Analysis

  • max time kernel
    91s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 11:59

General

  • Target

    IMG_0009786R445TGUH.exe

  • Size

    423KB

  • MD5

    f6cec1316813848e64a78fe3d6d29386

  • SHA1

    ee1422deba8ead728f95c22c2b0ccfb984c00c33

  • SHA256

    2b9ac04e330dd1d57544561da42bd8826c516e16b1acb6e70aa07d38f8152cde

  • SHA512

    174e73448b7a1d9002deb0957c33e5939601ba0c79038f33d00e16bf0548ffdbd0165754d52f8b830a517bc499c58e755d6926b902fc02225fbe63e488c208e0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    mkoify147@@@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\IMG_0009786R445TGUH.exe
    "C:\Users\Admin\AppData\Local\Temp\IMG_0009786R445TGUH.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4160
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\hfYZuV" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAC23.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4112
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:344
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:204
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:1596

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\tmpAC23.tmp

        Filesize

        1KB

        MD5

        ca410b517abf3ea276f0c8bad4bd6599

        SHA1

        7eea87a91676aa0dd81b4a63e22a38e962ab706a

        SHA256

        90d6c36e51e745948addd97a9fef2b8dff98e36e2e36be71281ab12ef6b35ea0

        SHA512

        2df70028d6f5aabbfca7565c9c0a93e16a61538cc51d9383d261e9c3f55317eb37282d27bd51caa89a41146998917b0fc8a0cceb8da6f2774c4721cf92557508

      • memory/204-139-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/204-138-0x0000000000000000-mapping.dmp

      • memory/204-140-0x0000000006020000-0x0000000006086000-memory.dmp

        Filesize

        408KB

      • memory/204-142-0x0000000006650000-0x00000000066A0000-memory.dmp

        Filesize

        320KB

      • memory/344-137-0x0000000000000000-mapping.dmp

      • memory/1596-141-0x0000000000000000-mapping.dmp

      • memory/4112-135-0x0000000000000000-mapping.dmp

      • memory/4160-132-0x0000000004E80000-0x0000000004F12000-memory.dmp

        Filesize

        584KB

      • memory/4160-133-0x0000000005030000-0x000000000503A000-memory.dmp

        Filesize

        40KB

      • memory/4160-134-0x0000000008960000-0x00000000089FC000-memory.dmp

        Filesize

        624KB

      • memory/4160-131-0x0000000005390000-0x0000000005934000-memory.dmp

        Filesize

        5.6MB

      • memory/4160-130-0x00000000005B0000-0x0000000000620000-memory.dmp

        Filesize

        448KB