\Temp\Smash Installer for Windows\1.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
      C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        "{path}"
        3⤵
        • Executes dropped EXE
        PID:1784
      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        "{path}"
        3⤵
        • Executes dropped EXE
        PID:908
      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        "{path}"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1380
  • C:\Windows\explorer.exe
    "C:\Windows\explorer.exe"
    1⤵
      PID:1748
    • C:\Windows\system32\SearchIndexer.exe
      C:\Windows\system32\SearchIndexer.exe /Embedding
      1⤵
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\system32\SearchProtocolHost.exe
        "C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe_S-1-5-21-3825035466-2522850611-591511364-10001_ Global\UsGthrCtrlFltPipeMssGthrPipe_S-1-5-21-3825035466-2522850611-591511364-10001 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon" "1"
        2⤵
        • Suspicious use of SetWindowsHookEx
        PID:1148
      • C:\Windows\system32\SearchFilterHost.exe
        "C:\Windows\system32\SearchFilterHost.exe" 0 512 516 524 65536 520
        2⤵
          PID:1780
        • C:\Windows\system32\SearchProtocolHost.exe
          "C:\Windows\system32\SearchProtocolHost.exe" Global\UsGthrFltPipeMssGthrPipe2_ Global\UsGthrCtrlFltPipeMssGthrPipe2 1 -2147483646 "Software\Microsoft\Windows Search" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT; MS Search 4.0 Robot)" "C:\ProgramData\Microsoft\Search\Data\Temp\usgthrsvc" "DownLevelDaemon"
          2⤵
          • Modifies data under HKEY_USERS
          • Suspicious use of SetWindowsHookEx
          PID:1084

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      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:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        MD5

        b0f334d66d229c117593ae386039773f

        SHA1

        7de1d1c69e68fd307ea8343870bbb6d2d920fd8d

        SHA256

        3476de11fd6119df1625b4502ec861b8fe727adcc3d46f5f4e10da4ee24ed506

        SHA512

        33923437d83fa728520a31335d8f88e7034585e3aeada56700838ac0f494bc3226a9557a7d6b59042dcda9c968e56adf2e570585591c3311f35e3c5477b885b3

      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        MD5

        b0f334d66d229c117593ae386039773f

        SHA1

        7de1d1c69e68fd307ea8343870bbb6d2d920fd8d

        SHA256

        3476de11fd6119df1625b4502ec861b8fe727adcc3d46f5f4e10da4ee24ed506

        SHA512

        33923437d83fa728520a31335d8f88e7034585e3aeada56700838ac0f494bc3226a9557a7d6b59042dcda9c968e56adf2e570585591c3311f35e3c5477b885b3

      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        MD5

        b0f334d66d229c117593ae386039773f

        SHA1

        7de1d1c69e68fd307ea8343870bbb6d2d920fd8d

        SHA256

        3476de11fd6119df1625b4502ec861b8fe727adcc3d46f5f4e10da4ee24ed506

        SHA512

        33923437d83fa728520a31335d8f88e7034585e3aeada56700838ac0f494bc3226a9557a7d6b59042dcda9c968e56adf2e570585591c3311f35e3c5477b885b3

      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        MD5

        b0f334d66d229c117593ae386039773f

        SHA1

        7de1d1c69e68fd307ea8343870bbb6d2d920fd8d

        SHA256

        3476de11fd6119df1625b4502ec861b8fe727adcc3d46f5f4e10da4ee24ed506

        SHA512

        33923437d83fa728520a31335d8f88e7034585e3aeada56700838ac0f494bc3226a9557a7d6b59042dcda9c968e56adf2e570585591c3311f35e3c5477b885b3

      • C:\ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        MD5

        b0f334d66d229c117593ae386039773f

        SHA1

        7de1d1c69e68fd307ea8343870bbb6d2d920fd8d

        SHA256

        3476de11fd6119df1625b4502ec861b8fe727adcc3d46f5f4e10da4ee24ed506

        SHA512

        33923437d83fa728520a31335d8f88e7034585e3aeada56700838ac0f494bc3226a9557a7d6b59042dcda9c968e56adf2e570585591c3311f35e3c5477b885b3

      • \ProgramData\wmgDt5qbkprBPEvHJq3Cd9WrLH.tmp
        MD5

        b0f334d66d229c117593ae386039773f

        SHA1

        7de1d1c69e68fd307ea8343870bbb6d2d920fd8d

        SHA256

        3476de11fd6119df1625b4502ec861b8fe727adcc3d46f5f4e10da4ee24ed506

        SHA512

        33923437d83fa728520a31335d8f88e7034585e3aeada56700838ac0f494bc3226a9557a7d6b59042dcda9c968e56adf2e570585591c3311f35e3c5477b885b3

      • memory/316-24-0x000007FEF6E90000-0x000007FEF710A000-memory.dmp
        Filesize

        2.5MB

      • memory/692-4-0x000007FEF6E90000-0x000007FEF710A000-memory.dmp
        Filesize

        2.5MB

      • memory/1084-27-0x0000000000000000-mapping.dmp
      • memory/1148-25-0x0000000000000000-mapping.dmp
      • memory/1380-20-0x0000000073870000-0x0000000073F5E000-memory.dmp
        Filesize

        6.9MB

      • memory/1380-18-0x000000000041FFAA-mapping.dmp
      • memory/1380-23-0x0000000004A10000-0x0000000004A11000-memory.dmp
        Filesize

        4KB

      • memory/1380-21-0x0000000000400000-0x0000000000426000-memory.dmp
        Filesize

        152KB

      • memory/1380-17-0x0000000000400000-0x0000000000426000-memory.dmp
        Filesize

        152KB

      • memory/1540-6-0x0000000000000000-mapping.dmp
      • memory/1540-14-0x0000000004A90000-0x0000000004AD7000-memory.dmp
        Filesize

        284KB

      • memory/1540-12-0x0000000000570000-0x0000000000571000-memory.dmp
        Filesize

        4KB

      • memory/1540-13-0x0000000001D10000-0x0000000001D1B000-memory.dmp
        Filesize

        44KB

      • memory/1540-10-0x0000000000290000-0x0000000000291000-memory.dmp
        Filesize

        4KB

      • memory/1540-9-0x0000000073870000-0x0000000073F5E000-memory.dmp
        Filesize

        6.9MB

      • memory/1748-3-0x000007FEFB541000-0x000007FEFB543000-memory.dmp
        Filesize

        8KB

      • memory/1780-26-0x0000000000000000-mapping.dmp
      • memory/1932-2-0x00000000750C1000-0x00000000750C3000-memory.dmp
        Filesize

        8KB