Analysis

  • max time kernel
    145s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-12-2023 03:14

General

  • Target

    5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe

  • Size

    343KB

  • MD5

    175320e35a91aa8415e3b08ea6e5bdc6

  • SHA1

    1639248526ceef472194ba43252741cfb1e4698f

  • SHA256

    5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104

  • SHA512

    fce970be9c4ec7779e153ff9a1803d8b673e5ba6440999c74e7e4a562e37ef69e40a4a751c300c0dcfaac4ea11d29edb6ef2d4d527d17c005c152fdd3bb7a03a

  • SSDEEP

    6144:M+NN8s91BMtFaG81g5qJRn4xxL2l6IKH+uFP4VYQXXepDzMYgA5YuvsuFie:fL1BoFaG81S0Rn4xtB9Q2QXMMcZvwe

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    mydevelopmentstory.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ENugu@042EN

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://mydevelopmentstory.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ENugu@042EN

Signatures

  • AgentTesla

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

  • 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.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe
    "C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe
      "C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe"
      2⤵
        PID:2832
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2832 -s 80
          3⤵
          • Program crash
          PID:836
      • C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe
        "C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1108
      • C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe
        "C:\Users\Admin\AppData\Local\Temp\5fe3691051b15363c0cb99225680eadf139d815a078bb8e35d6acdfa59992104.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:392
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 2832 -ip 2832
      1⤵
        PID:4824

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/392-15-0x0000000005910000-0x0000000005920000-memory.dmp

        Filesize

        64KB

      • memory/392-20-0x0000000005910000-0x0000000005920000-memory.dmp

        Filesize

        64KB

      • memory/392-19-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/392-18-0x0000000007050000-0x000000000705A000-memory.dmp

        Filesize

        40KB

      • memory/392-17-0x0000000006F70000-0x000000000700C000-memory.dmp

        Filesize

        624KB

      • memory/392-16-0x0000000006E80000-0x0000000006ED0000-memory.dmp

        Filesize

        320KB

      • memory/392-13-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/624-4-0x00000000053C0000-0x00000000053D0000-memory.dmp

        Filesize

        64KB

      • memory/624-14-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/624-5-0x00000000053B0000-0x00000000053B1000-memory.dmp

        Filesize

        4KB

      • memory/624-0-0x0000000000B30000-0x0000000000B8C000-memory.dmp

        Filesize

        368KB

      • memory/624-3-0x0000000005420000-0x00000000054B2000-memory.dmp

        Filesize

        584KB

      • memory/624-2-0x00000000058F0000-0x0000000005E94000-memory.dmp

        Filesize

        5.6MB

      • memory/624-1-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/1108-9-0x0000000005410000-0x0000000005420000-memory.dmp

        Filesize

        64KB

      • memory/1108-10-0x00000000055F0000-0x0000000005656000-memory.dmp

        Filesize

        408KB

      • memory/1108-8-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB

      • memory/1108-7-0x0000000000400000-0x0000000000444000-memory.dmp

        Filesize

        272KB

      • memory/1108-12-0x0000000075070000-0x0000000075820000-memory.dmp

        Filesize

        7.7MB