Analysis

  • max time kernel
    69s
  • max time network
    141s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    09-07-2020 07:42

General

  • Target

    PO-20200709.exe

  • Size

    922KB

  • MD5

    c2a716ded7676fcc85c9f7299128e85a

  • SHA1

    c612356859cc4f15e251a22f009f86e0acce05d9

  • SHA256

    da2d328729fc82001649fea94517079e39a3579d3154778bda61072c5c3b2590

  • SHA512

    d8754f6fe55228e3fbde6d8a4390f396817873adc3f6f8962bc527b8d1c373752ca5e3c36cb88980b69555632005d9ba04a73aec4dc4fbb07d0c62a70c0589d0

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.dstec.mx
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    .chimaobi@070

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 IoCs
  • Drops file in Drivers directory 1 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\PO-20200709.exe
    "C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3100
    • C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe
      "C:\Users\Admin\AppData\Local\Temp\PO-20200709.exe"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3936

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3936-0-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/3936-2-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/3936-3-0x0000000000400000-0x00000000004A5000-memory.dmp

    Filesize

    660KB

  • memory/3936-4-0x00000000021A0000-0x00000000021EC000-memory.dmp

    Filesize

    304KB

  • memory/3936-5-0x0000000002192000-0x0000000002193000-memory.dmp

    Filesize

    4KB