Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-06-2024 09:53

General

  • Target

    Requirement Specification.exe

  • Size

    3.4MB

  • MD5

    86b91372dc46212aa7f5310339a6f7f3

  • SHA1

    ddfd08661f0f3a515c3802cf3042b002d1748d53

  • SHA256

    564d2275edd8f622be6717d156c627a346f330549ca2f266985e49a4e5e17204

  • SHA512

    6f2dfbb44854f6021752691d3c4328cdd6b40695fc923b0c28f8432d8c9d4fa217e75dce067ed86a58f8d8e424593035fb3084bee5a1b6b29fa5b872e1211210

  • SSDEEP

    49152:h8yJAk206NICMq5pzKRgqVzKfxgF2/yjmQkk2:2Bsb/kk2

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Requirement Specification.exe
    "C:\Users\Admin\AppData\Local\Temp\Requirement Specification.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3264
    • C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\system32\WindowsPowerShell\v1.0\powershell.exe Add-MpPreference -ExclusionPath $env:UserProfile
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3116
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4616

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mbezhoer.hlc.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/3116-17-0x00007FFB46970000-0x00007FFB47431000-memory.dmp

    Filesize

    10.8MB

  • memory/3116-6-0x000001FC36EB0000-0x000001FC36ED2000-memory.dmp

    Filesize

    136KB

  • memory/3116-7-0x00007FFB46970000-0x00007FFB47431000-memory.dmp

    Filesize

    10.8MB

  • memory/3116-12-0x00007FFB46970000-0x00007FFB47431000-memory.dmp

    Filesize

    10.8MB

  • memory/3116-0-0x00007FFB46973000-0x00007FFB46975000-memory.dmp

    Filesize

    8KB

  • memory/4616-19-0x0000000005930000-0x0000000005ED4000-memory.dmp

    Filesize

    5.6MB

  • memory/4616-18-0x00000000753CE000-0x00000000753CF000-memory.dmp

    Filesize

    4KB

  • memory/4616-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4616-20-0x00000000055E0000-0x0000000005646000-memory.dmp

    Filesize

    408KB

  • memory/4616-21-0x00000000753C0000-0x0000000075B70000-memory.dmp

    Filesize

    7.7MB

  • memory/4616-22-0x00000000069E0000-0x0000000006A72000-memory.dmp

    Filesize

    584KB

  • memory/4616-23-0x0000000008A30000-0x0000000008A80000-memory.dmp

    Filesize

    320KB

  • memory/4616-24-0x0000000008210000-0x000000000821A000-memory.dmp

    Filesize

    40KB

  • memory/4616-25-0x00000000753CE000-0x00000000753CF000-memory.dmp

    Filesize

    4KB

  • memory/4616-26-0x00000000753C0000-0x0000000075B70000-memory.dmp

    Filesize

    7.7MB