Overview

overview

10

Static

static

k5jT8OXjl89E0ZP.exe

windows7_x64

10

k5jT8OXjl89E0ZP.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    112s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:30

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General

  • Target

    k5jT8OXjl89E0ZP.exe

  • Size

    443KB

  • MD5

    1154a1e546242fce05b19e57f4d51b70

  • SHA1

    66474ee898e14250c3ffeab9335420b3bcf649b8

  • SHA256

    77a9652b29e432e9a9bdf2698fc841b88153739300f329d39fc8ada898390539

  • SHA512

    356d8f4bdc60e1d571726d59c0435219e4325f1673cf30f36a4d12a540595a5b88f8460c592f0cd1f8c9d1d86335101679e3db4ee1f4338b734c59c03c58792a

Score
10/10
agentteslacollectionevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:     smtp
  • Host:
    smtp.forapro-ru.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    FLYY)RH0

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs
    evasion
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

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

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

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

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

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
    collection
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\k5jT8OXjl89E0ZP.exe
    "C:\Users\Admin\AppData\Local\Temp\k5jT8OXjl89E0ZP.exe"
    1⤵
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3172
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OJBVaR" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE6BB.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4976
    • C:\Users\Admin\AppData\Local\Temp\k5jT8OXjl89E0ZP.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:4344
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:5028

    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

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    Lateral Movement

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\tmpE6BB.tmp
      Filesize

      1KB

      MD5

      15d1a5207ff50b169f73284d56618403

      SHA1

      464dc330324f87500e8d5c040edba0672b1db22d

      SHA256

      b9eb7f262f0d8db2131203c1dc90abe519fb4c2af463a9ffc8d9a7864abb19a2

      SHA512

      77c2ce768309c7eb0c479635e1af256df5b736e6212e329831dc5890eb29940c0d721830b39830dfb4d14facce2ece653388eea221a9dd0370bf531c06776496

      Download Submit
    • memory/3172-130-0x0000000000CE0000-0x0000000000D56000-memory.dmp
      Filesize

      472KB

      Download
    • memory/3172-131-0x0000000008080000-0x0000000008624000-memory.dmp
      Filesize

      5.6MB

      Download
    • memory/3172-132-0x0000000007BD0000-0x0000000007C62000-memory.dmp
      Filesize

      584KB

      Download
    • memory/3172-133-0x0000000007C80000-0x0000000007C8A000-memory.dmp
      Filesize

      40KB

      Download
    • memory/3172-134-0x000000000B6C0000-0x000000000B75C000-memory.dmp
      Filesize

      624KB

      Download
    • memory/3172-135-0x000000000B860000-0x000000000B8C6000-memory.dmp
      Filesize

      408KB

      Download
    • memory/4344-138-0x0000000000000000-mapping.dmp
      Download
    • memory/4344-139-0x0000000000400000-0x0000000000452000-memory.dmp
      Filesize

      328KB

      Download
    • memory/4344-141-0x0000000006840000-0x0000000006890000-memory.dmp
      Filesize

      320KB

      Download
    • memory/4976-136-0x0000000000000000-mapping.dmp
      Download
    • memory/5028-140-0x0000000000000000-mapping.dmp
      Download