Overview

overview

10

Static

static

10

S_00049830...20.exe

windows7_x64

10

S_00049830...20.exe

windows10_x64

10

Analysis

  • max time kernel
    54s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:37

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General

  • Target

    S_0004983002218_07_05_2020.exe

  • Size

    538KB

  • MD5

    e0bf3b5b7e427bf37687c7138fad0ed6

  • SHA1

    06982a0b678a1fdba05516919dfe775865739778

  • SHA256

    403ebe632490ce66b85d75f17ae996cfd0a89294e2c2cce1bcef66b5d4278a18

  • SHA512

    a5d891f820cb96dfdf3b2c990b5b244dad30235135d58d48d4ea10c06544e04cfc3c51141526394d23ce344bc9a11e9085d408febd000a2a490b165938a9274d

Score
10/10
agentteslacoreentitykeyloggerrezer0spywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    mail.reacsa.com.mx
  • Port:
    587
  • Username:
    sucursal_puebla@reacsa.com.mx
  • Password:
    (MzImXmp2u)!

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • CoreEntity .NET Packer 1 IoCs

    A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.

    coreentity
  • AgentTesla Payload 4 IoCs
  • rezer0 1 IoCs

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

    rezer0
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

    spyware
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spyware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\S_0004983002218_07_05_2020.exe
    "C:\Users\Admin\AppData\Local\Temp\S_0004983002218_07_05_2020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:288
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YAbRgkjnlXOSYZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5FAD.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1812
    • C:\Users\Admin\AppData\Local\Temp\S_0004983002218_07_05_2020.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:844
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1316

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmp5FAD.tmp
      MD5

      331487fd74be5ce7a3a8faa72b9291e8

      SHA1

      ac007b964477b858a1069660cc40153454613e70

      SHA256

      22e28103c376e1278c8b4ace825b802084c4cc24c06b1ba9136252318291da5a

      SHA512

      2b0df78eb795039864b92018146780fd8580c8afc524e985b04d7f8bcddb3b4b15f0b4e19a670e609791162637e289a5040e790db700731efc5a53475cd3c21f

      Download Submit
    • memory/288-1-0x00000000001D0000-0x00000000001D1000-memory.dmp
      Filesize

      4KB

      Download
    • memory/288-3-0x0000000000950000-0x00000000009AB000-memory.dmp
      Filesize

      364KB

      Download
    • memory/288-5-0x0000000000610000-0x0000000000613000-memory.dmp
      Filesize

      12KB

      Download
    • memory/288-6-0x00000000083B0000-0x0000000008401000-memory.dmp
      Filesize

      324KB

      Download
    • memory/288-0-0x00000000740B0000-0x000000007479E000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/844-13-0x00000000740B0000-0x000000007479E000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/844-9-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/844-10-0x000000000044A67E-mapping.dmp
      Download
    • memory/844-11-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/844-12-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/1316-16-0x0000000000000000-mapping.dmp
      Download
    • memory/1812-7-0x0000000000000000-mapping.dmp
      Download
    • memory/1964-4-0x000007FEF7140000-0x000007FEF73BA000-memory.dmp
      Filesize

      2.5MB

      Download