Analysis

  • max time kernel
    119s
  • max time network
    142s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    09-07-2020 14:56

General

  • Target

    LDR Quote - 014.exe

  • Size

    804KB

  • MD5

    eb909348dd9474bd37ff32c9e314e617

  • SHA1

    6c1bad83c65120f65477f5c7c2f92e313d9a707b

  • SHA256

    f3ef6817953ca158c6659bc08c6bbcc27f834a7143426910383e79030109fd2c

  • SHA512

    9de7fb1c3be177a9d7a471578fa969fe11562b639b835c672620b6cd061b7f2a2096f8b83bde5f1c8ca01d467ac1f795f3d82cccdb27954ad99bcc1fcc509de5

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Mix2lower12?..

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops startup file 1 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\LDR Quote - 014.exe
    "C:\Users\Admin\AppData\Local\Temp\LDR Quote - 014.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1520
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:1836
    • C:\Users\Admin\AppData\Local\Temp\LDR Quote - 014.exe
      "C:\Users\Admin\AppData\Local\Temp\LDR Quote - 014.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1840

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1836-0-0x0000000000000000-mapping.dmp

  • memory/1840-1-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/1840-2-0x00000000004A3260-mapping.dmp

  • memory/1840-3-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/1840-4-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/1840-5-0x00000000009E0000-0x0000000000A2C000-memory.dmp

    Filesize

    304KB

  • memory/1840-6-0x00000000023E2000-0x00000000023E3000-memory.dmp

    Filesize

    4KB