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Analysis

  • max time kernel
    118s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2025, 23:46

General

  • Target

    Pre-Alert BOTNAY BAY V-1E/Pre-Alert BOTNAY BAY V-1E.exe

  • Size

    1.7MB

  • MD5

    4c80becc727130fae34c312295f56517

  • SHA1

    d5aed4fa3fbf2994680c97b95a68eeb2e992fc65

  • SHA256

    f2448e5b108286c840b6d8a283af1f980818d500dacf0f04a8b424cd70b6d442

  • SHA512

    d0be51acb0e1a88523d2152054990d862972fc755ec647763707275828f97eccbcbd502b8ee43ae53a79d7018876f2f9a39ed3d1e9d5518604e57c4971480c86

  • SSDEEP

    24576:CSexfdrBbi0T+IKztFBGDVXsgpriBWmSOe/E3vq6EsSV:X8fTBKz/0BNiBWmNesfq6Es

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://s4.serv00.com
  • Port:
    21
  • Username:
    f2241_evica
  • Password:
    Doll440@@

Signatures

  • AgentTesla

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

  • Agenttesla family
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • 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
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Pre-Alert BOTNAY BAY V-1E\Pre-Alert BOTNAY BAY V-1E.exe
    "C:\Users\Admin\AppData\Local\Temp\Pre-Alert BOTNAY BAY V-1E\Pre-Alert BOTNAY BAY V-1E.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Users\Admin\AppData\Local\Temp\Pre-Alert BOTNAY BAY V-1E\Pre-Alert BOTNAY BAY V-1E.exe
      "C:\Users\Admin\AppData\Local\Temp\Pre-Alert BOTNAY BAY V-1E\Pre-Alert BOTNAY BAY V-1E.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Temp\Pre-Alert BOTNAY BAY V-1E\Pre-Alert BOTNAY BAY V-1E.exe

    Filesize

    1.7MB

    MD5

    4c80becc727130fae34c312295f56517

    SHA1

    d5aed4fa3fbf2994680c97b95a68eeb2e992fc65

    SHA256

    f2448e5b108286c840b6d8a283af1f980818d500dacf0f04a8b424cd70b6d442

    SHA512

    d0be51acb0e1a88523d2152054990d862972fc755ec647763707275828f97eccbcbd502b8ee43ae53a79d7018876f2f9a39ed3d1e9d5518604e57c4971480c86

  • memory/1976-8-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1976-10-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1976-30-0x0000000074C90000-0x000000007537E000-memory.dmp

    Filesize

    6.9MB

  • memory/1976-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1976-25-0x0000000074C90000-0x000000007537E000-memory.dmp

    Filesize

    6.9MB

  • memory/1976-27-0x0000000074C90000-0x000000007537E000-memory.dmp

    Filesize

    6.9MB

  • memory/1976-21-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1976-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1976-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1976-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1976-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2396-4-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

    Filesize

    4KB

  • memory/2396-2-0x00000000021D0000-0x0000000002240000-memory.dmp

    Filesize

    448KB

  • memory/2396-1-0x0000000000AD0000-0x0000000000C92000-memory.dmp

    Filesize

    1.8MB

  • memory/2396-0-0x0000000074C9E000-0x0000000074C9F000-memory.dmp

    Filesize

    4KB

  • memory/2396-6-0x0000000000740000-0x0000000000748000-memory.dmp

    Filesize

    32KB

  • memory/2396-26-0x0000000074C90000-0x000000007537E000-memory.dmp

    Filesize

    6.9MB

  • memory/2396-5-0x0000000074C90000-0x000000007537E000-memory.dmp

    Filesize

    6.9MB

  • memory/2396-3-0x0000000074C90000-0x000000007537E000-memory.dmp

    Filesize

    6.9MB