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Analysis

  • max time kernel
    144s
  • max time network
    146s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    07/07/2020, 08:39

General

  • Target

    Q0001DA.exe

  • Size

    791KB

  • MD5

    0cbe236bd971b3c66eae0105b9d1b963

  • SHA1

    16a54302d3404dd169d90bb0b82922d6aabb35cd

  • SHA256

    f6e1d512e3da60314732745faefb71123ec48154575d3b621546fc55e78e7a3c

  • SHA512

    b4a72096a160530fbe629e0a800ebcad7ac7c479ce9774772e7d5847292e63d270f8cd26f8027dadf4ea593e96430a0380b181ea286939fd74d63c22d735a448

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 3 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\Q0001DA.exe
    "C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1740
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:3776
    • C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe
      "C:\Users\Admin\AppData\Local\Temp\Q0001DA.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2228

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/2228-1-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/2228-3-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/2228-4-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/2228-5-0x0000000000990000-0x00000000009DC000-memory.dmp

    Filesize

    304KB

  • memory/2228-6-0x0000000000A42000-0x0000000000A43000-memory.dmp

    Filesize

    4KB