Analysis

  • max time kernel
    132s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    25-01-2021 14:34

General

  • Target

    WbGKi8E5OE4eCFG.exe

  • Size

    479KB

  • MD5

    7f6536d5e388184f0463a7ef1082794c

  • SHA1

    366cb9bb3df0ccc33321e76bc35b1db10f92f8ca

  • SHA256

    beba13ab986b15355a6130665e717436f42c6eeed927b614217d42f5242a83b1

  • SHA512

    37f53cf4c091596f42756dc1d54cc10a67b439fa58ab596ecb6ff5ef4ab6aa37ca29f0f44cf11fe49f28428e9842c03b4ac4210b3802c18d9bf2b368b83426d2

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.cefortem.cat
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Vft284Rpyn

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WbGKi8E5OE4eCFG.exe
    "C:\Users\Admin\AppData\Local\Temp\WbGKi8E5OE4eCFG.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:740
    • C:\Users\Admin\AppData\Local\Temp\WbGKi8E5OE4eCFG.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1624

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/740-2-0x0000000073FF0000-0x00000000746DE000-memory.dmp

    Filesize

    6.9MB

  • memory/740-3-0x0000000001100000-0x0000000001101000-memory.dmp

    Filesize

    4KB

  • memory/740-5-0x0000000004940000-0x0000000004941000-memory.dmp

    Filesize

    4KB

  • memory/740-6-0x00000000003E0000-0x00000000003EE000-memory.dmp

    Filesize

    56KB

  • memory/740-7-0x0000000004E70000-0x0000000004ECF000-memory.dmp

    Filesize

    380KB

  • memory/1624-8-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1624-9-0x00000000004374DE-mapping.dmp

  • memory/1624-10-0x0000000073FF0000-0x00000000746DE000-memory.dmp

    Filesize

    6.9MB

  • memory/1624-11-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/1624-13-0x0000000004B60000-0x0000000004B61000-memory.dmp

    Filesize

    4KB

  • memory/1624-14-0x0000000004B61000-0x0000000004B62000-memory.dmp

    Filesize

    4KB