General

  • Target

    New Order.exe

  • Size

    859KB

  • Sample

    210727-xryszle7g2

  • MD5

    b8e5a84cef79a45bb1d32eae8cfefb0e

  • SHA1

    4f54310299013d1fd52c0f8e1640487393a5ee9d

  • SHA256

    fad8c5931f0dd3fbd63fe0a0e2d6799edf4004ed20a9afebbcd54cfabb5595fd

  • SHA512

    dce3c04a834e63019004a9aa76c7815c446d648e96c517a14c5604e7ad4e0e1efa35feb358484fbc89e59f88880be74de64b99c8c61bc6a4903ee1cbe907afbc

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.alruomigroup.com
  • Port:
    587
  • Username:
    eepauloffice@alruomigroup.com
  • Password:
    HpabZXh7

Targets

    • Target

      New Order.exe

    • Size

      859KB

    • MD5

      b8e5a84cef79a45bb1d32eae8cfefb0e

    • SHA1

      4f54310299013d1fd52c0f8e1640487393a5ee9d

    • SHA256

      fad8c5931f0dd3fbd63fe0a0e2d6799edf4004ed20a9afebbcd54cfabb5595fd

    • SHA512

      dce3c04a834e63019004a9aa76c7815c446d648e96c517a14c5604e7ad4e0e1efa35feb358484fbc89e59f88880be74de64b99c8c61bc6a4903ee1cbe907afbc

    • AgentTesla

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

    • AgentTesla Payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Obfuscated with Agile.Net obfuscator

      Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Tasks