General

  • Target

    6a33fd9b1812a319e10fb337b87baabf2f90ae938b9bb1d0bed94c70b7cc2423

  • Size

    1.4MB

  • Sample

    240522-by1mtagc8x

  • MD5

    40e5539808f22d1d0c67ee37c5b8aff5

  • SHA1

    78ba829b56999205760dd168ef5af044e5861abe

  • SHA256

    6a33fd9b1812a319e10fb337b87baabf2f90ae938b9bb1d0bed94c70b7cc2423

  • SHA512

    db9a24dbc92b79c0b95b7dbdb904d69462092a0ca57c5f58959e7362c605f6ee6dddb7293c07343e0ba79eb2b39edbec9f4817f05a6106d7aa2ad47b804837c0

  • SSDEEP

    12288:QMMbni72U8L4042zQ1WVeXFfJoPQ59ouW1md0PaLAJRCIYpu5ssoxJzNJbH7o:/Mbni723L73/gXFxoYzcBVeNN7o

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.avtorska.com.mk
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    avtorska2014@

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      ITEMS CATOLOG SLIDE.exe

    • Size

      937KB

    • MD5

      4a323d354ce4f623d28481674820af27

    • SHA1

      47c96244f4f6c5ba61b09d97694afbf16707cff8

    • SHA256

      9a40bb86b69f6c6702f4cef6b9b4c51c68d5923a239eaf6ed3029374d13ccee8

    • SHA512

      2f5cec2c419460af012bfc233222db3ba7ba64c2339ac4c2f6dca17377c7cdf4f0cfa4fbec47577f35fcbeee728724483d5e98357681261a9a7cb7675a89fcb3

    • SSDEEP

      12288:PMMbni72U8L4042zQ1WVeXFfJoPQ59ouW1md0PaLAJRCIYpu5ssoxJzNJbH7o:kMbni723L73/gXFxoYzcBVeNN7o

    • AgentTesla

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • 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

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

2
T1552

Credentials In Files

2
T1552.001

Discovery

Remote System Discovery

1
T1018

Collection

Data from Local System

2
T1005

Tasks