Analysis

  • max time kernel
    120s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231201-en
  • resource tags

    arch:x64arch:x86image:win7-20231201-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 02:40

General

  • Target

    0937db05f9825fd32a3418c2a2036896da92fff451d05cd0ec1f0e713c06dd2d.rtf

  • Size

    189KB

  • MD5

    3a1465089ba79f5463130adfcb9ef647

  • SHA1

    f7c8db38416277ad982b6aa7c134761abf2d3066

  • SHA256

    0937db05f9825fd32a3418c2a2036896da92fff451d05cd0ec1f0e713c06dd2d

  • SHA512

    c4d90650fa09a8c290455b6c911b5455554e18b4185f8405c46a34a3475567992f1dd52f7b34d4dbf789381b87344a3a766e74c251c6bfe08ac2fd6ecb5a93c1

  • SSDEEP

    768:3wAbZSibMX9gRWjtwAbZSibMX9gRWjuuvK9laxlywPKKckNZPsE8GYmAKp:3wAlRkwAlRoowLKKDZPZ8GYmTp

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\0937db05f9825fd32a3418c2a2036896da92fff451d05cd0ec1f0e713c06dd2d.rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1592
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:2660
      • C:\Users\Admin\AppData\Roaming\mmtrade72059.exe
        "C:\Users\Admin\AppData\Roaming\mmtrade72059.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2680
        • C:\Users\Admin\AppData\Roaming\mmtrade72059.exe
          "C:\Users\Admin\AppData\Roaming\mmtrade72059.exe"
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:2788

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      30b5fb23ec493af97a1b90889660ecad

      SHA1

      05339f5c8848edd8708e9bfe98e33612ecee789d

      SHA256

      eba0cfc643abb18e978f82d76669c580cfaf4d7d9c3d6943a476f77c4ed2398a

      SHA512

      b15469aca8d1390e65305354e7790873ebee8f99963bf665666afda0ff537854418c393ad0f71bada94728344dded93b27c439f277330710d4d2093155094146

    • C:\Users\Admin\AppData\Roaming\mmtrade72059.exe

      Filesize

      649KB

      MD5

      ad5bb07ce43df4278b18681fc5aa47b4

      SHA1

      a0ef56d019bb8bda3e3063eea3b2a530cc5c379a

      SHA256

      e12160051d05c920fe17a344ede8466f785b82603ebeb4071fbad0ce2b8f3296

      SHA512

      7b574e9b35a2253cf83428e605ac35f550fb3c8302ce68d3c1abc36be96535591d6c585a4f84f0e232a8fa4e2eed0e70233a3e5b69f6266da8d11cccd39be5b6

    • C:\Users\Admin\AppData\Roaming\mmtrade72059.exe

      Filesize

      649KB

      MD5

      ad5bb07ce43df4278b18681fc5aa47b4

      SHA1

      a0ef56d019bb8bda3e3063eea3b2a530cc5c379a

      SHA256

      e12160051d05c920fe17a344ede8466f785b82603ebeb4071fbad0ce2b8f3296

      SHA512

      7b574e9b35a2253cf83428e605ac35f550fb3c8302ce68d3c1abc36be96535591d6c585a4f84f0e232a8fa4e2eed0e70233a3e5b69f6266da8d11cccd39be5b6

    • C:\Users\Admin\AppData\Roaming\mmtrade72059.exe

      Filesize

      649KB

      MD5

      ad5bb07ce43df4278b18681fc5aa47b4

      SHA1

      a0ef56d019bb8bda3e3063eea3b2a530cc5c379a

      SHA256

      e12160051d05c920fe17a344ede8466f785b82603ebeb4071fbad0ce2b8f3296

      SHA512

      7b574e9b35a2253cf83428e605ac35f550fb3c8302ce68d3c1abc36be96535591d6c585a4f84f0e232a8fa4e2eed0e70233a3e5b69f6266da8d11cccd39be5b6

    • C:\Users\Admin\AppData\Roaming\mmtrade72059.exe

      Filesize

      649KB

      MD5

      ad5bb07ce43df4278b18681fc5aa47b4

      SHA1

      a0ef56d019bb8bda3e3063eea3b2a530cc5c379a

      SHA256

      e12160051d05c920fe17a344ede8466f785b82603ebeb4071fbad0ce2b8f3296

      SHA512

      7b574e9b35a2253cf83428e605ac35f550fb3c8302ce68d3c1abc36be96535591d6c585a4f84f0e232a8fa4e2eed0e70233a3e5b69f6266da8d11cccd39be5b6

    • \Users\Admin\AppData\Roaming\mmtrade72059.exe

      Filesize

      649KB

      MD5

      ad5bb07ce43df4278b18681fc5aa47b4

      SHA1

      a0ef56d019bb8bda3e3063eea3b2a530cc5c379a

      SHA256

      e12160051d05c920fe17a344ede8466f785b82603ebeb4071fbad0ce2b8f3296

      SHA512

      7b574e9b35a2253cf83428e605ac35f550fb3c8302ce68d3c1abc36be96535591d6c585a4f84f0e232a8fa4e2eed0e70233a3e5b69f6266da8d11cccd39be5b6

    • \Users\Admin\AppData\Roaming\mmtrade72059.exe

      Filesize

      649KB

      MD5

      ad5bb07ce43df4278b18681fc5aa47b4

      SHA1

      a0ef56d019bb8bda3e3063eea3b2a530cc5c379a

      SHA256

      e12160051d05c920fe17a344ede8466f785b82603ebeb4071fbad0ce2b8f3296

      SHA512

      7b574e9b35a2253cf83428e605ac35f550fb3c8302ce68d3c1abc36be96535591d6c585a4f84f0e232a8fa4e2eed0e70233a3e5b69f6266da8d11cccd39be5b6

    • memory/2076-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2076-2-0x00000000715FD000-0x0000000071608000-memory.dmp

      Filesize

      44KB

    • memory/2076-69-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2076-42-0x00000000715FD000-0x0000000071608000-memory.dmp

      Filesize

      44KB

    • memory/2076-0-0x000000002F3D1000-0x000000002F3D2000-memory.dmp

      Filesize

      4KB

    • memory/2680-43-0x000000006B770000-0x000000006BE5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2680-27-0x0000000000880000-0x0000000000888000-memory.dmp

      Filesize

      32KB

    • memory/2680-29-0x00000000052E0000-0x000000000535E000-memory.dmp

      Filesize

      504KB

    • memory/2680-18-0x00000000011C0000-0x0000000001268000-memory.dmp

      Filesize

      672KB

    • memory/2680-19-0x000000006B770000-0x000000006BE5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2680-28-0x0000000000890000-0x000000000089A000-memory.dmp

      Filesize

      40KB

    • memory/2680-24-0x0000000004DA0000-0x0000000004DE0000-memory.dmp

      Filesize

      256KB

    • memory/2680-25-0x00000000005D0000-0x00000000005EA000-memory.dmp

      Filesize

      104KB

    • memory/2788-33-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2788-39-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2788-41-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2788-36-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2788-32-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2788-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2788-45-0x0000000000480000-0x00000000004C0000-memory.dmp

      Filesize

      256KB

    • memory/2788-44-0x000000006B770000-0x000000006BE5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2788-47-0x000000006B770000-0x000000006BE5E000-memory.dmp

      Filesize

      6.9MB

    • memory/2788-48-0x0000000000480000-0x00000000004C0000-memory.dmp

      Filesize

      256KB

    • memory/2788-31-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB

    • memory/2788-30-0x0000000000400000-0x0000000000444000-memory.dmp

      Filesize

      272KB