Overview

overview

10

Static

static

DHL Shippi...ts.exe

windows7_x64

10

DHL Shippi...ts.exe

windows10_x64

3

Analysis

  • max time kernel
    94s
  • max time network
    76s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    05/08/2020, 11:40

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General

  • Target
    DHL Shipping Receipts.exe
  • Size 448KB
  • Sample200805-e7nvll5cvj
  • SHA256 ad526f12fe479654bd0e631a03dffceea2f9c0e0f01cb16e03caa4a6b4ed209c
  • MD5 SHA1 SHA512
Score
10/10
agentteslaevasionkeyloggerspywarestealertrojan

Malware Config

Extracted

Family

  • agenttesla

Credentials
  • Protocol

    smtp
  • Host

    mail.cosur.pe
  • Port

    587
  • Username

    [email protected]
  • Password

    C0m3rc14l%

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 4 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.

  • 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
  • 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 8 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\DHL Shipping Receipts.exe
    "C:\Users\Admin\AppData\Local\Temp\DHL Shipping Receipts.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\ekunPf" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9E41.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1040
    • C:\Users\Admin\AppData\Local\Temp\DHL Shipping Receipts.exe
      "{path}"
      2⤵
        PID:1708
      • C:\Users\Admin\AppData\Local\Temp\DHL Shipping Receipts.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        PID:1796

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1796-4-0x0000000000400000-0x000000000044C000-memory.dmp
          Download

          memory/1796-6-0x0000000000400000-0x000000000044C000-memory.dmp
          Download

          memory/1796-7-0x0000000000400000-0x000000000044C000-memory.dmp
          Download