General

  • Target

    99a565b1df705062e82bd4d7587c2959.bin

  • Size

    2KB

  • Sample

    240328-ce1n5sae69

  • MD5

    358de422745ac7f4eb02accb8b8d8a40

  • SHA1

    ea7fe1428283659f46fb17dfc4091eef3c0eaedf

  • SHA256

    b3c70bb891c0a16d527097628195d6804556e300b3746d19e5f3820455d91e2e

  • SHA512

    55da9cbdc45c9568a53e4adbf43698d3636fbed64c2122f00cf4f0f55203e7657a5c4018efaf98a0b4aaa248dd245ca9e727e7e23cbf07ff592839b9c7b1a6f1

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.gosportz.in
  • Port:
    587
  • Username:
    sales@gosportz.in
  • Password:
    Ss@gosportz
  • Email To:
    info.superseal@yandex.com

Targets

    • Target

      e8fac55896700a6e6505cc1b8d4f98570358c0a1275564d587845cfb5ec47068.rtf

    • Size

      3KB

    • MD5

      99a565b1df705062e82bd4d7587c2959

    • SHA1

      1817b3ef54cf96f71bbb581ef21c37c820c125f0

    • SHA256

      e8fac55896700a6e6505cc1b8d4f98570358c0a1275564d587845cfb5ec47068

    • SHA512

      6893bb6540e7c92cb2d39dae83dd7e16a5ed0cc8bc468e13d65dc1a4e5b909bc9a249b306323167a986ee199b6ff6a9d444b673028e4b92aeb9b0b62607ed15c

    • AgentTesla

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Exploitation for Client Execution

1
T1203

Defense Evasion

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

3
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Tasks