Analysis

  • max time kernel
    139s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 23:17

General

  • Target

    Purchase Order.exe

  • Size

    635KB

  • MD5

    7abd6ed3261587bcd8714fa62eeaeb22

  • SHA1

    ad4bc7fc5c9f4558ca781e985a923c45cb48812b

  • SHA256

    976cef67fbe1b476e5482d0b1c6fad9b76a8b04e241edd6d88de8584d53630a3

  • SHA512

    002c2a9e705e52dd51de641091e25cbfd31e9c907b52ff4ececb3b7b1e61e67150a97abc78108f917f7378dac053729848fee146c764f718b0ceef412b4175d7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    babacj1234567890

Signatures

  • AgentTesla

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

  • AgentTesla Payload 6 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe
      "C:\Users\Admin\AppData\Local\Temp\Purchase Order.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:1228

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1228-64-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1228-59-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1228-60-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1228-62-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1228-63-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1228-65-0x00000000004543EE-mapping.dmp
  • memory/1228-67-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1228-69-0x0000000000400000-0x000000000045A000-memory.dmp
    Filesize

    360KB

  • memory/1720-55-0x00000000753B1000-0x00000000753B3000-memory.dmp
    Filesize

    8KB

  • memory/1720-56-0x0000000000260000-0x000000000026A000-memory.dmp
    Filesize

    40KB

  • memory/1720-57-0x0000000004E00000-0x0000000004E72000-memory.dmp
    Filesize

    456KB

  • memory/1720-58-0x0000000004770000-0x00000000047CA000-memory.dmp
    Filesize

    360KB

  • memory/1720-54-0x00000000008E0000-0x0000000000986000-memory.dmp
    Filesize

    664KB