Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-03-2024 01:46

General

  • Target

    c22581a6e275d276141977cf7eb50853.exe

  • Size

    488KB

  • MD5

    c22581a6e275d276141977cf7eb50853

  • SHA1

    bdf5f8adbeefd1776a1225f2fff84dcbff19faf1

  • SHA256

    e1eb6222a8e97a11a12b0306cc2084152d2c53e4969178c8dcc3d94012fcdad2

  • SHA512

    ffeecb806e2d61bbfc9cd2647a591cb63aba0269a17cda73fbc94104fe189a9ace5e4233dcbae9d1e4fe49ffd3649b6d5323c8de93e099e993af06ec3a0d8bc1

  • SSDEEP

    12288:Pi7n6QjBtbKjD/AkVmSc0NhOLS26ni/WlQ0EC:q7nhvbKvfmkALKi/Wq0E

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.rajapindah.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #r4j#citeureup#13

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • ReZer0 packer 1 IoCs

    Detects ReZer0, a packer with multiple versions used in various campaigns.

  • Disables Task Manager via registry modification
  • Drops file in Drivers directory 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c22581a6e275d276141977cf7eb50853.exe
    "C:\Users\Admin\AppData\Local\Temp\c22581a6e275d276141977cf7eb50853.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1792
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "{path}"
      2⤵
        PID:4572
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        "{path}"
        2⤵
        • Drops file in Drivers directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:2276
        • C:\Windows\SysWOW64\REG.exe
          REG add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
          3⤵
          • Modifies registry key
          PID:2820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2276 -s 1496
          3⤵
          • Program crash
          PID:5056
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2276 -ip 2276
      1⤵
        PID:5052

      Network

      MITRE ATT&CK Matrix ATT&CK v13

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1792-8-0x0000000006580000-0x000000000661C000-memory.dmp
        Filesize

        624KB

      • memory/1792-13-0x00000000750A0000-0x0000000075850000-memory.dmp
        Filesize

        7.7MB

      • memory/1792-0-0x00000000750A0000-0x0000000075850000-memory.dmp
        Filesize

        7.7MB

      • memory/1792-3-0x0000000005030000-0x00000000050C2000-memory.dmp
        Filesize

        584KB

      • memory/1792-4-0x0000000005330000-0x0000000005340000-memory.dmp
        Filesize

        64KB

      • memory/1792-5-0x0000000002C60000-0x0000000002C6A000-memory.dmp
        Filesize

        40KB

      • memory/1792-6-0x0000000005120000-0x0000000005128000-memory.dmp
        Filesize

        32KB

      • memory/1792-7-0x0000000006480000-0x00000000064D8000-memory.dmp
        Filesize

        352KB

      • memory/1792-2-0x0000000005710000-0x0000000005CB4000-memory.dmp
        Filesize

        5.6MB

      • memory/1792-1-0x0000000000680000-0x0000000000700000-memory.dmp
        Filesize

        512KB

      • memory/2276-20-0x00000000750A0000-0x0000000075850000-memory.dmp
        Filesize

        7.7MB

      • memory/2276-11-0x00000000750A0000-0x0000000075850000-memory.dmp
        Filesize

        7.7MB

      • memory/2276-12-0x00000000056C0000-0x00000000056D0000-memory.dmp
        Filesize

        64KB

      • memory/2276-14-0x0000000005370000-0x0000000005388000-memory.dmp
        Filesize

        96KB

      • memory/2276-15-0x0000000005B80000-0x0000000005BE6000-memory.dmp
        Filesize

        408KB

      • memory/2276-17-0x00000000750A0000-0x0000000075850000-memory.dmp
        Filesize

        7.7MB

      • memory/2276-18-0x00000000056C0000-0x00000000056D0000-memory.dmp
        Filesize

        64KB

      • memory/2276-19-0x00000000067B0000-0x0000000006800000-memory.dmp
        Filesize

        320KB

      • memory/2276-9-0x0000000000400000-0x0000000000450000-memory.dmp
        Filesize

        320KB