Overview

overview

10

Static

static

10

lbW2raPRAYI9cLe.exe

windows7_x64

10

lbW2raPRAYI9cLe.exe

windows10_x64

10

Analysis

  • max time kernel
    124s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    09-11-2020 19:37

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General

  • Target

    lbW2raPRAYI9cLe.exe

  • Size

    530KB

  • MD5

    1a905d2e69d78f7c9193ac7fd18fa2ec

  • SHA1

    cd69ae40f7967f7c025974db74f6c709c6eacdc7

  • SHA256

    a4a5d42b2ea9f98c93d25d7762da6f28bd90c6f4b1ec75311b6bca3d4d4bdeef

  • SHA512

    0bbc0972bc5a7600e19109d50e67d6f2d1d09f7d636f6d7636508dc68fb19dc2062addb0570714a911f1142918c2c7355ac97632e3416396db0059b0c5e61243

Score
10/10
agentteslacoreentitykeyloggerpersistencerezer0spywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.lettu.us
  • Port:
    587
  • Username:
    hr@lettu.us
  • Password:
    ilovejesus2020@

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
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\lbW2raPRAYI9cLe.exe
    "C:\Users\Admin\AppData\Local\Temp\lbW2raPRAYI9cLe.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Users\Admin\AppData\Local\Temp\lbW2raPRAYI9cLe.exe
      "{path}"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:664
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1956

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/664-7-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/664-8-0x000000000044A9EE-mapping.dmp
      Download
    • memory/664-10-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/664-9-0x0000000000400000-0x0000000000450000-memory.dmp
      Filesize

      320KB

      Download
    • memory/664-11-0x0000000074900000-0x0000000074FEE000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/1040-0-0x0000000074900000-0x0000000074FEE000-memory.dmp
      Filesize

      6.9MB

      Download
    • memory/1040-1-0x0000000000E50000-0x0000000000E51000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1040-3-0x00000000003A0000-0x00000000003F9000-memory.dmp
      Filesize

      356KB

      Download
    • memory/1040-5-0x0000000000720000-0x0000000000723000-memory.dmp
      Filesize

      12KB

      Download
    • memory/1040-6-0x00000000074D0000-0x0000000007521000-memory.dmp
      Filesize

      324KB

      Download
    • memory/1860-4-0x000007FEF7880000-0x000007FEF7AFA000-memory.dmp
      Filesize

      2.5MB

      Download
    • memory/1956-14-0x0000000000000000-mapping.dmp
      Download