Analysis

  • max time kernel
    70s
  • max time network
    73s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    08/07/2020, 11:34

General

  • Target

    SCAN_PO CTL209-026.exe

  • Size

    839KB

  • MD5

    0957144bc6ea160515c1bfd6c2faa6d5

  • SHA1

    e06dfa469646bc8cc28207abe7c8cb8116ab77e6

  • SHA256

    9a461345aa76acd802aebd2426775b952f411c0c1def2ae141f23fe4a16b5e7c

  • SHA512

    15d4bcfe795bc5eadd2909427acfce5e713b2a0d4402aa0d88d49f8880298a2c12407ce8c5a1f23b84c6405ca14f2dbc30ae7c464d983563c1c5e9959e5a6010

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    @infinitY1234

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SCAN_PO CTL209-026.exe
    "C:\Users\Admin\AppData\Local\Temp\SCAN_PO CTL209-026.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1464
    • C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
      "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:112

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/112-4-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/112-7-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/112-8-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB