Analysis

  • max time kernel
    94s
  • max time network
    113s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-01-2021 10:13

General

  • Target

    SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe

  • Size

    66KB

  • MD5

    d6e27ca5fda89dad7196cf7221682383

  • SHA1

    98f18f3e3dce449b095c9d12bd7086875d75a6a3

  • SHA256

    8d299c63fc884940002e9858925dc405621d1d57637d956944d224bb0e97371f

  • SHA512

    899c0d9d32bfab89f6385194d6932adf68d41d50a51fef0ad45625aa4890fd16f7039a095d83c2f3dc94abec92be863f01150c4ee8d1af398872461c14c8b5bc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    frostdell.uk
  • Port:
    587
  • Username:
    pinterlog@frostdell.uk
  • Password:
    7213575aceACE@#$

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
  • Suspicious use of SetThreadContext 5 IoCs
  • Program crash 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 34 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4160
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe"
      2⤵
        PID:4224
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4224 -s 24
          3⤵
          • Program crash
          PID:4076
      • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe
        "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe"
        2⤵
          PID:3224
        • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe
          "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe"
          2⤵
            PID:3904
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 96
              3⤵
              • Program crash
              PID:4384
          • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe
            "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.GenericRXNJ-EED6E27CA5FDA8.16229.exe"
            2⤵
              PID:4368

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Credential Access

          Credentials in Files

          3
          T1081

          Collection

          Data from Local System

          3
          T1005

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/3224-19-0x0000000073530000-0x0000000073C1E000-memory.dmp
            Filesize

            6.9MB

          • memory/3224-17-0x000000000043764E-mapping.dmp
          • memory/3904-22-0x000000000043764E-mapping.dmp
          • memory/4076-31-0x0000000004200000-0x0000000004201000-memory.dmp
            Filesize

            4KB

          • memory/4160-14-0x0000000073530000-0x0000000073C1E000-memory.dmp
            Filesize

            6.9MB

          • memory/4160-35-0x0000000005AE0000-0x0000000005AE1000-memory.dmp
            Filesize

            4KB

          • memory/4160-34-0x0000000005410000-0x0000000005411000-memory.dmp
            Filesize

            4KB

          • memory/4160-33-0x0000000002950000-0x0000000002951000-memory.dmp
            Filesize

            4KB

          • memory/4160-11-0x0000000000400000-0x000000000043C000-memory.dmp
            Filesize

            240KB

          • memory/4160-12-0x000000000043764E-mapping.dmp
          • memory/4224-15-0x000000000043764E-mapping.dmp
          • memory/4368-28-0x000000000043764E-mapping.dmp
          • memory/4384-32-0x0000000004560000-0x0000000004561000-memory.dmp
            Filesize

            4KB

          • memory/4720-2-0x0000000073530000-0x0000000073C1E000-memory.dmp
            Filesize

            6.9MB

          • memory/4720-10-0x0000000005AD0000-0x0000000005B2C000-memory.dmp
            Filesize

            368KB

          • memory/4720-9-0x0000000004C40000-0x0000000004C41000-memory.dmp
            Filesize

            4KB

          • memory/4720-23-0x0000000004B70000-0x0000000004B71000-memory.dmp
            Filesize

            4KB

          • memory/4720-8-0x0000000004940000-0x0000000004941000-memory.dmp
            Filesize

            4KB

          • memory/4720-7-0x0000000004B90000-0x0000000004B91000-memory.dmp
            Filesize

            4KB

          • memory/4720-6-0x00000000049C0000-0x00000000049C1000-memory.dmp
            Filesize

            4KB

          • memory/4720-5-0x0000000004DE0000-0x0000000004DE1000-memory.dmp
            Filesize

            4KB

          • memory/4720-3-0x0000000000130000-0x0000000000131000-memory.dmp
            Filesize

            4KB