Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    21-01-2021 12:05

General

  • Target

    Payment slip.exe

  • Size

    652KB

  • MD5

    18ba144683247098a9ff944273e3d293

  • SHA1

    9eaf6860201938fc7027b22b11a8667d2b45c979

  • SHA256

    87f32b29a629a3bf5d0ec129f3daf65ce665c816353b41492ef0ca56fd165ce1

  • SHA512

    2a875f79473b578977385740f0a7d6369ffda6bdbe30074045b9ece321d5f27157a8b40dfafcbd79a1f4dac51b3ac8f75b536a6ad1688688d15c04794e99fa4e

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    paola.micheli@copangroup.xyz
  • Password:
    gibson.1990

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment slip.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment slip.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4764
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:4264
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Drops file in Drivers directory
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4288

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4288-15-0x000000000043761E-mapping.dmp
    • memory/4288-30-0x00000000053C1000-0x00000000053C2000-memory.dmp
      Filesize

      4KB

    • memory/4288-27-0x00000000061C0000-0x00000000061C1000-memory.dmp
      Filesize

      4KB

    • memory/4288-26-0x0000000006030000-0x0000000006031000-memory.dmp
      Filesize

      4KB

    • memory/4288-22-0x00000000053C0000-0x00000000053C1000-memory.dmp
      Filesize

      4KB

    • memory/4288-16-0x0000000073150000-0x000000007383E000-memory.dmp
      Filesize

      6.9MB

    • memory/4288-14-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/4764-8-0x0000000002B90000-0x0000000002B91000-memory.dmp
      Filesize

      4KB

    • memory/4764-17-0x0000000002B93000-0x0000000002B95000-memory.dmp
      Filesize

      8KB

    • memory/4764-12-0x0000000008CD0000-0x0000000008CD1000-memory.dmp
      Filesize

      4KB

    • memory/4764-13-0x0000000008780000-0x000000000878F000-memory.dmp
      Filesize

      60KB

    • memory/4764-10-0x0000000008870000-0x0000000008871000-memory.dmp
      Filesize

      4KB

    • memory/4764-9-0x0000000007180000-0x00000000071C9000-memory.dmp
      Filesize

      292KB

    • memory/4764-2-0x0000000073150000-0x000000007383E000-memory.dmp
      Filesize

      6.9MB

    • memory/4764-11-0x0000000008980000-0x0000000008981000-memory.dmp
      Filesize

      4KB

    • memory/4764-7-0x0000000002B70000-0x0000000002B71000-memory.dmp
      Filesize

      4KB

    • memory/4764-23-0x0000000007480000-0x0000000007481000-memory.dmp
      Filesize

      4KB

    • memory/4764-24-0x0000000007510000-0x0000000007511000-memory.dmp
      Filesize

      4KB

    • memory/4764-25-0x00000000074D0000-0x00000000074D1000-memory.dmp
      Filesize

      4KB

    • memory/4764-6-0x0000000004F80000-0x0000000004F81000-memory.dmp
      Filesize

      4KB

    • memory/4764-5-0x0000000005480000-0x0000000005481000-memory.dmp
      Filesize

      4KB

    • memory/4764-3-0x00000000005E0000-0x00000000005E1000-memory.dmp
      Filesize

      4KB