General

  • Target

    2A013945C03285FA0AA02F04A9E7557DF761A75BDD39B22CBF682721192D8BCC

  • Size

    525KB

  • Sample

    221123-r2gl4sda91

  • MD5

    89658ee8fbac7a084a59bf030e0098bd

  • SHA1

    effee1f0cf2344cac89f67b6f59b4147d342cf42

  • SHA256

    2a013945c03285fa0aa02f04a9e7557df761a75bdd39b22cbf682721192d8bcc

  • SHA512

    179f28c29ad95ec62cd8d3384541843586189c97b67fdcab445ba95f9671b7a90326a63fa07f37246f43afac19dd4d429a2d03c351ac6098bfa28fd882520d17

  • SSDEEP

    12288:Wx8F5sEtZRgwhUIJQbikNeJU5GBUX+X7DIryrFUA:WxMzZRg1bLeJafuXNrFX

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://192.3.223.202
  • Port:
    21
  • Username:
    ftplogs
  • Password:
    sPkZ7jK7P6aA

Targets

    • Target

      FA369852.exe

    • Size

      753KB

    • MD5

      fe95779f01c2cf063ca96f9227c079c7

    • SHA1

      3ed0e9d3472f191d2aace68d6c0f75149228ff3b

    • SHA256

      6497c358f05eae2afbb8535f92a187cb27293fb583017c19bd495f838d7b2d26

    • SHA512

      dff6c1baf63d3a180d60c0dfc22619b31dc884f4a9a88d501041d92f6b65794f478fb432452f8064264f9a8f73cbebe257c9d65c3e08f62c3b9d3b734f7e6479

    • SSDEEP

      12288:gigDGkBZwgwhUpJQN1kw9zb5GB4XXo713JEI5M/:I3BZwg0Nx9z1LHo8

    • AgentTesla

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • 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.

    • Accesses Microsoft Outlook profiles

    • Adds Run key to start application

    • 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 v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks