General

  • Target

    04a990af9ec733087cd99c0923184bca77cdd9ac0212383bcdeeca36dfa60abf

  • Size

    249KB

  • Sample

    220520-21yt4sbchk

  • MD5

    9c753821e1f320f36d91b03e17a398ea

  • SHA1

    dd8138ece680ac297b5b46366a6e49b1affc86df

  • SHA256

    04a990af9ec733087cd99c0923184bca77cdd9ac0212383bcdeeca36dfa60abf

  • SHA512

    11f58cb140c3aaed7b4c781d7a2919a411ac13ccb271ad20791be2fb6ee45d615d607a4069358830aae34c4e106657ae1aff5caaa6041a83dae7b0c06833b51d

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    alibaba123

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    alibaba123

Targets

    • Target

      PO INOXIA-2020082.exe

    • Size

      424KB

    • MD5

      f19e40c4a17e876861224a3bdf4865db

    • SHA1

      7c128d123de06af4fdb9448aab02ae952ca0896a

    • SHA256

      89783698af3d7850d24aab49842448e97ea61977ceb7133d501057349d8cbffe

    • SHA512

      e2912aefb14683aae061fff3db8590622fe7da72c88d05f8b32045090a432b274175ac3a3705e2620888380762249d987bcb73eade2c05c8c42d44f1e8adc083

    • AgentTesla

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

    • AgentTesla Payload

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Tasks