Analysis

  • max time kernel
    65s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    07-07-2020 12:52

General

  • Target

    Transaction Recipt0000000000000000000000.exe

  • Size

    426KB

  • MD5

    059c936b80f96502d0fd020672f88e9a

  • SHA1

    f96e487f573ab188b9516dec0b6ed8fe83325ef8

  • SHA256

    b1c01251f188fd002ea3dccd1b74db29da48f6c40511ec96a6b27de3dfc932a8

  • SHA512

    3da464dc4fbec7981073e61864e1633e3b6a7bb04a599ac5a612431a07ea805baa7748cf2b015a9a1af5a9865110430ba759eb0fdcc238536ba931398d3bae7d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.mail.ru
  • Port:
    587
  • Username:
    rusev.alex@bk.ru
  • Password:
    ronaldo6969

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.

  • 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 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Transaction Recipt0000000000000000000000.exe
    "C:\Users\Admin\AppData\Local\Temp\Transaction Recipt0000000000000000000000.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Users\Admin\AppData\Local\Temp\Transaction Recipt0000000000000000000000.exe
      "C:\Users\Admin\AppData\Local\Temp\Transaction Recipt0000000000000000000000.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2236

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/2236-0-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/2236-1-0x00000000004A2690-mapping.dmp
  • memory/2236-2-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/2236-3-0x0000000000400000-0x00000000004A4000-memory.dmp
    Filesize

    656KB

  • memory/2236-4-0x0000000002190000-0x00000000021DC000-memory.dmp
    Filesize

    304KB