Analysis

  • max time kernel
    132s
  • max time network
    28s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    13-07-2020 06:29

General

  • Target

    NewyorkUSA-hsbc - confirmation.exe

  • Size

    484KB

  • MD5

    24e4040b9a02c8cc8a96ac685cc15bd2

  • SHA1

    1600fc7708ea4f7ca0f0d310362a8862700d1fdd

  • SHA256

    029905c8789b5194e3f20a0a818bbd8922d113ce41ac880fe44f56d39b6a6356

  • SHA512

    9e923595ffc60174755ce69216f57048ffadc3bd09b6dd628b916f202104154ce02d39b4710ae07a43267036b09f07741556f5a8d1b081c6c3e96b4111ae6d24

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.lctechs-engineering.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    0y~q4Y?~Yltr

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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
  • 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.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\NewyorkUSA-hsbc - confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\NewyorkUSA-hsbc - confirmation.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1428
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HIDDgimHLoyFeF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp62C7.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1760
    • C:\Users\Admin\AppData\Local\Temp\NewyorkUSA-hsbc - confirmation.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:320

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/320-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/320-6-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/320-7-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB