Analysis

  • max time kernel
    133s
  • max time network
    13s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22-01-2021 06:26

General

  • Target

    Purchase Order no 7770022460.exe

  • Size

    984KB

  • MD5

    c1483093c6d677f762a847a4e3cb566e

  • SHA1

    3c4090a6ae20f948b50ed3203483568aa8cac2c1

  • SHA256

    98cea7e20d6760aa8052e7be2968a74df11f602bf9860243631f1a56140fa13c

  • SHA512

    8a603cc118e95f29f822e8756671b4ee543a4b7421d90fefe55f1fb9121d320c800a833034a3293b8f0a076e8a32b8f20ba352d65674a2651d3f79e9fde16d3f

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.aepmarinesparts.com
  • Port:
    587
  • Username:
    n.louter@aepmarinesparts.com
  • Password:
    NtKyM*p4

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order no 7770022460.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order no 7770022460.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1684
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order no 7770022460.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1632

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1632-8-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1632-9-0x000000000043760E-mapping.dmp
  • memory/1632-10-0x0000000074670000-0x0000000074D5E000-memory.dmp
    Filesize

    6.9MB

  • memory/1632-11-0x0000000000400000-0x000000000043C000-memory.dmp
    Filesize

    240KB

  • memory/1632-13-0x0000000004980000-0x0000000004981000-memory.dmp
    Filesize

    4KB

  • memory/1632-14-0x0000000004981000-0x0000000004982000-memory.dmp
    Filesize

    4KB

  • memory/1684-2-0x0000000074670000-0x0000000074D5E000-memory.dmp
    Filesize

    6.9MB

  • memory/1684-3-0x0000000001130000-0x0000000001131000-memory.dmp
    Filesize

    4KB

  • memory/1684-5-0x0000000004950000-0x0000000004951000-memory.dmp
    Filesize

    4KB

  • memory/1684-6-0x00000000004A0000-0x00000000004AE000-memory.dmp
    Filesize

    56KB

  • memory/1684-7-0x0000000005690000-0x0000000005736000-memory.dmp
    Filesize

    664KB