Analysis

  • max time kernel
    144s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7v200722
  • submitted
    31-07-2020 11:47

General

  • Target

    swift advice Ref[GLV501756103].exe

  • Size

    499KB

  • MD5

    3c29248e3d6885fdbc7918485def416b

  • SHA1

    d519b85de73a25025bc3fe0b89178a320feb38f8

  • SHA256

    74f0abd5013240cc7c7907544e081c7331c278356e5a0d7a9f5add4105734611

  • SHA512

    2ddf3ad3e75d9cd114e60eb0e7ca681f71d2b4a4e841d9c4446c0488b0b5d5e23dfd6ef285d25768890f1cde1cac0383c4c09b17d657aa113013c1bd79b80cbe

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    account26@lonqsailing.net
  • Password:
    IZmBVEm3

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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\swift advice Ref[GLV501756103].exe
    "C:\Users\Admin\AppData\Local\Temp\swift advice Ref[GLV501756103].exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1420
    • C:\Users\Admin\AppData\Local\Temp\swift advice Ref[GLV501756103].exe
      "{path}"
      2⤵
        PID:1832
      • C:\Users\Admin\AppData\Local\Temp\swift advice Ref[GLV501756103].exe
        "{path}"
        2⤵
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        PID:1856

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Credentials in Files

    3
    T1081

    Collection

    Data from Local System

    3
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1420-1-0x0000000000000000-0x0000000000000000-disk.dmp
    • memory/1856-2-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/1856-3-0x0000000000446B1E-mapping.dmp
    • memory/1856-4-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/1856-5-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB