Analysis

  • max time kernel
    136s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    13/07/2020, 11:41

General

  • Target

    CONFIRMED ORDER#50184CC384Z81428-pdf.exe

  • Size

    715KB

  • MD5

    e1aa20d0dbe7c7c71bc2c1acc8e006a4

  • SHA1

    f2ed49e1c2de1a1539528432dbade5edf5f9c4c6

  • SHA256

    bb1eb4be1508cbc21eb2408f05af4094d5d076187e40aca4ce719cec6c3e1b88

  • SHA512

    31991d813b9da69d6e21fd7d71508244db7d22cc0dd355ae202203c7542048a95c6d32857ff4fcd7b3ba144fc14df654f3c7b0bff8b12da9ad8e4cec9a96fad7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.samarasae.gr/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    25pV8R}XC9=j

  • Protocol:
    ftp
  • Host:
    ftp://ftp.samarasae.gr/
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    25pV8R}XC9=j

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 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\CONFIRMED ORDER#50184CC384Z81428-pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\CONFIRMED ORDER#50184CC384Z81428-pdf.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
      "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1872

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1872-7-0x0000000000090000-0x00000000000DC000-memory.dmp

          Filesize

          304KB

        • memory/1872-8-0x0000000000090000-0x00000000000DC000-memory.dmp

          Filesize

          304KB