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Analysis

  • max time kernel
    114s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/04/2024, 13:21

General

  • Target

    ungziped_file.exe

  • Size

    749KB

  • MD5

    2cb429d144a84ae31ac8ecf48fa862fb

  • SHA1

    379f1f62d047fa603ea0b933b526ed8ce9388be9

  • SHA256

    2c06313c7db4b165b18717a7998239c5e64a9ddfbd7f3b57fc5cc11a973ac07f

  • SHA512

    07dcce7087439d49084786eb54a98a898e4764c69d1850a5a0e7b72cd73f27408ffec7089e4730c680cf8e4b3b7fbc44981dfacad6d449ec785c32504d2b7d9f

  • SSDEEP

    12288:FayNBwyr2HPWyd3eOC6hcO+JeQB9B279Avons1puKUoeRSs39:IyNCyrePWceOC6P8v844oer9

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.leema.lk
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    V[3ALIg~jl}T

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Looks up external IP address via web service 2 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).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe
    "C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2964
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\xIKNTJWHvijOQ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3384
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\xIKNTJWHvijOQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF165.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4904
    • C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe
      "C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"
      2⤵
        PID:3144
      • C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe
        "C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"
        2⤵
          PID:4492
        • C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe
          "C:\Users\Admin\AppData\Local\Temp\ungziped_file.exe"
          2⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4020

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xshutdcj.o2v.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpF165.tmp

        Filesize

        1KB

        MD5

        62b92b0f0457f7abd6c1070560f1b07f

        SHA1

        f079430eb54908d2e610864ca53c1c5b5096875f

        SHA256

        5d10679877ab37e1ce3e3e8c865e3e0ccb407caf615f6853a747ab00afa83419

        SHA512

        b6704c0e3d76888de3e4f5c5917489ad580d81ee1ade4180e6511e468914b4cda77b4977c707488fc3bb9713678b9437d705d082975197a4b29220214780c169

      • memory/2964-6-0x00000000062F0000-0x0000000006302000-memory.dmp

        Filesize

        72KB

      • memory/2964-3-0x0000000004EA0000-0x0000000004F32000-memory.dmp

        Filesize

        584KB

      • memory/2964-4-0x0000000004E80000-0x0000000004E90000-memory.dmp

        Filesize

        64KB

      • memory/2964-5-0x0000000004E40000-0x0000000004E4A000-memory.dmp

        Filesize

        40KB

      • memory/2964-2-0x00000000053B0000-0x0000000005954000-memory.dmp

        Filesize

        5.6MB

      • memory/2964-7-0x0000000006310000-0x0000000006318000-memory.dmp

        Filesize

        32KB

      • memory/2964-8-0x0000000006320000-0x000000000632C000-memory.dmp

        Filesize

        48KB

      • memory/2964-9-0x0000000006350000-0x00000000063D2000-memory.dmp

        Filesize

        520KB

      • memory/2964-10-0x0000000009D60000-0x0000000009DFC000-memory.dmp

        Filesize

        624KB

      • memory/2964-0-0x0000000000390000-0x0000000000452000-memory.dmp

        Filesize

        776KB

      • memory/2964-1-0x0000000074610000-0x0000000074DC0000-memory.dmp

        Filesize

        7.7MB

      • memory/2964-25-0x0000000074610000-0x0000000074DC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-58-0x0000000006E30000-0x0000000006E4A000-memory.dmp

        Filesize

        104KB

      • memory/3384-54-0x00000000045D0000-0x00000000045E0000-memory.dmp

        Filesize

        64KB

      • memory/3384-20-0x00000000045D0000-0x00000000045E0000-memory.dmp

        Filesize

        64KB

      • memory/3384-69-0x0000000074610000-0x0000000074DC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-23-0x0000000004B20000-0x0000000004B42000-memory.dmp

        Filesize

        136KB

      • memory/3384-16-0x0000000074610000-0x0000000074DC0000-memory.dmp

        Filesize

        7.7MB

      • memory/3384-26-0x00000000053F0000-0x0000000005456000-memory.dmp

        Filesize

        408KB

      • memory/3384-66-0x0000000007150000-0x0000000007158000-memory.dmp

        Filesize

        32KB

      • memory/3384-27-0x00000000054D0000-0x0000000005536000-memory.dmp

        Filesize

        408KB

      • memory/3384-18-0x00000000045D0000-0x00000000045E0000-memory.dmp

        Filesize

        64KB

      • memory/3384-65-0x0000000007170000-0x000000000718A000-memory.dmp

        Filesize

        104KB

      • memory/3384-38-0x00000000056D0000-0x0000000005A24000-memory.dmp

        Filesize

        3.3MB

      • memory/3384-39-0x0000000005AD0000-0x0000000005AEE000-memory.dmp

        Filesize

        120KB

      • memory/3384-40-0x0000000005B20000-0x0000000005B6C000-memory.dmp

        Filesize

        304KB

      • memory/3384-42-0x000000007F4A0000-0x000000007F4B0000-memory.dmp

        Filesize

        64KB

      • memory/3384-41-0x0000000006A80000-0x0000000006AB2000-memory.dmp

        Filesize

        200KB

      • memory/3384-43-0x0000000070790000-0x00000000707DC000-memory.dmp

        Filesize

        304KB

      • memory/3384-19-0x0000000004C10000-0x0000000005238000-memory.dmp

        Filesize

        6.2MB

      • memory/3384-53-0x0000000006AE0000-0x0000000006AFE000-memory.dmp

        Filesize

        120KB

      • memory/3384-55-0x00000000045D0000-0x00000000045E0000-memory.dmp

        Filesize

        64KB

      • memory/3384-56-0x0000000006B00000-0x0000000006BA3000-memory.dmp

        Filesize

        652KB

      • memory/3384-57-0x0000000007480000-0x0000000007AFA000-memory.dmp

        Filesize

        6.5MB

      • memory/3384-15-0x0000000004550000-0x0000000004586000-memory.dmp

        Filesize

        216KB

      • memory/3384-59-0x0000000006EA0000-0x0000000006EAA000-memory.dmp

        Filesize

        40KB

      • memory/3384-60-0x00000000070B0000-0x0000000007146000-memory.dmp

        Filesize

        600KB

      • memory/3384-61-0x0000000007030000-0x0000000007041000-memory.dmp

        Filesize

        68KB

      • memory/3384-62-0x0000000007060000-0x000000000706E000-memory.dmp

        Filesize

        56KB

      • memory/3384-64-0x0000000007070000-0x0000000007084000-memory.dmp

        Filesize

        80KB

      • memory/4020-63-0x0000000006D40000-0x0000000006D90000-memory.dmp

        Filesize

        320KB

      • memory/4020-37-0x00000000055F0000-0x0000000005600000-memory.dmp

        Filesize

        64KB

      • memory/4020-24-0x0000000074610000-0x0000000074DC0000-memory.dmp

        Filesize

        7.7MB

      • memory/4020-21-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/4020-70-0x0000000074610000-0x0000000074DC0000-memory.dmp

        Filesize

        7.7MB

      • memory/4020-71-0x00000000055F0000-0x0000000005600000-memory.dmp

        Filesize

        64KB